Threaded Ball Valve -Series S51
Floating Ball Valves
Threaded Ball Valve -Series S51

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.

Size Range¼ to 4" (8 to 100mm)
Body MaterialsBrass
Temperature Range-50°F to 400°F (-46°C to 200°C)
Stem MaterialsBrass
Maximum Allowable Operating Pressure¼ to 2" 600psi WOG, 150psi WSP
2½ to 4" 400psi WOG, 150psi WSP
Seat MaterialsPTFE
Shutoff RatingZero Leakage
Ball MaterialsChrome Plated Brass
Body StyleTwo Piece
Design StandardMSS SP-110
End ConnectionsThreaded ASME B1.20.1 NPT
Testing StandardMSS-SP72
PortsFull Port
Face to FaceManufacturers Standard
ApplicationsGeneral Service (Oil, Water, or Steam), Compressed Gases