Description
The Airflex® quick release valve (QRV) is a pneumatic in-line,
three-way valve designed to automatically close upon pres
surization and open to exhaust when a pressure drop occurs
in the supply line. The valve provides an exhaust port close to
the pressurized chamber of the device being controlled rather
than exhausting through long supply lines and/or control com
ponents. The end result is a reduction in lag time between
the signal to exhaust and response. The benefits derived
include:
Faster cyclic rates
Reduction or elimination of overlap
Reduced wear of drive components
Four basic valve sizes are available, identified by the Ameri
can National Pipe Thread on the cylinder port: 3/8″, 1/2″, 3/4″
and 1″ NPT. Models are available with inlet ports suitable for
either pipe or tubing connections. Mufflers are also available
to reduce exhaust noise.
Quick release valve sizes 3/8, 1/2 and 3/4 utilizes a diaphragm
in their design. Air pressure, at the inlet, seats the diaphragm
on the end cap, closing the exhaust port. Pressure on the out
er unsupported diaphragm area causes it to deflect, allowing
air to flow to the cylinder port. When a pressure drop occurs
in the air supply, the pressure di erential lifts the diaphragm
from the exhaust port and seats it on the inlet port. Air from
the pressurized device can now flow freely to atmosphere
through the exhaust port.
Airflex® Quick Release Valves
Airflex® 3/8″, 1/2″ and 3/4″ Q.R.V. and repair kits.
