{"id":7165,"date":"2026-08-27T04:56:36","date_gmt":"2026-08-27T12:56:36","guid":{"rendered":"https:\/\/changyupump.com\/?p=7165"},"modified":"2026-08-27T05:02:12","modified_gmt":"2026-08-27T13:02:12","slug":"desalination-brine-pump","status":"publish","type":"post","link":"https:\/\/changyupump.com\/fr\/blog\/desalination-brine-pump\/","title":{"rendered":"Pompe de saumure de dessalement : Comment choisir le bon mat\u00e9riau et le bon type de pompe"},"content":{"rendered":"<h2 class=\"wp-block-heading\"><strong>Points cl\u00e9s<\/strong><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Le choix du mat\u00e9riau est le facteur n\u00b01 de la dur\u00e9e de vie des pompes \u00e0 saumure<\/strong> \u2014 L\u2019acier inoxydable 304 se d\u00e9grade en quelques semaines \u00e0 plus de 1 000 ppm de chlorures ; le super duplex 2507 (PRE 42\u201345) r\u00e9siste \u00e0 plus de 15 000 ppm de chlorures \u00e0 60 \u00b0C.<\/li>\n\n\n\n<li><strong>Six nuances de mat\u00e9riaux sont disponibles pour le service saumure<\/strong>; le 904L (PRE 34\u201336) comble l\u2019\u00e9cart entre le 316L et le 2205, tandis que le titane offre une quasi-immunit\u00e9 aux chlorures \u00e0 des temp\u00e9ratures allant jusqu\u2019\u00e0 120 \u00b0C (mais ne convient pas aux fluorures ni aux acides r\u00e9ducteurs).<\/li>\n\n\n\n<li><strong>L\u2019architecture de la pompe doit correspondre \u00e0 l\u2019\u00e9tape du proc\u00e9d\u00e9<\/strong> \u2014 pompe monocellulaire CYH pour la prise d\u2019eau de mer (0,8\u2013750 m\u00b3\/h, hauteur manom\u00e9trique \u2264130 m), pompe multicellulaire DF pour le transport de saumure RO haute pression (3,75\u2013850 m\u00b3\/h, jusqu\u2019\u00e0 816 m de hauteur manom\u00e9trique).<\/li>\n\n\n\n<li><strong>La conception du syst\u00e8me d\u2019\u00e9tanch\u00e9it\u00e9 est essentielle pour le service saumure<\/strong> \u2014 les plans de rin\u00e7age API 682 (Plan 11\/21\/32\/62) et les garnitures m\u00e9caniques doubles \u00e0 faces SiC sont recommand\u00e9s pour la saumure cristallisante ou \u00e0 forte salinit\u00e9.<\/li>\n\n\n\n<li><strong>L\u2019analyse du co\u00fbt total de possession montre que le passage du 316L au 2507 peut r\u00e9duire le co\u00fbt du cycle de vie de 30 \u00e0 40 %<\/strong> malgr\u00e9 un co\u00fbt initial du mat\u00e9riau plus \u00e9lev\u00e9, gr\u00e2ce \u00e0 une dur\u00e9e de vie prolong\u00e9e et \u00e0 une r\u00e9duction des temps d\u2019arr\u00eat.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Desalination-Brine-Pump-How-to-Choose-the-Right-Material-Pump-Type.webp\" alt=\"Pompe \u00e0 saumure de dessalement : Comment choisir le bon mat\u00e9riau et le bon type de pompe\" class=\"wp-image-7175\" style=\"aspect-ratio:1.3333996023856858;width:909px;height:auto\" srcset=\"https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Desalination-Brine-Pump-How-to-Choose-the-Right-Material-Pump-Type.webp 1000w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Desalination-Brine-Pump-How-to-Choose-the-Right-Material-Pump-Type-300x225.webp 300w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Desalination-Brine-Pump-How-to-Choose-the-Right-Material-Pump-Type-150x113.webp 150w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Desalination-Brine-Pump-How-to-Choose-the-Right-Material-Pump-Type-768x576.webp 768w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Desalination-Brine-Pump-How-to-Choose-the-Right-Material-Pump-Type-16x12.webp 16w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Qu\u2019est-ce qu\u2019une pompe \u00e0 saumure de dessalement ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>pompe \u00e0 saumure de dessalement<\/strong> est un dispositif sp\u00e9cialis\u00e9 de manutention de fluides con\u00e7u pour transporter la saumure concentr\u00e9e \u00e0 forte salinit\u00e9 \u2014 le sous-produit des proc\u00e9d\u00e9s d\u2019osmose inverse (RO) et de dessalement thermique. Contrairement aux pompes industrielles standard, une pompe \u00e0 saumure de dessalement doit r\u00e9sister \u00e0 :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Concentrations de TDS<\/strong> allant de 50 000 ppm \u00e0 plus de 200 000 ppm, selon la salinit\u00e9 de l\u2019eau d\u2019alimentation et le taux de r\u00e9cup\u00e9ration du syst\u00e8me (une RO d\u2019eau de mer typique \u00e0 50 % de r\u00e9cup\u00e9ration produit une saumure \u00e0 ~70 000 ppm ; les syst\u00e8mes ZLD peuvent d\u00e9passer 200 000 ppm).<\/li>\n\n\n\n<li><strong>Niveaux de chlorures<\/strong> qui provoquent une corrosion par piq\u00fbres rapide dans les aciers inoxydables standard.<\/li>\n\n\n\n<li><strong>Cycles de service continus<\/strong> courants dans les usines de dessalement (plus de 8 000 heures\/an).<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ces pompes sont d\u00e9ploy\u00e9es \u00e0 plusieurs points du proc\u00e9d\u00e9 : prise d\u2019eau de mer, surpression d\u2019alimentation RO, refoulement de saumure et circulation \u00e0 rejet liquide nul (ZLD).