Pneumatic Straight Union Quick Release Push In Fitting
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Straight Union Connector Tube OD 5/16" Quick Release One Touch Push In To Connect Fitting


WIC Valve PSU Series composite one touch push in to connect fitting equipped with a convenient one touch release button that provides a easy and quick tubing connections with no special tools required.  Our unique stainless collect design offers a secure connections that hold the tube firmly without restricting flow.  


Operating Pressure 0 - 150 PSI 0 - 990 kpa
Vacuum 0 - 29.5 in Hg 750 mm Hg
Operating Temperature 0 - 60 °C 32 to 140°F
Elbows Swivel (rotate 360°)  
Application Air
Recommended Tubing Material Polyurethane, Nylon, Polyethylene, Polypropylene.


Material of Construction 
Plastic Body PBT (Polybutylene terephthalate)
Release Button POM (Poly oxy methylene copolymer)
Grip Ring Stainless Steel
O-ring NBR (Buna-N)


Schematic of Composite Push In Fitting Construction:



Straight Union Connector Dimensions:




WIC Valve PSU Series Straight Union Connector
Part No. Tube OD (Inch) D E Price
PSU-T1/8 1/8" 1.24 0.41 $1.17
PSU-T5/32 5/32" 1.24 0.41 $1.24
PSU-T3/16 3/16" 1.36 0.44 $1.33
PSU-T1/4 1/4" 1.50 0.52 $1.47
PSU-T5/16 5/16" 1.54 0.58 $1.51
PSU-T3/8 3/8" 1.85 0.72 $1.54
PSU-T1/2 1/2" 1.82 0.85 $1.81

Fitting Installation and Removal Guide:

1) Cut the tubing square ensure the outside diameter is free of score marks and no burrs.
To install the tubing into fitting

2) Simply push tubing past the O-ring to the internal tube dead stop by hand.

3) Pull the tubing back gently to ensure it is secure for leakproof connections.

To remove the tubing from fitting

1) Press evenly on both sides of the release button against fitting body, keep the release button (collet) depressed and held in this position

2) Pull the tubing to slide out.



  • Item #: PSU-T5/16
  • Manufacturer: WIC Valve
  • Condition: New

5/16" Inch Pneumatic Straight Union Pneumatic Push In Fitting

Price: $1.51
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