Centric Wafer Butterfly Valve

Technical Attributes

1,Design Standard,API 609 / EN 593 / BS 5155

2,Body Type,"Wafer Style (Compact, lightweight design)"

3,Disc Design,Centric (Concentric) / Symmetrical Disc

4,Pressure Rating,PN10 / PN16 / Class 150

5,Size Range,DN40 to DN1200 (Standard industrial sizes)

6,Face-to-Face,API 609 Table 1 / EN 558 Series 20 / ISO 5752

7,Body Material,Ductile Iron (GGG40/50) or Cast Iron (GG25)

8,Disc Material,SS304 / SS316 / Al-Bronze / Ductile Iron (Nylon coated)

9,Seat (Liner),Replaceable or Vulcanized Resilient Seat

10,Seat Material,EPDM (Water) / NBR (Oil) / Viton (Chemicals)

11,Stem Material,Stainless Steel (SS410 / SS416 / SS420)

12,Stem Design,One-piece or Two-piece (Stub shaft) design

13,Shaft Sealing,O-ring sealing to prevent leakage to atmosphere

14,Testing Standard,API 598 / EN 12266-1

15,Flange Mounting,Universal drilling (Multi-standard for PN10/16/CL150)

16,Top Flange,ISO 5211 (Direct mount for actuators)

17,Operation,Lever (Handle) / Worm Gear / Pneumatic / Electric

18,Tightness Class,Class VI (Bubble-tight shut-off)

19,Temperature,−15°C to +120°C (Varies by seat material)

20,Coating,"Epoxy Powder Coating (RAL 5000 series), Min. 200 microns"

21,Flow Direction,Bi-directional sealing capability