Bray Series-20,21 Resilient Seated Butterfly Valve

Manufacturer: Bray

The Series 20/21 resilient seated butterfly valve surpasses the high standards required in sanitary valve applications, and inherent flow characteristics and capabilities. Bray's Series 20 valve is a wafer version with flange locating holes, and the Series 21 is the companion lug version for dead-end service and other flange requirements.

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Features Applications Model Document

Non-corrosive, heavy duty acetal bushing absorbs actuator side thrust.
Double "U" cup seal design is self-adjusting and gives positive sealing in both directions and prevents external substances from entering the stem bore.
One-piece design. The disc edge is spherically machined and hand polished to produce a bubble-tight shutoff, minimum torque, and longer seat life. The disc/stem design inherently provides complete protection from particle entrapment and bacterial decay, protection that is required for sanitary performance.
These seals prevent line media from coming in contact with the stem or body.
Bray's tongue and groove seat design lowers torque and provides complete isolation of flowing media from the body.
Two-piece wafer or lug style allows for ease of assembly and maintenance. Nylon 11 coating for excellent corrosion resistance is standard for 1"-8" valves and available on larger sizes upon request. Polyester coating is standard for 10"-20" bodies.

Sanitary & Chemical applications
Sanitary Service, Mildly Corrosive, Toxic Media

Mfr. Part No.	Description

Bray Series-20,21 Resilient Seated Butterfly Valve

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