<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">D\u00e9fis de corrosion dans le service saumure \u00e0 forte salinit\u00e9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1 Piq\u00fbres induites par les chlorures et valeur PRE<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les ions chlorure attaquent le film d\u2019oxyde passif sur l\u2019acier inoxydable, cr\u00e9ant des piq\u00fbres localis\u00e9es qui peuvent p\u00e9n\u00e9trer la paroi en quelques mois. La <strong>valeur \u00e9quivalente de r\u00e9sistance aux piq\u00fbres (PRE)<\/strong> est la m\u00e9trique standard pour classer la r\u00e9sistance d\u2019un mat\u00e9riau aux piq\u00fbres par chlorures :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>PRE = %Cr + 3,3 \u00d7 %Mo + 16 \u00d7 %N<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>304 : PRE 18\u201320 \u2192 limit\u00e9 \u00e0 ~200 ppm de chlorures \u00e0 60 \u00b0C<\/li>\n\n\n\n<li>316L : PRE 24\u201326 \u2192 limit\u00e9 \u00e0 &lt;1 000 ppm de chlorures<\/li>\n\n\n\n<li>2507 super duplex : PRE 42\u201345 \u2192 r\u00e9siste \u00e0 plus de 15 000 ppm de chlorures<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>R\u00e9f\u00e9rence :<\/strong> Les valeurs PRE sont d\u00e9termin\u00e9es selon les m\u00e9thodes d\u2019essai standard ASTM G48 pour la r\u00e9sistance aux piq\u00fbres et \u00e0 la corrosion caverneuse des aciers inoxydables.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">2 Fissuration par corrosion sous contrainte (SCC)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La combinaison de la contrainte de traction, de la temp\u00e9rature et des ions chlorure provoque une propagation rapide des fissures. Les nuances aust\u00e9nitiques (304, 316L) sont les plus vuln\u00e9rables ; les nuances duplex (2205, 2507) offrent une r\u00e9sistance nettement meilleure \u00e0 la SCC gr\u00e2ce \u00e0 leur microstructure ferritique-aust\u00e9nitique.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3 Corrosion caverneuse<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les joints avec garniture, les faces d\u2019\u00e9tanch\u00e9it\u00e9 et les connexions boulonn\u00e9es cr\u00e9ent des zones appauvries en oxyg\u00e8ne o\u00f9 la corrosion localis\u00e9e s\u2019acc\u00e9l\u00e8re. C\u2019est l\u2019emplacement de d\u00e9faillance le plus courant dans les pompes \u00e0 saumure, et il est trait\u00e9 en s\u00e9lectionnant des mat\u00e9riaux \u00e0 PRE plus \u00e9lev\u00e9 et en optimisant la conception de l\u2019\u00e9tanch\u00e9it\u00e9.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Guide de s\u00e9lection des mat\u00e9riaux pour pompes \u00e0 saumure de dessalement<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1 Tableau comparatif complet des mat\u00e9riaux (6 nuances)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Changyu Pump propose un syst\u00e8me de s\u00e9lection des mat\u00e9riaux par niveaux bas\u00e9 sur la concentration en chlorures, la temp\u00e9rature de fonctionnement et la teneur en particules. Voici la comparaison compl\u00e8te incluant le 904L et le titane, couramment utilis\u00e9s dans le service saumure mais omis dans de nombreux guides :<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Nuance<\/th><th>Classification<\/th><th>Valeur PRE<\/th><th>Tol\u00e9rance aux chlorures (60 \u00b0C)<\/th><th>Duret\u00e9 (HB)<\/th><th>Meilleur pour<\/th><th>Limites<\/th><\/tr><\/thead><tbody><tr><td><strong>304<\/strong><\/td><td>Aust\u00e9nitique (base)<\/td><td>18-20<\/td><td>~200 ppm<\/td><td>150-180<\/td><td>Eau douce, faible salinit\u00e9<\/td><td>Se d\u00e9grade rapidement dans la saumure d\u2019eau de mer<\/td><\/tr><tr><td><strong>316L<\/strong><\/td><td>Aust\u00e9nitique (avec Mo)<\/td><td>24-26<\/td><td>&lt;1 000 ppm<\/td><td>150-190<\/td><td>Eau de mer douce, faible teneur en chlorures<\/td><td>Ne convient pas \u00e0 la saumure RO<\/td><\/tr><tr><td><strong>904L<\/strong><\/td><td>Super Austenitic<\/td><td>34\u201336<\/td><td>~8,500 ppm<\/td><td>170\u2013210<\/td><td>Sulfuric\/phosphoric acid + chloride<\/td><td>Lower SCC resistance than 2205<\/td><\/tr><tr><td><strong>2205<\/strong><\/td><td>Duplex (Economical)<\/td><td>34-38<\/td><td>~8,500 ppm<\/td><td>250-280<\/td><td>Seawater, moderate brine, 5\u201310% solids<\/td><td>PRE lower than 2507<\/td><\/tr><tr><td><strong>2507<\/strong><\/td><td>Super Duplex<\/td><td>42-45<\/td><td>&gt;15,000 ppm<\/td><td>280\u2013330<\/td><td>High-chloride brine, ZLD, 10\u201315% solids<\/td><td>Co\u00fbt plus \u00e9lev\u00e9<\/td><\/tr><tr><td><strong>Titanium (CP Ti)<\/strong><\/td><td>Active Metal<\/td><td>N\/A<\/td><td>Near-immune up to 120\u00b0C<\/td><td>180\u2013210<\/td><td>Extreme chloride, high-temperature<\/td><td>\u274c Not for fluorides or reducing acids<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Corrosion Resistance Ranking (lowest \u2192 highest):<\/strong><br>304 &lt; 316L &lt; 904L \u2248 2205 &lt; 2507 &lt; Titanium<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Wear Resistance Ranking (lowest \u2192 highest):<\/strong><br>Titanium &lt; 304 \u2248 316L &lt; 904L &lt; 2205 &lt; 2507<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Key insight:<\/strong> 904L and 2205 have similar PRE values (34\u201338), but 2205 offers superior SCC resistance, making it the preferred choice for brine service where both corrosion and mechanical stress are factors.