China EPDM Butterfly Valve Manufacturer | API 609 Butterfly Valve Manufacturer

Who is the top butterfly valve manufacturer in China? In this blog, you will learn about the well-known butterfly valve manufacturers in China to help you choose the right one for your application.

We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate in our success for Epdm Butterfly Valve, Check Valve Price, Butterfly Valve Stainless Steel, Wafer Type Pinless Backed Seat Butterfly Valve,Soft Sealed Butterfly Valve.

ZECO Valve is a specialized supplier and manufacturer specializing in butterfly valve design, production and export business, focusing on the valves and fittings for the control and protection of drinking water, wastewater, irrigation, pump station, HVAC…

ZECO Valve has a wide range of butterfly valves, gate valves, globe valves, and check valves, our top selling valves include: gate valves F4, 10K, 125LB, PN16, 150LB, 300LB; globe valve 10K, 150LB, 300LB, and bellow seal globe PN16, PN40, butterfly valves no pin and with pin wafer universal standard, eccentric butterfly valves, high-performance butterfly valves, etc. Valve size ranges from 1″ to 60″.

China EPDM Butterfly Valve

  • Series: Cost effective Series Resilient Seat Butterfly Valve
  • Port Size: DN32-DN2400(NPS1 1/4-NPS96)
  • Pressure: PN6, PN10, PN16(Class 150)
  • Temperature: -29℃ ~ +120℃
  • Body: Ductile Iron: GGG40
  • Seat: NR, NBR, EPDM, Viton, Silicone Rubber
  • Disc/Trim: Epoxy Coated Ductile Iron,SS316,SS304,Duplex Stainless Steel,Al Bronze
  • Stem: SS316,SS304,SS420,SS416
  • Connection: Wafer, Lug, U-type flange
  • Certificate: CE ,WRAS,API,ISO9001:2015,OHSAS18001:2007
  • Application: water,power plant,HVAC,Food,Medicine,Desalination

Types of Butterfly Valves

Based on the type of ends of the body butterfly valves are available in following types.

  • Both Flanged Ends
  • Wafer Type Ends
  • Lug Type Ends
  • Butt Welded Types Ends

Wafer Butterfly Valve

Wafer concentric butterfly valve features a cartridge type seat, streamlined disc and strong stem-to-disc connection for easy use in many industrial applications such as food and beverage, pulp and paper, chemical, mining, water treatment, power plants, etc.

Lug Butterfly Valve

This type of design has lugs attached to the valve body. Dead end connections are the common uses for this type of butterfly valve.

What is API 609 A Butterfly Valve?

API 609 is the American design standard forbutterfly valves, which is divided into Category A and B.

Category A valves are “concentric” type. Also known as rubber lined butterfly valves. These are popular in low pressure systems (Class 150 or less), relatively lower cycle life, rubber liners are also good for abrasive slurry services.

Category B valves are “offset” type, meaning the shaft is offset from the disc, so they can handle higher differential pressures. Most of the offset types cause the disc to rotate freely from the seat after a few degrees of rotation, which minimizes seat wear and increases valve cycle life. The offset type can have rubber, polymer (PTFE or other), metal &graphite, or even metal seats. Lots of variety which makes these suitable for a variety of temperatures and pressures.

ZECO Valve, based on the high-quality products, specialized international business teams, and specialized technical teams, has been well used in over 45 regions and countries, such as Russia, the UK, Italy, Spain, Romania, North African Countries, South Africa, Zambia… established stable and very good relationship with our partners and customers.

For more information on top butterfly valve manufacturers in China, please contact ZECO today.

About Me

ZECO Valve is established in 1991, as a professional industrial valve manufacturer and water valve manufacturer in Shanghai, China.


Tel : 0086 - 21 -5959 9008