butterfly valves

Performance Features • Inflatable seat compensates for disc and seat wear • Longer valve life • Minimal seat wear • Ultra-low torque requirements • Lower actuator costs • More seal contact area • Proven excellent for abrasive • Disc designed to prevent material build-up • Double shaft seals • Triple bearings • Fail-safe monitoring Less friction, less wear, longer life. Posi-flate's new butterfly valve with an in- flatable seat is a dramatic breakthrough over conventional butterfly valves for dry solids processing. The seat design is the secret to longer life in two critical ways. It has only...

designed for easy actuator mount- various valve sizes. ring simplifies bearing and seal removal and ensures positive bearing retention. substantially reduce operating friction and torque requirements contact, thus preventing shaft D. SHAFT SEALS—Double U-cup shaft seals with backup ring insures positive sealing under the most adverse conditions. E. AIR INLET PORT—Over-sized inlet port allows quick valve pressurization/ F. DISC/SHAFT—Integral stainless steel disc and shaft with smooth, contoured surfaces provides minimum resistance to flow and reduces material build-up. steel shaft can be easily...

Temperature limits: vary with materials of Air supply: 115 PSIG maximum to seat Working pressure: 100 PSIG maximum Single-housing design with disc and shaft. Split-housing design with integral disc and butterfly valves 1125 Willow Lake Blvd. Available Materials of Construction Housing: Ductile iron. Resilient Seat: Polyurethane, Disc: Cast ductile iron, cast 316 stainless steel (satin finish or polished finish). Disc Screws: Zinc-plated carbon steel, stainless steel. Bearings: Nylon, bronze. Seal Insert: Nylon. Shaft: Zinc-plated carbon steel. Shaft Seal: Buna-N. Housing Gasket: Buna-N (Series...