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">3.2 Quick Selection Chart for Desalination Brine Pumps<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u00c9tat de fonctionnement<\/th><th>Mat\u00e9riau recommand\u00e9<\/th><th>S\u00e9rie de pompes recommand\u00e9e<\/th><th>Key Parameters<\/th><\/tr><\/thead><tbody><tr><td>Seawater intake, low-pressure<\/td><td>2205 Duplex<\/td><td>CYH single-stage<\/td><td>0.8\u2013750 m\u00b3\/h, \u2264130 m, -20\u00b0C to 165\u00b0C<\/td><\/tr><tr><td>Alimentation haute pression pour osmose inverse<\/td><td>2507 Super Duplex<\/td><td>DF multistage<\/td><td>3.75\u2013850 m\u00b3\/h, 19\u2013816 m, \u226480\u00b0C<\/td><\/tr><tr><td>Brine discharge (medium pressure)<\/td><td>2507 \/ 2205<\/td><td>CYH or DF<\/td><td>Depends on head requirement<\/td><\/tr><tr><td>Brine with particles (5\u201310% solids)<\/td><td>2205 \/ 2507<\/td><td>DF multistage<\/td><td>Flow rate matched to solids content<\/td><\/tr><tr><td>ZLD system (ultra-concentrated brine)<\/td><td>2507<\/td><td>DF multistage<\/td><td>Haute r\u00e9sistance \u00e0 la corrosion requise<\/td><\/tr><tr><td>High-temperature brine (\u226580\u00b0C)<\/td><td>2507 \/ Titanium<\/td><td>CYH single-stage<\/td><td>CYH supports up to 165\u00b0C<\/td><\/tr><tr><td>Fluoric acid or fluorides in brine<\/td><td>\u274c Not Titanium<\/td><td>2507 preferred<\/td><td>Titanium is incompatible with fluorides<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">3.3 Material Cost vs. Lifecycle Tradeoff<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">While 2507 super duplex has a higher initial material cost (approximately 2\u20133\u00d7 that of 316L), the <strong>le co\u00fbt total de possession (TCO)<\/strong> analysis tells a different story:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>316L<\/strong> in brine &gt;1,000 ppm chloride: typical service life 6\u201312 months, frequent replacement cost<\/li>\n\n\n\n<li><strong>2205<\/strong> in moderate brine: typical service life 3\u20135 years<\/li>\n\n\n\n<li><strong>2507<\/strong> in high-chloride brine: typical service life 8\u201310+ years<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">For a 200 kW pump running 8,000 hours per year (assuming 85% average load factor), the energy cost alone is significant. The DF series achieves a <strong>15% energy efficiency improvement over its lifecycle<\/strong> due to the four-stage axial force balancing system, which translates to approximately <strong>240,000 kWh saved per year<\/strong> under full-load operation, or ~204,000 kWh at 85% load factor.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/changyupump.com\/wp-content\/uploads\/2026\/07\/Lithium-Slurry-Pump.webp\" alt=\"Desalination Brine Pump\" class=\"wp-image-6302\" srcset=\"https:\/\/changyupump.com\/wp-content\/uploads\/2026\/07\/Lithium-Slurry-Pump.webp 1000w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/07\/Lithium-Slurry-Pump-300x225.webp 300w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/07\/Lithium-Slurry-Pump-150x113.webp 150w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/07\/Lithium-Slurry-Pump-768x576.webp 768w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/07\/Lithium-Slurry-Pump-16x12.webp 16w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. Pump Types for Desalination Brine Service<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">4.1 CYH Series \u2014 Single-Stage Centrifugal Seawater Pump<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Designed for seawater intake, low-pressure brine transfer, and general marine service.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Param\u00e8tres<\/th><th>Range<\/th><\/tr><\/thead><tbody><tr><td>D\u00e9bit<\/td><td>0,8\u2013750 m\u00b3\/h<\/td><\/tr><tr><td>T\u00eate<\/td><td>3\u2013130 m<\/td><\/tr><tr><td>Temp\u00e9rature<\/td><td>-20\u00b0C \u00e0 165\u00b0C<\/td><\/tr><tr><td>Standard<\/td><td>ISO 2858<\/td><\/tr><tr><td>Mat\u00e9riaux<\/td><td>304, 316L, 2205, 2507<\/td><\/tr><tr><td>Design<\/td><td>Single-stage, single-suction, cantilever, semi-open impeller<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The CYH series features a <strong>semi-open impeller design<\/strong> that reduces cavitation risk and improves passage efficiency for brine with trace solids. Its optimized hydraulic profile minimizes NPSH requirements, making it suitable for low-NPSH installation conditions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/changyupump.com\/fr\/produit\/centrifugal-pump-for-caustic-soda\/\">\u2192 CYH Series Centrifugal Sea Water Pump Product Page<\/a><\/p>\n\n\n<style>.kb-image7165_298aa8-5d .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image7165_298aa8-5d size-large\"><img decoding=\"async\" src=\"https:\/\/changyupump.com\/wp-content\/uploads\/2026\/02\/Centrifugal-Pump-for-Caustic-Soda-1-1024x768.webp\" alt=\"\" class=\"kb-img\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">4.2 DF Series \u2014 Multistage Pump for RO Brine Transport<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Purpose-built for high-pressure brine applications including RO feed, concentrated brine discharge, and ZLD systems.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Param\u00e8tres<\/th><th>Range<\/th><\/tr><\/thead><tbody><tr><td>D\u00e9bit<\/td><td>3.75\u2013850 m\u00b3\/h<\/td><\/tr><tr><td>T\u00eate<\/td><td>19\u2013816 m<\/td><\/tr><tr><td>Temp\u00e9rature<\/td><td>\u226480\u00b0C<\/td><\/tr><tr><td>Mat\u00e9riaux<\/td><td>316L, 2205, 2507, high-chromium alloy<\/td><\/tr><tr><td>Design<\/td><td>Segmental casing (drum-type), four-stage axial force balancing<\/td><\/tr><tr><td>Efficacit\u00e9<\/td><td>Up to 82%; 15% energy saving over lifecycle<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Four-stage axial force balancing system:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Stage 1: Balancing drum offsets ~70% of axial thrust<\/li>\n\n\n\n<li>Stage 2: Pressure adjustment ring neutralizes another ~20%<\/li>\n\n\n\n<li>Stage 3: Throttle plate handles the remaining ~10%<\/li>\n\n\n\n<li>Stage 4: Precision positioning maintains concentricity under variable frequency operation<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Le <strong>differential hardness friction pair<\/strong> design (rotor and stator with different hardness levels) reduces running clearance and boosts overall efficiency by over 3% compared to conventional designs.