The Type 14520, 14530 and 14580 precision relief valves have been designed to provide accurate pressure control in systems operating at pressures of up to 1,518 bar and flows of up to 25 litres/min (dependant on pressure). The floating poppet design enhanced by the use of linear bearings produces characteristics which are non flow dependent and ensures long life with repeatable performance.

	Floating poppet design produces reseating at 90% of cracking pressure (Static test conditions).
	The main spring load is not transmitted to the seat, thus reducing distortion and wear.
	Design characteristics are not flow dependent; producing a near linear response to increasing flow.
	Long life and repeatable performance are ensured through the use of hardened elements operating in a linear bearing cage.
	Installation and removal of system pipework is simplified by the right angled configuration.

Drawing

Materials

External/wetted parts – 316 stainless steel
Hardened parts – M340
Other parts – Stainless steel
Other material options available on request.

Working temperature

Nitrile: –20°C to +80°C. Viton: –10°C to +80°C.

Configuration options

Part No.	Pressure range (bar)	Inlet connection	Outlet connection