Types 14520. 14530, 14570, 14580 precision relief valves



HOME


PUMPS, MOTOR PUMP UNITS

Water/Glycol pumps

Water pumps

Oil pumps


PRESSURE INTENSIFIERS

Topside use

Subsea applications


VALVES

Relief valves

Thermal relief

Directional valves

Slide valves

Shutdown, lockout relay,

excess flow, flowline pilot


GENERAL

About us

Quality

Contact




STAINLESS STEEL
RELIEF VALVES

Type VRD

Type VRCD

Type 14450

Types 14520 – 14580

Type 14340 low pressure

14540, 14640 semi-capsule

Accurate pressure control – up to 1,518 bar
Floating poppet design – reseating at 90% cracking pressure
Right angled configuration aids installation
External parts 316 s/s


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
Model 14520
14520–01 100 – 240 3/8" NPT 3/8" NPT
14520–02 207 – 413 3/8" NPT 3/8" NPT
14520–03 345 – 700 3/8" NPT 3/8" NPT
14520–04 100 – 240 3/8" BSP 3/8" BSP
14520–05 207 – 413 3/8" BSP 3/8" BSP
14520–06 345 – 700 3/8" BSP 3/8" BSP
Model 14530
14530–01 100 – 240 1/4" NPT 1/4" NPT
14530–02 207 – 413 1/4" NPT 1/4" NPT
14530–03 345 – 700 1/4" NPT 1/4" NPT
14530–04 100 – 240 1/4" BSP 1/4" BSP
14530–05 207 – 413 1/4" BSP 1/4" BSP
14530–06 345 – 700 1/4" BSP 1/4" BSP
Model 14570
14570–01 100 – 240 9/16" MP 3/8" NPT
14570–02 207 – 413 9/16" MP 3/8" NPT
14570–03 345 – 700 9/16" MP 3/8" NPT
*14570–04  600 – 1380 9/16" MP 3/8" NPT
14570–07 100 – 240 9/16" MP 3/8" BSP
14570–08 207 – 413 9/16" MP 3/8" BSP
*14570–09  345 – 700 9/16" MP 3/8" BSP
14570–10 345 – 700 9/16" MP 3/8" BSP
Model 14580
14580–01 100 – 240 3/8" MP 3/8" NPT
14580–02 207 – 413 3/8" MP 3/8" NPT
14580–03 345 – 700 3/8" MP 3/8" NPT
*14580–04  600 – 1380 3/8" MP 3/8" NPT
14580–07 100 – 240 3/8" MP 3/8" BSP
14580–08 207 – 413 3/8" MP 3/8" BSP
*14580–09  600 – 1380 3/8" MP 3/8" BSP
14580–10 345 – 700 3/8" MP 3/8" BSP
*14580–11  600 – 1380 3/8" MP 3/8" MP
*14580–22  1000 – 1518 1/4" MP 1/2" MP
 Reseat pressure – 90% of cracking pressure or better (static test conditions).


© Marshalsea Hydraulics Limited – a member of the Bifold Fluidpower group of companies.

Website by Big Bird Design