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/changyupump.com\/fr\/produit\/horizontal-multistage-centrifugal-pump\/\">\u2192 DF Series Horizontal Multistage Centrifugal Pump Product Page<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Horizontal-Multistage-Centrifugal-Pump-1-1024x768-1.jpg\" alt=\"\" class=\"wp-image-7180\" srcset=\"https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Horizontal-Multistage-Centrifugal-Pump-1-1024x768-1.jpg 1024w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Horizontal-Multistage-Centrifugal-Pump-1-1024x768-1-300x225.jpg 300w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Horizontal-Multistage-Centrifugal-Pump-1-1024x768-1-150x113.jpg 150w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Horizontal-Multistage-Centrifugal-Pump-1-1024x768-1-768x576.jpg 768w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Horizontal-Multistage-Centrifugal-Pump-1-1024x768-1-16x12.jpg 16w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">4.3 Alternative Pump Types for Brine Service<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">For experienced engineers evaluating all options, the following pump types are also used in brine applications:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Type de pompe<\/th><th>Avantages<\/th><th>Limites<\/th><th>Typical Brine Application<\/th><\/tr><\/thead><tbody><tr><td><strong>Pompe \u00e0 turbine verticale<\/strong><\/td><td>High flow, high head in single unit; small footprint<\/td><td>Difficult maintenance; higher NPSH requirement<\/td><td>Seawater intake, deep well brine extraction<\/td><\/tr><tr><td><strong>Pompe \u00e0 entra\u00eenement magn\u00e9tique<\/strong> (e.g., CYQ Series)<\/td><td>Zero leakage; no mechanical seal; ideal for toxic\/corrosive brine<\/td><td>Limited to lower power; temperature restricted by lining material<\/td><td>Chemical brine, hazardous brine with strict environmental requirements<\/td><\/tr><tr><td><strong>PTFE-lined Pump<\/strong> (e.g., IHF Series)<\/td><td>Excellent corrosion resistance against acids and alkalis; economical<\/td><td>Temperature limited to 120\u00b0C (PFA: 180\u00b0C); limited pressure rating<\/td><td>Acidic brine from chemical processes<\/td><\/tr><tr><td><strong>Positive Displacement Plunger Pump<\/strong><\/td><td>High pressure capability; efficient at low flow<\/td><td>High maintenance; pulsation flow; not for solids<\/td><td>Small SWRO systems, high-pressure dosing<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Each pump type has its niche. The selection should be based on <strong>flow rate, head, temperature, particle content, and environmental regulations<\/strong> specific to your project.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. Seal System Design for Desalination Brine Pumps<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Seal failure is the most common cause of brine pump downtime. A properly designed seal system is as important as the pump material itself.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5.1 Mechanical Seal Types<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Type de joint<\/th><th>Recommended for Brine Service<\/th><th>Notes<\/th><\/tr><\/thead><tbody><tr><td><strong>Garniture m\u00e9canique simple<\/strong><\/td><td>Low-pressure, clean brine<\/td><td>SiC vs SiC faces; requires clean flush<\/td><\/tr><tr><td><strong>Dual mechanical seal (back-to-back)<\/strong><\/td><td>Crystallizing brine, high-chloride<\/td><td>API Plan 52\/53; barrier fluid protects seal faces<\/td><\/tr><tr><td><strong>Garniture m\u00e9canique \u00e0 cartouche<\/strong><\/td><td>All brine applications<\/td><td>Pre-assembled, easy replacement, reduces installation error<\/td><\/tr><tr><td><strong>Garniture de presse-\u00e9toupe<\/strong><\/td><td>Older pumps, emergency service<\/td><td>Higher leakage; not recommended for modern brine plants<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">5.2 API 682 Flush Plans for Brine Service<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le <strong>API 682 standard<\/strong> defines seal flush plans that are critical for brine pump reliability:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Plan 11:<\/strong> Recirculation from pump discharge to seal \u2014 suitable for clean brine with no crystallizing tendency<\/li>\n\n\n\n<li><strong>Plan 21:<\/strong> Recirculation with orifice and cooler \u2014 for brine above 80\u00b0C that requires cooling before seal face<\/li>\n\n\n\n<li><strong>Plan 32:<\/strong> Clean external water flush injected into seal chamber \u2014 <strong>recommended for crystallizing brine<\/strong> to prevent salt deposition on seal faces<\/li>\n\n\n\n<li><strong>Plan 62:<\/strong> Quench with steam or water \u2014 for brine that crystallizes on atmospheric side of seal<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>For desalination brine with high scaling potential (high Ca\u00b2\u207a, Mg\u00b2\u207a, or silica content), API Plan 32 with clean external flush is the most reliable approach.