Pressure Exhaust Valve

Tank pressure regulating exhaust valves

 
The Alfa Laval SB Pressure Exhaust Valve is a regulating valve that automatically reduces the working pressure in brewery, food, dairy and beverage process tanks as the pressure in the vessel increases. The valve is an integral part of SCANDI BREW® tank top system.
 

Concept

The Pressure Exhaust Valve is to be used in a system for remote control of the working pressure in tanks during a process creating increasing pressure.
The Pressure Exhaust Valve can be mounted directly on top of the tank, as part of a tank top system or located elsewhere in the pipework.
 

Working Principle

The Pressure Exhaust Valve is operated by means of the set point pressure being applied to the top of a membrane set. The pressure regulation will be identical to the set point pressure. The set point pressure is either reduced to the required pressure by means of a manual precision regulator or an IP converter controlled by a PLC.
When the tank pressure exceeds the set point pressure, the valve will open and release pressure through the valve side branch for atmospheric discharge or collection. To ensure correct working conditions, there should be no back-pressure after the vent port.
After force-opening of the Pressure Exhaust Valve by an air signal to the lower part of the membrane set, the valve is fully cleanable either by means of an optional CIP supply valve
 

Standard Design

The valve is equipped with fittings for 4/6 mm nylon hoses for set point pressure and force opening. A CIP inlet is standard-closed with a closing plug. The plug can be changed to a cleaning nozzle designed to be supplied by a diameter of 8 x 1mm steel pipe.