As system pressure builds, the Accumulator System Shut-Off (ASSO) Valve shuts off pressure when determined levels are reached. Once the valve has closed, air pressure to the cylinder alone will not open it. The pumps must be used to create pressure in the system equal to that in the accumulator. Only when this balanced condition exists can the valve be opened by pilot pressure.
During normal operation, this valve is PLC controlled based on accumulator fluid levels.
If Elwood's standard line of Accumulator System Shut-Off Valves do not fit your system's requirements, please request a custom design and our team will design the valve to fit your needs!
Sizes 2" through 10"
Capacities to 8,000 GPM / 30,000 LPM
Working pressures to 6,000 PSI / 414 bar
Designed to operate with low viscosity fluids and raw water
Removable stainless steel internals
Excellent corrosion resistance
Balanced poppet design
Stainless steel spring-assisted design
Positive sealing at low pressure filling operations