Hydraulic relief valve
Sterling Hydraulics
The basic function of a relief valve is either as a standby safety valve to limit system pressure, or as an active control valve used to maintain pressure at a specific level or over a desired range.
When used as a safety valve they provide overpressure protection to:
a) Avoid a system component or pipeline failure
b) Prevent the stalling of a prime mover, for example an electric motor or diesel/petrol engine
c) Prevent excessive force from being generated by either an actuator or hydraulic motor
When used as a control valve they can be set or adjusted directly (or in some cases remotely) to control either the overall system pressure or the pressure of a particular circuit function.
RANGE CAPABILITY
Sterling relief valves cover a wide range of pressure settings from 2 bar up to 420 bar (30 – 6000 psi) with flow capacities up to 400 l/min (106 Usgpm), equating to a maximum power absorbing capability of up to 280 Kw (375 hp).