<\/strong><\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">5.3 Seal Face Material Selection<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Face Material<\/th><th>Duret\u00e9<\/th><th>Recommand\u00e9 pour<\/th><th>\u00c9viter<\/th><\/tr><\/thead><tbody><tr><td><strong>Carbure de silicium (SiC)<\/strong><\/td><td>2,500 HV<\/td><td>Most brine applications; excellent chemical resistance<\/td><td>High-temperature thermal shock<\/td><\/tr><tr><td><strong>Tungsten Carbide (WC)<\/strong><\/td><td>1,500 HV<\/td><td>Abrasive brine with particles<\/td><td>Strong oxidizing agents<\/td><\/tr><tr><td><strong>Diamond-Like Carbon (DLC)<\/strong><\/td><td>3,000+ HV<\/td><td>Extremely abrasive brine; low-friction requirement<\/td><td>High cost<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">6. NPSH Considerations for Desalination Brine Pumps<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Brine has a higher density (1,020\u20131,150 kg\/m\u00b3 for seawater brine) compared to fresh water, which affects the <strong>Hauteur d'aspiration positive nette (NPSH)<\/strong> calculation:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>NPSHa (Available)<\/strong> = Atmospheric pressure + Static suction head \u2212 Friction losses \u2212 Vapor pressure of brine<\/li>\n\n\n\n<li><strong>NPSHr (Required)<\/strong> is provided by the pump manufacturer for each operating point<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>For brine at 60\u00b0C with TDS of 70,000 ppm, the vapor pressure is approximately 5% lower than fresh water at the same temperature, which slightly improves NPSHa. However, the higher density increases friction losses in the suction piping.<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Practical guidelines for brine pump installation:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Maintain at least 0.5 m NPSH margin above NPSHr<\/li>\n\n\n\n<li>Keep suction piping as short and straight as possible<\/li>\n\n\n\n<li>For CYH series, the semi-open impeller design provides better cavitation resistance at low NPSH conditions<\/li>\n\n\n\n<li>For DF series, NPSHr values range from 2.0 to 6.7 m depending on model and stage count<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">7. Total Cost of Ownership (TCO) Analysis<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">7.1 Material Cost vs. Service Life<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Material Grade<\/th><th>Relative Material Cost<\/th><th>Typical Service Life in Brine (&gt;10,000 ppm Cl\u207b)<\/th><th>10-Year TCO (per pump)<\/th><\/tr><\/thead><tbody><tr><td>316L<\/td><td>1.0\u00d7 (baseline)<\/td><td>6\u201312 mois<\/td><td>Multiple replacements + downtime<\/td><\/tr><tr><td>2205<\/td><td>1.5\u20131.8\u00d7<\/td><td>3\u20135 ans<\/td><td>2\u20133 remplacements<\/td><\/tr><tr><td>2507<\/td><td>2.5\u20133.0\u00d7<\/td><td>8\u201310+ years<\/td><td>1 replacement or less<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">7.2 Energy Efficiency Impact<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The DF series energy efficiency improvement of 15% translates to significant operational savings:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Example: 200 kW pump, 8,000 hrs\/year, 85% average load factor<\/li>\n\n\n\n<li>Annual energy consumption: 200 \u00d7 8,000 \u00d7 0.85 = <strong>1,360,000 kWh<\/strong><\/li>\n\n\n\n<li>With 15% efficiency improvement: savings of <strong>~204,000 kWh\/year<\/strong><\/li>\n\n\n\n<li>At $0.10\/kWh: <strong>$20,400\/year in energy savings<\/strong> \u2014 enough to offset the material upgrade cost within 2\u20133 years<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">8. Case Study of Desalination Brine Pump in a Middle East SWRO Plant<\/h2>\n\n\n<style>.kb-image7165_6e4e85-e5 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image7165_6e4e85-e5 size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/changyupump.com\/wp-content\/uploads\/2026\/07\/Pump-for-Demineralized-Water-API-685-Magnetic-Drive-Pump-2-1024x576.webp\" alt=\"Case Study of Desalination Brine Pump\" class=\"kb-img wp-image-6292\" srcset=\"https:\/\/changyupump.com\/wp-content\/uploads\/2026\/07\/Pump-for-Demineralized-Water-API-685-Magnetic-Drive-Pump-2-1024x576.webp 1024w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/07\/Pump-for-Demineralized-Water-API-685-Magnetic-Drive-Pump-2-300x169.webp 300w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/07\/Pump-for-Demineralized-Water-API-685-Magnetic-Drive-Pump-2-150x84.webp 150w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/07\/Pump-for-Demineralized-Water-API-685-Magnetic-Drive-Pump-2-768x432.webp 768w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/07\/Pump-for-Demineralized-Water-API-685-Magnetic-Drive-Pump-2-18x10.webp 18w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/07\/Pump-for-Demineralized-Water-API-685-Magnetic-Drive-Pump-2.webp 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Project Background:<\/strong><br>A 100,000 m\u00b3\/day seawater RO plant in the Arabian Gulf was experiencing pump failures every 6\u20139 months with 316L pumps in their brine discharge service. The brine TDS ranged from 68,000\u201372,000 ppm with a temperature of 32\u201338\u00b0C.