The SU04 Straight Union Fitting is a 2-way equal push-to-connect tube connector designed to join two lengths of 4mm outer diameter (O.D.) pneumatic tubing in a continuous inline setup. Built for quick assembly without tools, it provides instant hose connection and smooth release for tight automated installations.
Featuring a durable PBT composite body, stainless steel internal lock claws, and NBR O-rings, the SU04 maintains a leak-tight seal under full line pressure. Its compact straight-through profile makes it ideal for running pneumatic lines inside tight control panels, pick-and-place robotics, and automated machine assemblies.
Property | Technical Specification |
|---|
Model Code | SU04 (SU-04 / SU-4mm) |
Fitting Type | Straight Union Equal Connector (Push-In / One-Touch) |
Applicable Tube Outer Diameter (O.D.) | 4 mm x 4 mm (Equal Both Ends) |
Fluid Compatibility | Compressed Air, Industrial Vacuum, Inert Gas |
Operating Pressure Range | 0 to 1.0 MPa (0 to 10 bar / ~145 PSI) |
Negative Pressure / Vacuum | -100 kPa (-29.5 inHg / -750 mmHg) |
Proof / Burst Pressure | 1.5 MPa (~215 PSI) |
Operating Temperature | 0°C to +60°C (32°F to 140°F) |
Applicable Tubing Materials | Polyurethane (PU), Nylon (PA), Polyethylene (PE) |
Body Material | PBT / POM Composite Resin |
Locking Mechanism | Stainless Steel (SUS 304) Gripping Claws |
Seals | NBR (Nitrile Rubber) O-Ring |
