Factory Price SS304 / Brass Body Disc Seat Spring Cover High Pressure Wafer Lift Check Valve, 20 Inch 316 Ss Dual Door Double Plate Wafer Flanged Check Valve

Factory Price SS304 Body Disc Seat Spring Cover High Pressure Wafer Lift Check ValveName1-Body2-Stem3-Spring4-Disc5-SeatMaterialDI304304CF8EPDM FEATURES• The innovative dual-plate design employs two spring-loaded plates suspended on a central vertical hinge as flow begins, the plates open in response to a resultant force Which acts at the center of the sealed surface area • The contact point of the reacting spring leg's force acts beyond the center of the plate area,causing the heel to pen first.This prevents rubbing of the seal surface prior to normal plate opening • As the velocity of flow decreases, torsion spring action reacts automatically. The moves of plates closer to the body seats, reducing the distance and time of travel for closure. By Having the plates closer to the body seats at the time of flow reversal.the valve dynamic response is greatly enhanced.This dramatically reduces the water hammer effect • At closing, the point of spring force causes the plates to close first. This prevents dragging of the heels of the plates and periods maintains seal integrity for much longer periodsAPPLICATIONSSteam, superheated water, hot water, cold water, fluids without acidity or alkalinity properties,chemicalsTechnical ParametersNominal diameter(mm)50~90050~900Nominal pressure(Mpa) 1.0 1.6Testing pressureShell(Mpa)1.52.4Seal(Mpa)1.11.76Suitable temperature(°C)-40°C~200°CSuitable mediumDrinking water,sewage,seawater,food,medicines,gas,oil and acid Main Raw MaterialBodyDiscStemSeatSpringCast ironPlated ductile ironStainless steelEPDM/NBRSS304Ductile ironCF8WRAS-EPDMSS316Carbon steelCF8MViton Stainless steelAluminum bronzecustomisedSilicon PS:Vulcanized seat Reference StandardDesign standardAPI 594Testing standardAPI 598End flange standardDIN PN10 / PN16,ANSI 125# / 150#,BS4504 PN10 / PN16Face to face standardAPI 594 Overall Dimension and Weight  SizeΦDΦD1LWeight(kg)DIN PN10DIN PN16ANSI150#ANSI 125#ASNI 150#DN501071071046554601.75 DN651271271237860672.29 DN801421421369467733.00 DN10016216217411767735.00 DN12519219219614583837.00 DN15021821822217195989.50 DN20027327327922412712718.53 DN25032832934027614014631.00 DN30037838441033818118152.00 DN35043844445137518418470.00 DN400489495514416191191101.00 DN450539555549467203203119.00 DN500594617606514213219139.00 DN600695734717616222222205.00 DN700810804831720305305370.00DN750  883770305305420.00 DN800917911940825305305480.00 DN900101710111048925368368630.00 PRODUCT FEATURE Other productsWhy Choose USOur factory is specialized in valves' production. As one of the biggest and most professional manufacturer and exporter majored in valves, we assure that we can provide our products with cheapest price, good quality and best service. If you like, welcome to our factory and have a look!We test leakage of each roll before braiding, then we cut 300mm and crimp it to testburst pressure after brading.We use CNC Lathes Machine for end fittings production. Machine system, knife and inspectiontools are all imported from Japan.We use Techmaflex Crimping Machine which is imported from France. This machine hasaccurate and stable performance for crimping because it is produced for PTFE hose crimping only.Contact to this supplier  /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1