What kind of butterfly valves can we supply?

As one of the most professional manufacturers in China, we design and manufacture for years.

Cast Iron Butterfly Valve, Cast Carbon Steel Butterfly Valve, Cast Stainless Steel Butterfly Valve, Rubber lined Butterfly Valve, P.T.F.E. lined Butterfly Valve, Wafer Type Butterfly Valve, High Performance Butterfly Valve, Center Disc Butterfly Valve, Off-Set Disc Butterfly Valve, Gear operated Butterfly Valve, Pneumatic operated Butterfly Valve, Electrical operated Butterfly Valve, Zero Leakage Butterfly Valve, Double Flange Type Butterfly Valve, Bi-directional Butterfly Valve.

Butterfly Valve Features:

Concentric, Double Eccentric, Triple Eccentric Design
Excellent Sealing Capacity
Soft Seat / Hard Seat Design
Lower Torque with any fluid
Permanently tight closure
Bi-Directional Valve
Optimum operation under Vacuum Condition
Suitable for On-off as well as Throttling Service
Materials for almost all media
Short / Long Face To Face Dimension
Wafer, Lug, Double Flange, Butt-Weld Design Body
Long Service Life
Smooth, Easy Operation
Maintenance Free Version
Less Weight, Easy To Install

Butterfly Valve Design & Testing International Standard :

Valve Design	API 609, BS 5155, MSS SP-67, EN593, MSS SP-68, GB/T12238, AWWA C504
Pressure Testing	BS 6755-I, API 598, ISO 5208 etc
Face To Face	ANSI B 16.10, API 609, DIN3202-K1, EN558-1 20 Series, BS5155, MSS SP-67 etc
Flange Drilling	ANSI B 16.5, ASNSI B16.47, API 605, AWWA C207, BS 10 Table / DIN / IS / JIS Std.
Pressure Rating	Class 150, Class 300, Class 600, Class 900
Leakage Class	Class VI (Zero Leakage)
Size Range	DN50 to DN3000 (2” to 120”)
Operation	Up to DN200 lever operated, and above gear operated. On special request available for electric, pneumatic and hydraulic operated.

Butterfly Valve Material of Construction:

Body: Cast Iron to ASTM A 126 Class B / HT200 / HT250; Ductile Iron to ASTM A 536 Grade 65-45-12 / GGG40, GGG50; Cast Carbon Steel to ASTM A 216 GR. WCB / A352 LCB / LCC; Stainless Steel to ASTM A 351 GR. CF 8 / 8M / 3 / 3M; Alunium Bronze ASTM A148 B95500, C955800

Disc: Cast Iron to ASTM A 126 Class B / HT200 / HT250; Ductile Iron to ASTM A 536 Grade 65-45-12 / GGG40, GGG50; Cast Carbon Steel to ASTM A 216 GR. WCB / A352 LCB / LCC; Stainless Steel to ASTM A 351 GR. CF 8 / 8M / 3 / 3M; Aluminium Bronze ASTM B 148-C95400; Nylon Coating on C.I. / D.I. / WCB / S.S. Disc Material; EPDM / Neoprene / Hypalon / Nitrile Rubber / Buna-N; Rubber Encapsulated on C.I. / D.I. / WCB / S.S. Disc Material; P.T.F.E. (PFA / FEP) Lined on C.I. / D.I. / WCB / S.S. Disc Material

Seat (Liner): EPDM; EPDM Food Grade; Buna-N; Black Nitrile; Neoprene; Hypalon; Silicon; Viton; P.T.F.E.

Stem: AISI 410 (S.S. 410, 13% Cr. Steel); AISI 304 (S.S. 304); AISI 316 (S.S. 316); AISI 304L (S.S. 304L); AISI 316L (S.S. 316L); 17-4PH, Monel K400 / K500

Test Specification:

Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.
Seat Test: 1.1 times the working pressure with water.
Function / Operation Test
At the time of final inspection, each valve and its actuator (Flow-Control Lever / Gear / Pneumatic Actuator), under goes a complete operating test (Open/Close). This test carried out without pressure and at ambient temperature. It ensures the correct operation of the valve / actuator assembly with accessories such as solenoid valve, limit switches, air filter regulator etc.
Special Test On request, any other test can be carried out according to special instruction by client

Butterfly Valve Applications: Water Treatment Plant, Paper Industry, Sugar Industry, Breweries, Chemical Industry, Waste Effluent Treatment Plant, Drilling Rigs, Gas Plant, Cooling Water Circulation, Heating & Air Conditioning, Pneumatic Conveyors, Compressed Air

Please specify below details while you have enquiries/orders:

1.Types of Valve; 2. Pressure Rating Class; 3. Valve Size; 4. Type of End Connection; 5. Material of Construction; 6. Disc Material; 7. Rubber Seat Material; 8. Flow Medium (Service); 9. Design Pressure; 10. Operating (Working) Pressure; 11. Design Temperature; 12. Operating (Working) Temperature; 13.Type of Operation Manual / Pneumatic / Electric etc.