Stainless Steel Butterfly Valves
Series 486

Design features for reliable performance

A. ACTUATOR MOUNTING FLANGE: Flange is designed for direct actuator mounting.

B. BEARINGS: Multiple bearings substantially reduce operating friction and torque requirements eliminating any metal-to-metal contact, thus preventing shaft galling and freezing.

C. SHAFT SEALS: O-ring shaft seals insure positive sealing under the most adverse conditions.

D. SEAT O-RING SEAL: O-ring provides long lasting positive seal of seat inflation pressure.

E. MATERIAL SEAL: Land seal prevents material contamination of seat o-ring seal.

F. AIR INLET PORT: Oversized inlet port allows quick valve pressurization/
depressurization.

G. DISC/SHAFT: Integral disc and shaft with smooth, contoured surface provides minimum resistance to flow and reduces material buildup.

H. SPLIT HOUSING: Rugged two-piece body fits standard 125/150 class ANSI flat-faced flanges and PN 10 metric flanges. Minimizes assembly time and allows for integral shaft and disc.

I. HOUSING GASKET: Die cut elastomeric gasket assures leakproof housing. J. HOUSING BOLTS: High strength steel bolts maintain structural integrity of housing under the most adverse conditions. K. RESILIENT SEAT: Easily replaceable, the inflatable molded seat has a smooth contour locking design to minimize stress and hold the seat in place, eliminating any need for flange gaskets.

 
Stainless Steel Butterfly Valves
Series 486
Bulletin - English