RS PRO Process Ball Valve 1/4in

  • RS Stock No. 812-5211
  • Manufacturer RS PRO
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): IT
Product Details

S.31 Brass Mini Ball Valve for Direct Mount on CP Actuator

Compatible with most industrial fluids including those too viscous for pilot operated valves
Application : air, water, drinkable water, industry
Operating Temperature : -20°C (-4°F)/+120°C (+250°F)
Shell rating : 40 Bar non-shock , cold working pressure
Seat rating : Delta P max permissible 16 Bar
Threads : EN 10226-1, ISO 228 parallel threads
Port : Mini
Connections options : FxF
Stem Configuration : with FPM O-ring at the stem for maximum safety
Ball seats : Pure PTFE self-lubricating
Body : unplated brass
100% Made in Italy
Chrome plated brass ball for longer life
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


Approvals apply to specific configurations only


WRAS (United Kingdom)
UkrSepro (Ukraine)
RoHS Compliant

Ball Valve, Standard, Padlockable and Panel Mount

These nickel plated brass ball valves have seals designed to remove scale deposits with each operation. The polished brass ball is sealed on both sides by nylon ring seals that are supported by compensating nitrile ’O’ rings. This arrangement keeps the seal in contact with the ball, preventing leakage should seal wear occur. A single threaded insert forms part of the valve body, maintaining the required seal compression and allowing the valve to be disassembled easily for inspection.


  • Freezing of the fluid in the installation may severely damage the valve
Attribute Value
Attachment Type Threaded
Thread Size 1/4in
Discontinued product
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