Product DescriptionMain structure and their materials
:Bady /Cover Material:QT500-7,GGG50 with internal and
external epoxy resin coatingDisc Material:GGG50 with
NBR,EPDMFlange washer
Material:NBR,EPDM,FPMTechnical
data:Design standard: AWWA C508Flange standard:
EN1092-2/GB17241.6 Face to face dim:EN5752
serie10/GB12221 Testing standard:
EN1074-2/EN12266-1/GB13927 Body: GGG50/GJS500-7 Sealing:
Rubber DN: 50~600 PN:1.6Mpa Working
temp.: NBR ≤80ºC/EPDM≤120ºC Drive
Mode: Damper Connecting:Flange Coating: EpoxySwing
check valveFeatures:The discs tightly cover the rubber with no iron
exposed.The media are pledged clear and pure.The rubber-coating
layer of the discs is added with durable nylon cord fabrics and
soft mental cord fabrics,which greatly improves the
discs' capacities of enduring flexing and stretch when
unlocked or closed,meanwhile,prolongs service
life. When in the state of closedness,the discs
form a certain angle with the flowing
direction. The through-holes of the base and the
discs are all oval while the flowing channel is
straight-through.Therefore,the closed angle is relatively
small,which decreases phenomenas of the water hammer, as a
result,effectively secures the valve.Application:The two kinds of
valves are widely used in heating systems and industrial water
supply and drainage systems Detailed Photos /*
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
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