HIGH VELOCITY PRESSURE/VACUUM RELIEF VALVE
AUTOMATIC OPERATION
QUIET, AUTOMATIC OPERATION
Over 500 Superac™ PV-6 valves, in years of continuous marine service, have thoroughly proven the reliability of ERL's specially designed valve. Our PV-6 Valve is quiet in operation and completely automatic so you will never need to be concerned about over pressurization or vacuum damage to your barge, caused by valve failure.
SIMPLE WEIGHT OPERATED DESIGN
Our weight operated design doesn't suffer from the performance variations caused by spring deterioration or the increased friction between internal guide stems and bushings common with friction-type designs. The fact that all the operating mechanisms are located outside of the vapor stream eliminates the possibility of valve sticking due to product or contaminant build-up.
SET POINT REPEATABILITY 3%
Unique low friction design utilizes sealed stainless steel roller bearings outside of the vapor exhaust stream allowing the valve to open repeatedly within 3% of factory stated set opening point. Two easily reached test handles, as required by law, allow for easy testing.
100% STAINLESS STEEL
The main valve body is made of 1/2" thick stainless steel. Even the bearings and the full weather covers are stainless steel.
HIGH VELOCITY DISCHARGE
The minimum discharge velocity rate of 40 meters/second is achieved at even the lowest flow rates. The unique pressure focusing nozzle creates a columnar exhaust flow path allowing vapors to disburse well above the deck level.