Nabic™ Series 542 Safety Relief Valve

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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