A. Karimjee & Sons
A. Karimjee & Sons
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Brass Ball Valves

Brass Ball Valves

Brass Ball Valves

Brass ball valves are compact quarter-turn valves for plumbing, water, gas and compressed air. A quick turn of the lever or butterfly handle gives full flow or full shut-off.

We supply forged brass ball valves with chrome-plated balls and PTFE seats, in full and standard bore, with threaded and compression ends for building services and light industry.

Specifications

Product nameBrass Ball Valve
Valve type / designFloating ball, 2-piece forged body, full or standard bore; lever or butterfly handle
Body materialHot-forged brass CW617N; DZR brass CW602N on request; chrome-plated brass ball; PTFE seats
Size range¼" to 4" (DN8 – DN100)
Pressure ratingPN16 – PN40 (size dependent)
End connectionsThreaded BSP / NPT (female or male); compression on request
StandardsBS EN 13828, MSS SP-110, ISO 228-1 / EN 10226 threads
ApplicationsPlumbing, water, gas, compressed air and HVAC

Industrial uses

  • PlumbingIsolation on domestic and commercial water lines.
  • Gas linesLow-pressure natural gas and LPG isolation (approved models).
  • Compressed airBranch and drop isolation in workshops.
  • HVACIsolation on fan coils, radiators and boilers.
  • Solar & hot waterIsolation on solar and water heater circuits.

Frequently asked questions

What is DZR brass?

Dezincification-resistant brass. It resists the leaching of zinc that can weaken standard brass in aggressive or soft water, so it is preferred for potable water in such areas.

Full bore or standard bore?

Full bore matches the pipe inside diameter for maximum flow. Standard (reduced) bore is smaller and cheaper, with a slight pressure drop.

Can brass ball valves be used for hot water?

Yes, typically up to around 120°C with PTFE seats. The pressure rating reduces as temperature rises.