Bray Series-31H Resilient Seated Butterfly Valve

Manufacturer: Bray

Series 31H Lug resilient seated butterfly valves are drilled and tapped to meet ASME Class 125/150 and PN16 flanges. Series 31H Valves will not be automated.

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Features Applications Model Document

Shall be one-piece lug design with extended neck to allow for 2" of piping insulation.
Flange hole drilling per international flange standard as specified.
A non-corrosive bushing and a self-adjusting stem seal shall be provided.No field adjustment shall be necessary to maintain optimum field performance.
Disc edge and hub on metal discs shall be spherically machined and hand polished for minimum torque and maximum sealing capability.
Shall be one-piece design
Disc to stem connection shall be and internal double "D" design with no possible leak paths in the disc-to-stem connection. External disc-to- stem connections such as disc screws or pins are not allowed.
Stem shall be mechanically retained in the body neck and no part of the stem shall be exposed to the line media.
Shall be tongue-and-groove bonded seat with a primary hub seal and a molded flange O-ring suitable for weld-neck and slip-on flanges.
The seat shall totally encapsulate the body isolating it from the line media and no flange gaskets shall be required.

High Pressure, HVAC, Dead-End service

Mfr. Part No.	Description

Bray Series-31H Resilient Seated Butterfly Valve

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