The Rowland Company
4900 North 20th Street
Philadelphia, PA 19144
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All Categories > Clutches and Brakes > Clutch and Brake - Accessories > Rotorseals and Quick Release Valves > Quick Release Valves > Quick Release Valves > Item # 145407  


Item # 145407, Quick Release Valves

The Airflex quick release valve (QRV) is a pneumatic in-line, three-way valve designed to automatically close upon pressurization 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 components. The end result is a reduction in lag time between the signal to exhaust and response.





Specifications  · Quick Release Valve Options  · Air Quality

Specifications

Size
1/2

Maximum Operating Pressure
150 psi
10.3 bar

Minimum Sealing Pressure
2 psi
0.14 bar

Operating Temperature Range
-40 to 49 ºC
-40 to 120 ºF

Mean Life
Over five million cycles at 75 psi (5.2 bar) and 80 ºF (27 ºC).

Diaphragm Material
Polyurethane

Housing Material
Zinc alloy

Inlet Port Thread
3/8-18

Tubing Outside Diameter
0.625 in

Cylinder Port Thread
1/2-14

Flow Capacity (Inlet to Cylinder)1
172 ft³/min
4.9 m³/min

Flow Capacity (Cylinder to Exhaust)2
256 ft³/min
7.5 m³/min

Muffler Part Numbers
414915

Dimension D
2.50 in
64 mm

Dimension D1
3.92 in
100 mm

Dimension D533
0.34 in
9 mm

Dimension H
2.18 in
55 mm

Dimension L1
1.42 in
36 mm

Dimension L2
0.63 in
16 mm

Dimension M
1.10 in
28 mm

Dimension O4
0.625 in
15.9 mm

Dimension O15
1/2-14

Dimension O3
0.56 in
14 mm

Dimension O4
7/8-14

Dimension P
1.44 in
37 mm

Dimension U16
1.33 in
34 mm

Dimension U27
2.63 in
67 mm

Dimension U58
2.15 in
55 mm

Dimension W2
1.49 in
38 mm

Manufacturer
Eaton-Airflex
1 Flow Capacity (At 100 psi (6.9 bar) inlet pressure with full pressure drop.)
2 Flow Capacity (At 100 psi (6.9 bar) inlet pressure with full pressure drop.)
3 Depth of tube insertion.
4 Outside tube diameter.
5 American Pipe Thread
6 Swing radius.
7 Swing radius.
8 Swing radius.


Quick Release Valve Options
Diaphragm & End Cap Kit - DP
Diaphragm, Muffler & End Cap Kit - DQ
with Inlet Pipe Thread - DG
with Inlet Pipe Thread & Muffler - DT
with Metal Sleeve - DE
with Metal Sleeve & 1/4 Pipe Adapter - DM
with Metal Sleeve & Muffler - DS
with Metal Sleeve & Pipe Adapter - DL
with Rubber Sleeve - DF
with Rubber Sleeve & Muffler - DR


Air Quality
Clean and dry to avoid contamination of housing and diaphragm. Any additive used in air supply must be compatible with valve materials.