A Wafer Centric Butterfly Valve for Natural Gas is a specialized quarter-turn valve designed for the safe isolation and regulation of gas flow in low to medium-pressure pipelines. Unlike standard water valves, these are engineered with specific materials and certifications (such as EN 161, DVGW, or API 607) to handle the volatile and dry nature of fuel gases like natural gas, methane, and LPG.
Technical Attributes
1,Design Standard,API 609 / EN 593 / BS 5155
2,Size Range,"DN40 to DN600 (1.5"" to 24"")"
3,Body Type,Wafer (Semi-Lug or Universal alignment holes)
4,Pressure Class,PN10 / PN16 / Class 150
5,Seat Material,Gas-Grade NBR (Buna-N) / Viton / FKM
6,Body Material,Ductile Iron (GGG40/50) / ASTM A536
7,Disc Material,Stainless Steel (CF8 / CF8M) or Nylon-coated DI
8,Stem Material,Stainless Steel SS410 / SS416 / SS420
9,Stem Sealing,Dual O-ring system (NBR/FKM)
10,Safety Feature,Anti-Static Device (Spring & ball ground)
11,Certification,DVGW / EN 161 / API 607 (Optional Fire Safe)
12,Face-to-Face Dim.,EN 558 Series 20 / ISO 5752 / API 609
13,Top Flange,ISO 5211 (For direct mounting of actuators)
14,Operation,Yellow Lever / Gearbox / Pneumatic Actuator
15,Coating,"Fusion Bonded Epoxy (FBE), Yellow or Blue"
16,Flange Connection,Universal (PN10 / PN16 / ANSI 150)
17,Tightness Class,API 598 / EN 12266-1 Rate A (Zero Leakage)
18,Working Temp.,−20°C to +80°C (NBR Standard)
19,Shaft Design,"One-piece or ""Stub"" shaft (Blow-out proof)"
20,Bushings,PTFE / Bronze (Low friction)
21,Applicable Media,"Natural Gas, Methane, LPG, Coal Gas"
Contact: Jorge Yang
Phone: +86-13588258503
E-mail: sales@fluvalve.com
Whatsapp:+86-13588258503
Add: Room 331, South Building,Building 1, No.3 Jinpeng Street, Sandun Town, Xihu District, Hangzhou City, Zhejiang Province
