The VEM manual emergency valve is a 2/2 (2 way/2 position) valve, normally closed, direct-acting. Oil flow is allowed in both directions.
The valve is normally closed and opens by pushing the button on the top of the cartridge.
Return to closed position is guaranteed by a spring once the pushbutton is released.
VEM manual emergency valves are available in SAE8-2 (cavity thread 3/4-16 UNF) and SAE10-2 (cavity thread 7/8-14UNF) offering maximum working flow up to 50 litres per minute.
Maximum working pressure is 320 bar when fitted to a steel manifold, 210 bar if fitted into an aluminium manifold.