Standard and Specification

Design standard   Face to face   Flanges standard   Working temperature   Suitable mudium
SABS669           SABS669     Socket to PVC pipe and      -20℃--120℃      Water
EN558                            Cast iron pipe                             Steam
                                                                            Oil                                     Main parts materials

Body     Bonnet    Disc        Stem    Stem nut    Gasket
GGG40    GGG40   GGG40/GGG50  2Cr13    Brass         NBR                              
GGG50    GGG50     with       SS304                  EPDM                  
                 NBR/EPDM     SS316                  
    

check valve manufacturers check valve manufacturers
DIN3202-F6 check valve DIN3202-F6 check valve
BS5153 check valve BS5153 check valve
ansi swing check valve ansi swing check valve