Nabic Fig 542 Safety Relief Valve

  • Female BSPP x Female BSPP
  • Set and Sealed at the Factory
  • Complete with Lifting Lever
  • BS6759 WRAS Approved


The Nabic Fig 542 safety relief valve is an extremely versatile valve, used extensively on hot water, steam and air. Although designed primarily for use on hot water boilers, its wide range of applications make it ideally suited as a general purpose safety valve.

NABIC valves are fully made in the UK with castings from the UK and Europe unlike many of its competitors using components from the far east.

General Product Dimensions

Order CodeInletOutletOrificeRange
N542-15-*1/2"1/2"15mm0.3 - 10.5 BAR
N542-20-*3/4"3/4"20mm0.3 - 10.5 BAR
N542-25-*1"1"25mm0.3 - 10.5 BAR
N542-32-*1.1/4"1.1/4"32mm0.3 - 10.5 BAR
N542-40-*1.1/2"1.1/2"40mm0.3 - 10.5 BAR
N542-50-*2"2"50mm0.3 - 10.5 BAR
N542-65-*2.1/2"2.1/2"65mm0.3 - 10.5 BAR
N542-80-*3"3"80mm0.3 - 10.5 BAR

* Specify the set pressure at time of order.

Test certificates are available at extra cost.

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Specifications are subject to change without notice.

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