Type 14520, 14530 and 14580
Precision relief valves

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 1,000 bar and flows of up to 25 litres/min. 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 95% of cracking pressure or better; allowing use of hardened seats for durability
	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

Part no. Pressure range (bar) Connections Model 14520 14520 - 01 100 – 240 3/8" NPT 14520 - 02 207 – 413 3/8" NPT 14520 - 03 345 – 700 3/8" NPT 14520 - 04 100 – 240 3/8" BSP 14520 - 05 207 – 413 3/8" BSP 14520 - 06 345 – 700 3/8" BSP Model 14530 14530 - 01 100 – 240 1/4" NPT 14530 - 02 207 – 413 1/4" NPT 14530 - 03 345 – 700 1/4" NPT 14530 - 04 100 – 240 1/4" BSP 14530 - 05 207 – 413 1/4" BSP 14530 - 06 345 – 700 1/4" BSP Model 14580 14580 - 01 100 – 240 3/8" MP Butech 14580 - 02 207 – 413 3/8" MP Butech 14580 - 03 345 – 700 3/8" MP Butech 14580 - 04 600 – 1,000 3/8" MP Butech Reseat pressure – 95% of cracking pressure or better. Proof test pressure: 1,000 bar

Materials External/wetted parts 316 stainless steel Hardened parts 431 stainless steel Other parts stainless steel