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DZR Brass Ball Valve BSP - 1" / 25mm

DZR Brass Ball Valve BSP - 1" / 25mm


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Regular price £37.95
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DZR Brass Ball Valve BSP - 1" / 25mm.                           Ref21:  AF-1-70903                      P43

This DZR Ball Valve is a robust, dezincification resistant ball valve that is particularly suitable for those installations where high aggressive water causes causes zinc leaching in the standard brass alloys and weakens the material molecular structure.


  • Dezincification resistant materials
  • Blow-out proof stem
  • Full bore
  • Very fast opening/closing in case of emergency
  • No maintenance - equipped with wrapping seats ensuring long life cycles
  • Antifriction ring forms the first automatic sealing at high pressure
  • Two self adjusting cone shaped seals, with Teflon sliding for second sealing at low pressure
  • 1 ‘O’ ring in EPDM for sealing at low pressure and vacuum

Suitable for: 

  • Inlet for cooling engines
  • Generators
  • Air conditioning
  • Refrigeration units
  • Deck drain outlets
  • Exhaust outlets
  • Seawater inlets for toilets
  • Seawater outlets for toilets


  • Temperature Limits: Fluids: -15°C to +120°C
  • Pressure Limits: Fluids: 25 Bar
  • Thread: Female Parallel Thread ISO 228/1 

Dimensions (See second picture for reference): 

  • A: 105mm
  • B: 56mm
  • C: 48mm
  • L: 84mm
  • D: 25mm 


  • Body & Threaded End: DZR Copper alloy CW602N (UNI EN 12165)
  • Gland: DZR Copper alloy CW614N (UNI EN 12164)
  • Stem: DZR Copper alloy CW602N (UNI EN 12164)
  • Ball: Chrome Plated DZR Copper alloy CW602N (UNI EN 12164)
  • Seals: Pure PTFE (Teflon)
  • O-ring: EPDM
  • Lever: Zinc plated steel, PVC coated Grip
  • Fixing Nut: Zinc plated steel
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