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Bray Controls (UK) Ltd
Drainage & Water Supply ">> Plumbing Fittings > Valves

Series 32/33 & 35/36 Resilient Seated Butterfly Valve

by Bray Controls (UK) Ltd

Series 32/33 & 35/36 Resilient Seated Butterfly Valve

by Bray Controls (UK) Ltd

This butterfly valve series has many of the design features and benefits of the smaller Bray valves, such as high Cv ratings, minimum parts exposed to the line media, greater reliability and a proven record of long service life.
[A] BLOW-OUT PROOF STEM: A retaining ring, installed between the machined stem groove and gland retainer step, provides full retention of the stem in the unlikely event of internal stem failure.
[B] ADJUSTABLE PACKING SYSTEM: Design allows for field adjustment of stem packing without removing manual operators or power actuators. The advanced, self-adjusting V-Type stem packing prevents external substances from entering the upper stem bore.
[C] PRIMARY & SECONDARY SEALS: These seals prevent line media from coming in contact with the stem or body. Primary Seal is achieved by an interference fit of the molded seat flat with the disc hub. Secondary Seal is created because the stem diameter is greater than the diameter of the seat stem hole.
[D] STEM BEARINGS: To absorb actuator side thrust and minimize bearing friction torque, upper and lower heavy wall sleeve bearings are utilized.
[E] VERTICAL THRUST BEARING: A bronze vertical thrust bearing eliminates disc displacement due to the weight of the stem and disc.
[F] BODY: One piece full flanged style. All bodies are drilled to be compatible with ASME 125/150, PN 10 or other international flange standards. Wafer style bodies are also available.
[G] DISC: High strength discs are first cast, the sealing edges are spherically machined then either hand polished or the entire disc is Nylon 11 coated. The symmetrical disc profile increases CV values,reduces turbulence and increases pressure recovery.
[H] SEAT: The replaceable tongue and groove seat to body retention method is the most advanced design in the industry. Molded O-ring eliminates the requirement of flange gaskets. The seat isolates the valve body and stem from line media and has been specifically designed to seal with slip-on or weld-neck flanges.


Series 32/33 & 35/36 Resilient Seated Butterfly Valve

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Specification Details for Series 32/33 & 35/36 Resilient Seated Butterfly Valve (Valves)

Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Bray Controls (UK) Ltd is consulted before specifying.

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File Downloads for Series 32/33 & 35/36 Resilient Seated Butterfly Valve

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