585, 586
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Inf latable Seated Butterf ly Valves HEAVY DUTY SERIES

Less friction, low torque, less wear, longer life. Posi-ate’s unique buttery valve design uses air pressure to expand the seat against the disc, providing even pressure distribution for a bubble-tight seal, every time. Because the seat makes only casual contact with the disc during valve opening and closing, there is minimal disc impingement. This is in contrast to conventional buttery valves where disc impingement leads to shaving of the seat, decreasing the overall performance and valve life. Substantially less torque is required to open and close the Posi-ate buttery valve, thus a...

Design features for reliable performance A. ACTUATOR MOUNTING FLANGE: Flange is designed for direct actuator mounting. RETAINING RING: Retaining ring simplies bearing and seal removal and ensures positive bearing retention. BEARINGS: Multiple bearings substantially reduce operating friction and torque requirements, eliminating any metal-to-metal contact, thus preventing shaft galling and freezing. SHAFT: Corrosion resistant, high strength steel shaft is easily replaceable. SHAFT SEALS: O-ring shaft seals insure positive sealing under the most adverse conditions. SEAT O-RING SEAL: O-ring...

Normal Torque (Inch Pounds) Approx. Weight (Pounds) Posi-ate Buttery Valve Series 585 and 586 Dimensions* (Inches) * Series 585 available in 4" (100 mm) to 24" (600 mm). Series 586 available in 2" (50 mm) to 24" (600 mm). Temperature limits: -40° to 350° F (-40° to 175° C), varies with application and materials of construction. Air supply: 135 psig (9.3 bar) maximum to seat, varies with materials of construction and application. Working pressure: Full vacuum to 150 psig (10.3 bar) depending on materials of construction and application. Operating torque: Varies with application. 585 Single...