Inflatable Seated Butterfly Valves Series 435, 436
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Inflatable SERIES 435 456 For DrySolKJs Processing posi-flate butterfly valves

Less friction, low torque, less wear, longer lifc. Posi-llate's ne* butterlly valve with an in-flatable seat is a dramatic breakthrough over conventional butterlly valves tor dry soilds processing. The ses design is the secret 10 longer lile in two critical ways It has only casual contact wilh the dise during valve opening and closing. Il automaticatly compens͢tes lor wear when il inflates againsi ihe dise. Both features substantially prolong valve life. in actuai companson tests the Posi-tlate* butterlly vatve oui pertormed aF other valves tested The unique design also provides a supenor...

Design features for easy maintenance A. CAST FLANGEFlanges are designed for easy actuator mount* ingand nterchangeabOrtybetween vanous valve stzes. a RETAINING RiNGחRetaimng riig simplifies bearing and seal removal and ensures positve beanng rtention C BEARING STriple beanngs substantialiy reduce operating inctwn and torque requirements eliminoting any m闩tal to motol contact. Ihus prevening shaft galling a ne freezing, D.SHAFT SEALS-DojWe U-cup shaft seals with bacKup ring insures positive seahng under the moat adverse ccnditons. E. AIR INLET PORTOver-sized infel port losvs quk* valve...

K is the minimum allowabie pipe or (lange inside diameter. Mintmum pressure cifferertialot 15 PSIG must be maintained between ihe pressure apphec to the seat and the working pressure ot the vahra. Valvi Size Posi-Flate Sries 435-436 Dimensions (Inches) M N Kojf Weight [Pounds) Torque Inch Pounds Min. I Max, H 3 660 576 XN3 *00Q I 250 525 «600 136 Non* «30 *60 97SO 6.500 *ooc &700 SS7 UN 17 300 «50 10675 6313 2 SOC KM 12» rsfl &0C rcoo 7*13 5000 Va Non* 30 MO 700 »A1G 3313 9.300 2 W0 flOOO IJM 5MO nom 1300 L l.KJCJ i tXAJ ■i i rx i li HJ 17.750 12.300 300C &.O0 3.00Q 10050 5.000 JUsq 130...