For neutral or mildly corrosive liquids like seawater, fresh water, and sewage, the Rubber seated butterfly valve offers the best balance of sealing performance and cost. Our valve features a high-quality EPDM or NBR liner molded directly to the internal body, creating a seamless barrier that protects the metal from the media. The disc-to-seat interference fit provides a bubble-tight, zero-leakage seal even at low pressures. The Rubber seated butterfly valve is incredibly durable, and our streamlined disc design-available in nickel-plated DI or stainless steel-minimizes turbulence and flow resistance, making it ideal for high-capacity water distribution.

At our Soho facility, we operate a dedicated rubber vulcanization shop. Unlike small workshops that manually brush on coatings, we use high-temperature pressure molding to ensure the liner is perfectly bonded to the body without air pockets. This significantly extends the life of our Rubber seated butterfly valve in demanding municipal projects. We also offer a replaceable seat design, allowing you to refurbish the valve without replacing the entire body, which drastically reduces long-term maintenance costs. All our Rubber seated butterfly valve units are 100% spark-tested to ensure no pinholes exist in the lining, guaranteeing reliability for your desalination or water treatment project.

Technical Specifications

Lining Material: EPDM, NBR, Viton, Hypalon

Body Material: Ductile Iron (GG25/GG50)

Disc Material: SS304, SS316, Al-Bronze, Nylon Coated DI

Pressure Rating: PN10, PN16

End Connection: Wafer, Lug, Flanged

Application Areas

Widely used in municipal water supply, desalination plants, marine ballast systems, sewage treatment, and irrigation networks.

Factory Customization & OEM

We provide full OEM/ODM services for the Rubber seated butterfly valve, including custom epoxy coating colors and thickness (up to 300μm). We can provide chemical-resistant (EPDM/NBR) certificates upon request.

Quality Control & Packaging

We use anti-compression supports during packaging to prevent the rubber seat from deforming during transit. All valves are shipped in plywood crates with moisture-proof protection.