The relatively large diameter of the diaphragm allows air egress from the valve under minimal pressure differential.
Ribs create a very open structure.
The result is a valve is capable of venting several hundred cubic feet of air per minute under as little as three pounds per square inch of differential air pressure. An entire dry suit can be vented in a matter of seconds. The resulting valve is consequently a very safe exhaust valve. Click the button above and order now, online, through a secure server.