Threaded Ball Valve

Series S51

Reliable 2-Piece Brass Ball Valves for Water, Steam, Oil, and Gas Systems

Request a Quote
Series S51 Series S51

CSA and UL Certified for Safety

Leak Prevention with Adjustable Stem Packing for Reliable Operation

Bray Series 51 brass, threaded ball valves are the ideal commercial utility valve for low-pressure applications. Series 51 threaded ball valves offer simple quarter-turn operation, low operating torque and a bubble-tight seal, making them an excellent choice for a wide range of general service applications, including: Water, Steam, Oil and Compressed gases.

Series 51 features a two-piece brass body design that simplifies maintenance and repair with a threaded closure manufactured with deep grooves, ensuring a tight seal. This feature enhances the reliability of the valve in various applications. The bottom entry blowout proof stem prevents stem ejection under line pressure.

Series 51 threaded ball valves feature a full port design with a hard chromium-plated brass ball that, maximizes flow and extends valve service life. The adjustable stem packing seals prevent media leakage through the stem, maintaining the integrity of the system.
With Bray’s industry-leading warranty, reputation for reliability, and service after the sale, Bray Series 50 three-piece threaded ball valves offer an exceptional value in a wide variety of commercial and industrial flow control applications.

The Series 51 valves come equipped with vinyl insulated handles, providing comfortable operation and protecting the user from heat and cold. 

Specifications

Size Range
¼ to 4" (8 to 100mm)
Body Materials
Brass
Temperature Range
-50°F to 400°F (-46°C to 200°C)
Stem Materials
Brass
Maximum Allowable Operating Pressure
¼ to 2" 600psi WOG, 150psi WSP
2½ to 4" 400psi WOG, 150psi WSP
Seat Materials
PTFE
Shutoff Rating
Zero Leakage
Ball Materials
Chrome Plated Brass
Body Style
Two Piece
Design Standard
MSS SP-110
End Connections
Threaded ASME B1.20.1 NPT
Testing Standard
MSS-SP72
Certifications
CSA, UL
Ports
Full Port
Face to Face
Manufacturers Standard
applications
General Service (Oil, Water, or Steam), Compressed Gases

Downloads

Technical Bulletin
Ball Valves Actuator Selection Guide

Selection Guide
Flow-Tek Part Number Selection Guide Threaded

Product Brochure
Threaded Ball Valves Series S51

Technical Bulletin
Pneumatic Actuator Engineering Data Series 92/93

Our Portfolio

Looking for More Solutions?

Discover Our Range of Products Built for Your Industry's Challenges

Contact Us

Request A Quote