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Nabic™ Series 542 Safety Relief Valve

The Figure 542 Safety Valve is an extremely versatile valve, suitable for use on hot water, steam or air. Although designed primarily for the protection of hot water boilers, it's wide range of applicants make it an ideal valve for stocking as a general purpose safety valve.

The Figure 542 is of gunmetal construction, with diaphragm protected working parts and PTFE to metal seating. All wetted parts are manufactured from dezincification resistant materials, approved by the Water Research Centre for use on potable water. Inlet and outlet connections are of equal size, with female threads to BS 21. Sizes from DN 32 upwards are available with flanged inlet connections.

Technical Data Summary
Specification Features  
Body Material Gunmetal
Maximum Set Pressure 10.5 bar
Maximum Temperature 195°c
Design Features  
  Resilient PTFE Seating Design
  High degree of seat tightness
  Suitable for hot water, steam and air
  High discharge capacity
  Diaphragm protected working parts
  Safe manual testing
  Easy inspection and cleaning
  Pressure setting locked and sealed
  Designed and tested to BS 6759
Approvals  
  Capacities certified by AOTC
  Approved by Water Regulations Advisory Scheme
  UKWFBS Listed
Optional Features  
  Padlock available

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