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>D\u00e9fi :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Severe pitting corrosion on impeller and casing<\/li>\n\n\n\n<li>Mechanical seal failures due to salt crystallization on seal faces<\/li>\n\n\n\n<li>Unplanned downtime averaging 12 days per year<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Solution :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Upgraded to <strong>DF series multistage pump<\/strong> avec <strong>2507 super duplex<\/strong> wetted parts<\/li>\n\n\n\n<li>Installed <strong>dual mechanical seal with API Plan 32 clean water flush<\/strong><\/li>\n\n\n\n<li>Added <strong>four-stage axial force balancing system<\/strong> for variable-frequency operation<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Results After 3 Years:<\/strong><\/p>\n\n\n<style>.kb-image7165_d46ded-a4 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image7165_d46ded-a4 size-large\"><img decoding=\"async\" src=\"https:\/\/changyupump.com\/wp-content\/uploads\/2026\/03\/Horizontal-Multistage-Centrifugal-Pump-3-1024x768.jpg\" alt=\"DF series multistage desalination brine Pump\" class=\"kb-img\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>M\u00e9trique<\/th><th>Before (316L)<\/th><th>After (2507 DF)<\/th><\/tr><\/thead><tbody><tr><td>Dur\u00e9e de vie de la pompe<\/td><td>6\u20139 mois<\/br><\/td><td>3+ years (still in service)<\/td><\/tr><tr><td>Seal replacement interval<\/td><td>3\u20134 months<\/td><td>18+ months<\/td><\/tr><tr><td>Annual unplanned downtime<\/td><td>12 days<\/td><td>&lt;1 day<\/td><\/tr><tr><td>Consommation d'\u00e9nergie<\/td><td>Base de r\u00e9f\u00e9rence<\/td><td>15% lower<\/td><\/tr><tr><td>Maintenance cost\/year<\/td><td>$18,500<\/td><td>$3,200<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">9. Frequently Asked Questions<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q1: What is the recommended material for a desalination brine pump?<\/strong><br>For concentrated brine (TDS &gt;65,000 ppm), <strong>Acier inoxydable 2507 super duplex<\/strong> is the recommended material. For moderate seawater conditions, <strong>2205 duplex<\/strong> provides an optimal balance of cost and corrosion resistance. For applications involving fluorides or reducing acids, use 2507 or high-chromium alloys instead of titanium.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q2: What is the maximum chloride concentration for 316L in brine service?<\/strong><br>316L is generally limited to environments with less than <strong>1,000 ppm chloride at ambient temperature<\/strong>. Above this threshold, pitting corrosion accelerates significantly. Most seawater brine applications (15,000\u201320,000 ppm Cl\u207b) require at least 2205 duplex.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q3: How to choose between single-stage and multistage pump for brine?<\/strong><br>Use the <strong>head requirement<\/strong> as the primary decision criterion:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Head \u2264130 m:<\/strong> CYH single-stage is typically more economical<\/li>\n\n\n\n<li><strong>Head &gt;130 m or up to 816 m:<\/strong> DF multistage is required<\/li>\n\n\n\n<li>Also consider temperature: CYH supports up to 165\u00b0C, DF is limited to 80\u00b0C<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q4: What seal type is recommended for high-salinity brine?<\/strong><br><strong>Dual mechanical seal with API Plan 32 clean water flush<\/strong> is recommended for crystallizing brine. For clean brine without crystallization risk, a single SiC\/SiC mechanical seal with API Plan 11 recirculation is sufficient.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q5: What is the maximum temperature for brine pump operation?<\/strong><br>Pour <strong>CYH series<\/strong>: -20\u00b0C to 165\u00b0C depending on material configuration. For <strong>DF series<\/strong>: \u226480\u00b0C. For titanium pumps, the practical limit is approximately 120\u00b0C for chloride immunity.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q6: How does PRE value affect material selection?<\/strong><br>PRE value is the primary indicator of chloride pitting resistance. The formula is <strong>PRE = %Cr + 3.3\u00d7%Mo + 16\u00d7%N<\/strong>. A higher PRE value indicates better resistance to chloride-induced pitting. For brine service, PRE \u2265 34 (2205 or 904L) is the minimum recommended threshold.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q7: Can titanium be used for all desalination brine pumps?<\/strong><br><strong>Non.<\/strong> Titanium offers excellent chloride resistance (near-immune up to 120\u00b0C) but has critical limitations: it is <strong>not suitable for fluorides<\/strong> (e.g., hydrofluoric acid), <strong>not recommended for reducing acids<\/strong> (e.g., dilute sulfuric acid), and has <strong>low wear resistance<\/strong> (HB 180\u2013210, lowest among the six grades). Titanium should only be used for &#8220;clean but corrosive&#8221; brine.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q8: What causes pump failure in desalination plants?<\/strong><br>The most common failure modes in order of frequency:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Corrosion<\/strong> (pitting, SCC, crevice corrosion) \u2014 45% of failures<\/li>\n\n\n\n<li><strong>D\u00e9faillance d'une garniture m\u00e9canique<\/strong> \u2014 30% of failures<\/li>\n\n\n\n<li><strong>Bearing failure<\/strong> due to axial thrust imbalance \u2014 15% of failures<\/li>\n\n\n\n<li><strong>Cavitation damage<\/strong> \u2014 10% of failures<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">10. Environmental Compliance and Regulatory Considerations<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Brine discharge from desalination plants is subject to environmental regulations that may affect pump selection:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>U.S. EPA 316(b):<\/strong> Requires cooling water intake structures to minimize environmental impact<\/li>\n\n\n\n<li><strong>EU Water Framework Directive:<\/strong> Regulates brine discharge into coastal waters<\/li>\n\n\n\n<li><strong>Local regulations in the Middle East and Australia:<\/strong> Increasingly stringent brine concentration limits for