Rubber Lined Wafer Butterfly Valve

1.Small in size,light in weight,easy to install.It can be mounted wherver needed,suitable for various actuators.
2.Simple,compact structure,quick 90 degree on-off operation.
3.Disc has two-way bearing,perfect seal,zero leakage under the pressure test.
4.Flow curve tending to straight-line.Excellent regulation performance.
5.Vulcanized seat,Good stability,Zero leakage.
6.It is widely used in desulfurization,outdoors.
7.Center plate structure,small torque of open and close.
8.Long service life.Standing the test of 10,000 times opening and closing operation.
9.Can be used in cutting off and regulation medium.
10.Without pin structure,function better.

Size:DN40-DN1200(1.5"-48")
standard:
1.Design standard:BS5155,API609,EN593
2.Test standard:DIN3230 Part3,API598,EN12266-1
3.Face to face standard:DIN3202K1,API609,EN558-1,ISO5752
4.Medium:water,sewage,oil,food,gas and so on.
5.Flange connection:DIN2501 PN10/16,BS4504 PN10/16,ASME B16.1 125LB & 150LB,JISB2220 10K and so on.
6.Working pressure:10 bar/16 bar.
7.Test pressure:
Shell:15bar/24bar
Seal:11bar/17.6bar

                                     Specification
Name           Material                 ASTM
Body          Cast Iron               ASTM A126B
              Ductile Iron            ASTM A536
              Carbon Steel            A216 WCB
              Stainless Steel         A351 CF8M
                                      A351 CF8

Disc          Plated Ductile Iron     ASTM A536
              Aluminum Bronze         B148-95400
              Stainless Steel         A351 CF8M
                                      A351 CF8

Stem          Stainless Steel         A276-410
                                      A276-304
                                      A276-316
Seat          NBR(NITRILE)
              EPDM
              NEOPRENE(CR)
              VITON(FKM)
              NATURAl RUBBER(NR)
              PTFE

Pin           Stainless Steel         A182 F6A
                                      A182 F304
                                      A182 F316
Bushing       PTFE                   
              Bronze                  B62

O-Ring        NBR                    
              EPDM
              VITON