Soft seal gate valve of large diameter

Design standard :CJ/T3056
Flange :GB/T17241.6-1998 eq DIN2501
Face to face dimensions: DIN3202(equal to ISO5752)
Testing standard:CJ/T3055
Working temperature:NBR ?80?

Technical characteristics:
Testing standard CJ/T3055
Nominal pressure 0.4Mpa 0.6Mpa
Strength testing Hydraulic 0.8Mpa 1.2Mpa
Air 0.6Mpa 0.9Mpa
Functional testing Air 0.44Mpa 0.66Mpa

Main components and their materials:
No. Name Material
1 Body /bonnet QY500-7
GGG50with internal and external epoxy resin coating
2 Wedge GGG50with NBR
3 Stem Stainless steel
4 Stem nut,bushing D2
5 Washer ,O-Ring NBR



Soft seal gate valve of large diameter