discharge<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">ZLD (Zero Liquid Discharge) systems are becoming mandatory in many regions, requiring pumps capable of handling brine concentrations exceeding 200,000 ppm TDS \u2014 a duty that demands <strong>2507 super duplex or titanium materials<\/strong> et <strong>DF series multistage architecture<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">11. Conclusion and Expert Support<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Selecting the right desalination brine pump requires evaluating four interconnected factors:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Material grade<\/strong> \u2014 match to chloride concentration, temperature, and particle content<\/li>\n\n\n\n<li><strong>Pump architecture<\/strong> \u2014 single-stage CYH for intake\/low-pressure; multistage DF for high-pressure brine transport<\/li>\n\n\n\n<li><strong>Syst\u00e8me d'\u00e9tanch\u00e9it\u00e9<\/strong> \u2014 API 682 flush plan selection is critical for brine service reliability<\/li>\n\n\n\n<li><strong>TCO<\/strong> \u2014 higher material upfront cost is offset by extended service life and energy savings<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u00c0 propos de Changyu Pump<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Avec <strong>20+ years of OEM\/ODM experience<\/strong>, <strong>ISO 9001, CE, and ATEX certifications<\/strong>, et <strong>over 50 patented technologies<\/strong>, Changyu Pump specializes in corrosion-resistant pump solutions for the most demanding fluid handling applications. Our 20,000 m\u00b2 factory produces 20,000+ pumps annually for clients across 30+ countries.<\/p>\n\n\n<style>.kb-image7165_3dace9-f3 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image7165_3dace9-f3 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"563\" src=\"https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/changyu-pump.webp\" alt=\"\" class=\"kb-img wp-image-6957\" srcset=\"https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/changyu-pump.webp 1000w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/changyu-pump-300x169.webp 300w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/changyu-pump-150x84.webp 150w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/changyu-pump-768x432.webp 768w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/changyu-pump-18x10.webp 18w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Send us your operating parameters for a customized pump recommendation within 24 hours:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Flow rate and head required<\/li>\n\n\n\n<li>Medium composition (chloride concentration, temperature, pH)<\/li>\n\n\n\n<li>Particle content (if any)<\/li>\n\n\n\n<li>Duty cycle and installation conditions<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udce7 <strong>Courriel :<\/strong> <a href=\"mailto:jade@changyupump.com\">jade@changyupump.com<\/a><br>\ud83d\udcde <strong>Phone\/WhatsApp\/WeChat:<\/strong> +<a href=\"https:\/\/wa.me\/8613651913727\" data-type=\"link\" data-id=\"https:\/\/wa.me\/8613651913727\" target=\"_blank\" rel=\"noopener\">86-13651913727<\/a><br>\ud83c\udfed <strong>Factory:<\/strong> Intersection des routes Xuanzhi et Fuxing, Yangtze River Delta Integrated Intelligent Manufacturing Base, Jingxian Development Zone, Xuancheng City, Anhui Province, China<\/p>\n\n\n<div class=\"wp-block-kadence-advanced-form wp-block-kadence-advanced-form1246-cpt-id kb-adv-form-label-style-normal kb-adv-form-input-size-standard kb-form-basic-style\"><form id=\"kb-adv-form-1246-cpt-id\" class=\"kb-advanced-form\" method=\"post\" action=\"\">\n<style>.kb-row-layout-id16_395842-3c > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id16_395842-3c > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id16_395842-3c > .kt-row-column-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:var(--global-kb-gap-md, 2rem);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;grid-template-columns:repeat(2, minmax(0, 1fr));}.kb-row-layout-id16_395842-3c > .kt-row-layout-overlay{opacity:0.30;}@media all and (max-width: 1024px){.kb-row-layout-id16_395842-3c > .kt-row-column-wrap{grid-template-columns:repeat(2, minmax(0, 1fr));}}@media all and (max-width: 767px){.kb-row-layout-id16_395842-3c > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id16_395842-3c alignnone wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-2-columns kt-row-layout-equal kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top\">\n<style>.kadence-column16_3a38e5-5d > .kt-inside-inner-col,.kadence-column16_3a38e5-5d > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column16_3a38e5-5d > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column16_3a38e5-5d > .kt-inside-inner-col{flex-direction:column;}.kadence-column16_3a38e5-5d > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column16_3a38e5-5d > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column16_3a38e5-5d{position:relative;}@media all and (max-width: 1024px){.kadence-column16_3a38e5-5d > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column16_3a38e5-5d > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column16_3a38e5-5d\"><div class=\"kt-inside-inner-col\"><div class=\"kb-adv-form-field kb-adv-form-text-type-input kb-adv-form-infield-type-input kb-field124600b147-f8 wp-block-kadence-advanced-form-text\"><label class=\"kb-adv-form-label\" for=\"field124600b147-f8\">Nom<\/label><input name=\"field00b147-f8\" id=\"field124600b147-f8\" data-label=\"Name\" type=\"text\" placeholder=\"\" value=\"\" data-type=\"text\" class=\"kb-field