Vacuum Relief Valve - Top mounted - pipe-away - spring loaded - Model 192

Storagetech™ 's Model 192 Top Mounted, Pipe Away,
Spring Loaded Vacuum Relief Valve provides protection
to bulk storage tanks and vessels from excessive under
pressurisation. The valves are mounted on the tank roof
flange or a vent pipe from the vapour space. Sytem is especially
prefered for transfering vapour content from collection
system or condensation units, even prevent certain
fire hazards.The vacuum relief pallet and diaphragm
assembly is held tightly against a seal to prevent the loss
of vapour to atmosphere in the closed position. System
back pressure are also included in balance calculations to
achieve desired certain seat and re-seat actions. As the
internal pressure in the tank decreases, due to emptying
vacuum conditions occurs, the balance between the tank
pressure and the external atmospheric pressure changes.
Accordingly when the set pressure of the unit is reached,
the diaphragm opens to vacuum air content and rebalance
the internal pressure. Storagetech Valves Activated
as close as to set pressures, less than 10% of set )ressures,
ensuring accurate pressure management and isolate
emission losses perfectly.