RS PRO Stainless Steel Reduced Bore, 2 Way, Ball Valve, Threaded, BSPP 1/4in, 68bar Operating Pressure

RS Brand reduced-bore quarter-turn stainless steel ball valves for the control of flow. Available in a variety of sizes.

499-2789 - 1/4 inch BSPP F-F
499-2795 - 1/2 inch BSPP F-F
499-2802 - 3/4 inch BSPP F-F
499-2818 - 1 inch BSPP F-F
499-2824 - 1-1/4 inch BSPP F-F
499-2830 - 1-1/2 inch BSPP F-F
499-2846 - 2 inch BSPP F-F

Reduced port, 1/4" - 3" (DN8 - DN80)
W.P: 1000WOG (PN63)
W.T: -20°C to 200°C (-4°F to 392°F)
Investment casting
Blow-out proof stem
Anti-static device (option)
Locking device
Thread type: ASTM B1.20.1 (NPT) DIN2999 & BS21 ISO7/1 & EN10226

Body & Retainer - ASTM A351-CF8M/ASTM A351-CF8
Ball - ASTM A351-CF8M
Seat A & B - PTFE/RTFE
Stem - AISI 316/AISI 304
Thrust Washer & Packing - PTFE
Gland Ring, Spring Washer, Stem Nut & Handle - AISI 304
Handle Sleeve - PVC
Locking Device - AISI 304

How does a manual ball valve work?

A ball valve is a type of shut off valve that controls the flow of liquids or gases by its rotary ball. The valve is open when the ball’s hole is in line with the flow and closed when the ball is rotated by a quarter turn (90 degrees) by the value handle.

What is the difference between full bore and reduced bore ball valves?

A full-bore ball valve (also known as full port) has an oversized ball so that the hole in the ball is the same size as the pipeline resulting in lover friction loss. In other words, the bore diameter has the same internal diameter as the pipe. A reduced bore valve has a smaller bore diameter than the internal diameter of the pipework it is on.

Ball Valve, 1 Piece – Stainless Steel