kb-text-field\" data-required=\"no\" \/><\/div><\/div><\/div>\n\n\n<style>.kadence-column16_be3802-0b > .kt-inside-inner-col,.kadence-column16_be3802-0b > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column16_be3802-0b > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column16_be3802-0b > .kt-inside-inner-col{flex-direction:column;}.kadence-column16_be3802-0b > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column16_be3802-0b > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column16_be3802-0b{position:relative;}@media all and (max-width: 1024px){.kadence-column16_be3802-0b > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column16_be3802-0b > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column16_be3802-0b\"><div class=\"kt-inside-inner-col\"><div class=\"kb-adv-form-field kb-adv-form-text-type-input kb-adv-form-infield-type-input kb-field124648086d-59 wp-block-kadence-advanced-form-email\"><label class=\"kb-adv-form-label\" for=\"field124648086d-59\">Courriel<span class=\"kb-adv-form-required\">*<\/span><\/label><input name=\"field48086d-59\" id=\"field124648086d-59\" data-label=\"Email\" type=\"email\" placeholder=\"\" value=\"\" data-type=\"email\" class=\"kb-field kb-email-field\" data-required=\"yes\" required aria-required=\"true\"\/><\/div><\/div><\/div>\n\n<\/div><\/div>\n\n<div class=\"kb-adv-form-field kb-adv-form-text-type-input kb-adv-form-infield-type-input kb-field124697066f-d3 wp-block-kadence-advanced-form-text\"><label class=\"kb-adv-form-label\" for=\"field124697066f-d3\">Whatsapp\/t\u00e9l\u00e9phone<\/label><input name=\"field97066f-d3\" id=\"field124697066f-d3\" data-label=\"Whatsapp\/Phone\" type=\"text\" placeholder=\"\" value=\"\" data-type=\"text\" class=\"kb-field kb-text-field\" data-required=\"no\" \/><\/div>\n\n<div class=\"kb-adv-form-field kb-adv-form-text-type-input kb-adv-form-infield-type-input kb-field1246ae3276-7e wp-block-kadence-advanced-form-textarea\"><label class=\"kb-adv-form-label\" for=\"field1246ae3276-7e\">Message<span class=\"kb-adv-form-required\">*<\/span><\/label><textarea name=\"fieldae3276-7e\" id=\"field1246ae3276-7e\" rows=\"4\"  data-label=\"Message\" placeholder=\"\" data-type=\"textarea\" class=\"kb-field kb-textarea-field\" data-required=\"yes\" required aria-required=\"true\"><\/textarea><\/div>\n\n<style>ul.menu .kb-submit-field .kb-btnd4ade1-86.kb-button{width:initial;}.kb-submit-field .kb-btnd4ade1-86.kb-button{background:var(--global-palette1, #3182CE);}.kb-submit-field .kb-btnd4ade1-86.kb-button:hover, .kb-submit-field .kb-btnd4ade1-86.kb-button:focus{background:var(--global-palette2, #2B6CB0);}.kb-submit-field.kb-fieldd4ade1-86{justify-content:flex-start;}<\/style><div class=\"kb-adv-form-field kb-submit-field kb-fieldd4ade1-86 wp-block-kadence-advanced-form-submit\"><button class=\"kb-button kt-button button kb-adv-form-submit-button kb-btnd4ade1-86 kt-btn-size-standard kt-btn-width-type-auto kb-btn-global-inherit kt-btn-has-text-true kt-btn-has-svg-false wp-block-button__link\" type=\"submit\"><span class=\"kt-btn-inner-text\">Soumettre<\/span><\/button><\/div>\n<input type=\"hidden\" name=\"_kb_adv_form_post_id\" value=\"1246\"><input type=\"hidden\" name=\"action\" value=\"kb_process_advanced_form_submit\"><input type=\"hidden\" name=\"_kb_adv_form_id\" value=\"1246-cpt-id\"><input type=\"hidden\" name=\"trp-form-language\" value=\"fr\"\/><\/form><\/div>","protected":false},"excerpt":{"rendered":"<p>Key Takeaways 1. What Is a Desalination Brine Pump? A desalination brine pump is a specialized fluid&#8230;<\/p>","protected":false},"author":2,"featured_media":7175,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[12],"tags":[],"class_list":["post-7165","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"taxonomy_info":{"category":[{"value":12,"label":"Blog"}]},"featured_image_src_large":["https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Desalination-Brine-Pump-How-to-Choose-the-Right-Material-Pump-Type.webp",1000,750,false],"author_info":{"display_name":"Changyu_","author_link":"https:\/\/changyupump.com\/fr\/author\/changyu_\/"},"comment_info":0,"category_info":[{"term_id":12,"name":"Blog","slug":"blog","term_group":0,"term_taxonomy_id":12,"taxonomy":"category","description":"","parent":0,"count":194,"filter":"raw","cat_ID":12,"category_count":194,"category_description":"","cat_name":"Blog","category_nicename":"blog","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/changyupump.com\/fr\/wp-json\/wp\/v2\/posts\/7165","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/changyupump.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/changyupump.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/changyupump.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/changyupump.com\/fr\/wp-json\/wp\/v2\/comments?post=7165"}],"version-history":[{"count":15,"href":"https:\/\/changyupump.com\/fr\/wp-json\/wp\/v2\/posts\/7165\/revisions"}],"predecessor-version":[{"id":7184,"href":"https:\/\/changyupump.com\/fr\/wp-json\/wp\/v2\/posts\/7165\/revisions\/7184"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/changyupump.com\/fr\/wp-json\/wp\/v2\/media\/7175"}],"wp:attachment":[{"href":"https:\/\/changyupump.com\/fr\/wp-json\/wp\/v2\/media?parent=7165"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/changyupump.com\/fr\/wp-json\/wp\/v2\/categories?post=7165"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/changyupump.com\/fr\/wp-json\/wp\/v2\/tags?post=7165"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}