What is EPDM Butterfly Valve?

EPDM is the abbreviated name for Ethylene Propylene Diene Monomer. In general industry, one may see other abbreviations or trade names used in lieu of EPDM such as EPT, Nordel, ECD, or EPR. All of these are the same materials as EPDM. EPDM is a standard seat material offered in Bray resilient-seated butterfly valves.

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Specifications of EPDM Butterfly Valve

Design Standard	EN 593, MSS SP67   API 609  BS5155
Inspection & Test	API 598  ISO 5208  EN 12266
End Standard	ANSI B16.1 CL. 125LB & B16.5 CL. 150LBAS 2129 Table D & E   BS 10 Table D & EDIN 2501 PN6, PN10 & PN16EN 1092 PN6, PN10 & PN16ISO 2531 PN6, PN10 & PN16ISO 7005 PN6, PN10 & PN16KS B 1511 / JIS B 2210 5K & 10KMSS SP44 CL. 150LB  AWWAC207SABS 1123 Table 1000/3 & Table 1600/3
Face to Face	ISO 5752, EN 558, MSS SP67, and API 609  DIN3202
Top Flange	ISO 5211

Types of China EPDM Butterfly Valve

• Wafer Butterfly valves
  • Equipped with a tightly fitting seal, o ring, and a flat valve face, Wafer Butterfly valves have good control of flow, which assures unidirectional flow.
• Flanged Butterfly valves
  • These Flanged Butterfly valves with flanges on both ends. The flange ends connect with the flanges on the pipeline by bolts.
• Lug-Style Butterfly valves
  • A Lug-Style Butterfly valve has the function of reducing pressure rating.
• Welded Butterfly valves
  • Butt Weld Butterfly valves and Socket Weld Butterfly valves are two commonly used Welded Butterfly valves. These kinds of valves are of the enclosed type, helping to both on-off and regulate service.

Parts of EPDM Butterfly Valve

Parts	Material
Body	Cast iron, Ductile iron, WCB
Seat	EPDM, NBR, VITON, PTFE
Disc	Nickel ductile iron, AI bronze, Stainless Steel
Stem	Stainless Steel, Monel
Bushing	PTFE
“O” ring	PTFE
Pin	Stainless Steel
Key	Stainless Steel

Advantages of EPDM Butterfly Valve

Butterfly valves are similar to ball valves but have more advantages. They are open and close very quickly when actuated pneumatically. The disc is lighter than a ball, and the valves require less structural support than a ball valve of comparable diameter. Butterfly valves are very precise, which makes them advantageous in industrial applications. They are quite reliable and require very little maintenance.

1. Turning on/off easily and rapidly with less force. Having less fluid resistance and can be operated frequently.
2. Simple structure, small size, and short face-to-face dimension, which are suitable for large-diameter valves.
3. It can be used for transmitting mud, fewer liquids are stored at the apertures of the pipe.
4. Long service life. Standing the test of tens of thousands of opening/closing operations.
5. Butterfly valves have excellent regulation performance.
6. Small torque. The pressure on discs at the two sides of the spindle is almost equal, causing contrary torque. Thereby, the valves can be opened with less force.
7. A sealing face is generally made of rubber or plastic. So the butterfly valves can be with good sealing under low pressure.

EPDM Butterfly Valve – China Manufacturers, Factory, Suppliers

We’ll make each hard work to become excellent and excellent, and speed up our measures for standing from the rank of intercontinental top-grade and high-tech enterprises for Epdm Butterfly Valve, Rubber Lined Double Flange Butterfly Valve, Butterfly Valve Wafer, Electric Actuator Butterfly Valve, Lug Support Butterfly Valve. We warmly welcome friends from all walks of existence to cooperate with us. The product will supply to all over the world, such as in Europe, America, Australia, Zurich, Mexico, Greece, and Azerbaijan. We have top engineers in these industries and an efficient team in the research. What is more, we have our own archives mouths and markets in China at a low cost. Therefore, we can meet different inquiries from different clients. Please find our website to check more information about our products.