Skip to Content
Shop
Product Catalogue

Pneumatic
Components

Browse our complete range of industrial-grade pneumatic and automation components — engineered for reliability, compatibility, and performance on the factory floor.

500+
Products
In Stock
500+ Products
ISO-Grade Quality
Free Shipping
24/7 Support
Secure Checkout
Home Shop

PM04 AIRMIXS Pneumatic Bulkhead Union Push-In Fitting 4mm Tube O.D. x 4mm Tube O.D.

The PM04 Bulkhead Union Fitting is engineered for quick, secure, and leak-free feed-through connections of pneumatic tubing through panels, bulkheads, or enclosure walls. Designed for 4mm outer diameter (O.D.) tubing, this fitting features dual push-to-connect ports held firmly in place with a threaded body and locknuts.

Constructed with high-grade nickel-plated brass and durable POM/PBT components, it offers excellent corrosion resistance, high pressure durability, and easy tool-free installation/release for air and vacuum automation systems.

Property

Technical Specification

Model Code 

PM04 (PM-4) 

Fitting Type 

Straight Bulkhead Union (Push-in / One-Touch) 

Tube Outer Diameter (O.D.) 

4 mm x 4 mm 

Fluid Compatibility 

Compressed Air, Vacuum, Water (Non-freezing) 

Operating Pressure Range 

0 to 1.0 MPa (0 to 10 bar / ~145 PSI) 

Negative / Vacuum Pressure 

-100 kPa (-29.5 inHg / -0.95 bar) 

Proof Pressure 

1.5 MPa to 3.0 MPa 

Operating Temperature 

0°C to 60°C (32°F to 140°F) 

Applicable Tubing Materials 

Polyurethane (PU), Nylon (PA), Polyethylene (PE), PVC 

Body / Thread Material 

Nickel-Plated Brass 

Release Sleeve Material 

POM / PBT Plastic (Grey / Blue / Black) 

Locking Mechanism 

Stainless Steel (SUS) Gripping Claws 

Seals 

NBR (Nitrile Rubber) 

6.00 SR 6.00 SR