Ball Valves 1/4 Turn, Gas Approved

Hot pressed, nickel plated brass ball valves, approved to BG technology standards. Suitable for gas at low pressures (according to the British Gas list) and for the distribution of natural gas, LPG and propane/air or propane/butane mixtures. Maximum Working Pressure (Gas): 20 bar. Working temperature: -20 to 60°C.

RS PRO S.84 EN331 Brass Ball Valve - 1/4 Turn T-Handle

RS PRO range of brass manual ball valves. Manual ball valves are used to operate shut off valves which control water flow and pressure. These quarter turn brass full bore ball valves have a T handle and are suitable for high temperature hot water services in industrial applications.

Ball valves can be used for air, gases, water, steam, chemicals, petrochemical products, etc. These valves are simple to use, you move the handle by a quarter of a turn to open or close the valve.

RS PRO have a great range of brass ball valves for the control of flow which can handle various pressures and high temperatures. 2-piece valves can be disassembled making them easier to clean and inspect.

Available in a variety of sizes:
<a href="#" title="733-5277">733-5277 - T handle ball valve 1/4 inch F-F
733-5271 - T handle ball valve 3/8 inch F-F
733-5280 - T handle ball valve 1/2 inch F-F
733-5283 - T handle ball valve 3/4 inch F-F
733-5287 - T handle ball valve 1 inch F-F

Legionella is a bacterium that lives and proliferates in natural and artificial aquatic environments at temperatures ranging between 5.7ﾟC and 55ﾟC and standing up to acidic and alkaline environments. New S.84 maintains certification for use with gas and adds approval for use in drinking water; the specific ball design avoids water stagnation and the spread of bacteria in the system.

Note

Approvals apply to specific configurations only

WARNING : Freezing of the fluid in the installation may severely damage the valve

APPROVALS : DVGW (Germany)
SVGW (Switzerland)
BSI (UK)

Colour-coded yellow handles
All valves to EN 331:1998; BS 21
BSPT taper threads to ISO7/1, BS21

Features and Benefits:

• Application : Gas, Oil, Water, Drinking Water


• Operating Temperature : -40ﾟC (-40ﾟF) to +170ﾟC (+350ﾟF)


• Operating pressure : PN40 (600 PSI) up to 2 inch, PN30 (450 PSI) from 2-1/2 to 4 inch


• For use with dangerous fluids temperature rating is –20°C +60°C and pressure rating is 5 bar.


• Threads : EN 10226-1, ISO 228 parallel threads


• Full port


• Connections options : FxF, MxF, BSPP, BSPT


• Stem Configuration : Blowout-proof nickel plated brass stem, with two FPM O-rings at the stem for maximum safety


• Ball seats : Pure PTFE self-lubricating, with flexible-lip design


• Body : Full port to DIN 3357 for maximum flow


• Chrome plated brass ball for longer life with rinse hole


• Silicone-free lubricant on all seals


• Travel stops on body to avoid stress at stem


• 24h 100% seal test guaranteed


• Dual sealing system allows valve to be operated in either direction making installation easier


• No metal-to-metal moving parts


• No maintenance ever required


• Handle clearly shows ball position


• Quality : Hot forged sand blasted, external nickel plated brass body and cap sealed with Loctite or equivalent thread sealant; Finest brass according to EN 12165 and EN 12164 (formerly DIN 17660 and UNI 5705-65) specifications

Typical Applications

Manual quarter turn ball valves are available in various sizes to meet a range of applications. They feature a manual hand lever and can be made from brass, stainless steel and plastic. Ball valves are popular as they are reliable and durable and still close securely over long periods making them suitable for shutoff and control applications.

Applications include:
Heating systems
Water treatment
Gas flow control
Liquid flow control

FAQs

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 valve 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.