Ductile Iron Swing Check Valve BS DIN3202-F6

Main structure  and  their materials :

Bady /Cover  Material:QT500-7,GGG50 with internal and external epoxy resin coating

Disc  Material:GGG50 with NBR、EPDM

Flange washer      Material:NBR,EPDM,FPM

Technical data:

Design standard: AWWA C508

Flange 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 ≤80℃/EPDM≤120℃

Drive Mode: Damper

Connecting:Flange

Coating: Epoxy

Swing check valve

Features: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