Hydraulically Operated Safety Valve

Sizes

Piston Seal Ring

Seals

Piston

Cylinder

Body

OPTIONS

The valve is normally held closed by a heavy duty stainless steel spring and hydraulic pressure is applied to hold the valve open. When the hydraulic pressure is released, the valve closes rapidly to ensure safe shut-down in the event of an emergency. Hydraulic pressure can be released by :

OPERATION

Valves are normally installed in the vessel shell at the inlet/outlet ports or supplied complete with line housings for fitting into pipelines. They can be installed horizontally or vertically.

Note : These valves are NOT intended as primary closure or check valves - despite their tight seating.

INSTALLATION

Hydraulically Operated Safety Valve has been designed as a rapid action, internal safety valve to facilitate the emergency shut-down of tanks and vessels used for the storage and transportation of LPG, Ammonia, Vinyl Chloride and other hazardous liquids stored at high pressure and usually at ambient temperatures. The valve will "FAIL-SAFE" under all conditions.