Specification Parameters
| Operating Fluid | Air, Vaccum, Water(no freezing) |
| Body Material | Brass |
| Type | Pneumatic Fittings |
| Proof Pressure | 1.32 MPa (13.5 kgf/cm²) |
| Max. Operating Pressure | 0~0.9 MPa (0~9.2 kgf/cm²) |
| Ambient & Fluid Temperature | 0~60°C |
| Lock Claw | Stainless Steel(SUS) |
| Applicable Tubing | PU Tube, Nylon Tube |
| Model | Φ D × 2 | B | E | M | H × 2 |
| PM-4 | 4 | 28.5 | 8 | M12×1 | 14 |
| PM-6 | 6 | 31.5 | 10 | M14×1 | 17 |
| PM-8 | 8 | 33.5 | 11 | M16x1 | 19 |
| PM-10 | 10 | 37 | 12 | M20x1 | 24 |
| PM-12 | 12 | 40 | 14 | M22× 1 | 27 |
Key Features
- Bulkhead straight union structure
- Tube-to-tube connection through panel
- Push-to-connect quick installation
- Leak-proof sealing with O-ring
- Durable brass and engineering plastic construction
Applications
- Pneumatic control panels
- Industrial automation systems
- Air distribution pipelines
- Machinery equipment
- Robotics and assembly lines
Widely used in pneumatic systems requiring tube routing through panels, organized piping layout, and reliable air-tight connection.
Product Function
PM bulkhead union fittings are used to connect two tubes on both sides of a panel or barrier, allowing air lines to pass through obstacles safely and securely.
Product Structure & Size Range
- PM4 / PM6 / PM8 / PM10 / PM12
- Tube sizes: 4mm → 12mm
- Equal union (both sides same tube size)
- Panel mounting with locking nut
Why Choose Our Pneumatic Fittings
- Professional PM pneumatic bulkhead fitting manufacturer with full size range
- OEM / ODM customization for panel mount push to connect fitting projects
- Reliable bulkhead union connector for pneumatic and automation systems
- High-quality air fitting factory China with strict QC system
- Durable push-in pneumatic fitting for panel-through air systems
- Fast delivery and global B2B supply support
FAQ
Q1: What is a PM pneumatic fitting?
It is a bulkhead union fitting used to connect two tubes through a panel or wall.
Q2: What is a bulkhead fitting used for?
It allows tubing to pass through panels or enclosures while maintaining a sealed connection.
Q3: How does a push-to-connect bulkhead fitting work?
The tube is inserted into both ends, locked by internal teeth, and sealed by an O-ring.
Q4: What is the working pressure of PM fittings?
Typical working pressure is up to around 1.0 MPa.
Q5: Can PM fittings be customized?
Yes, OEM/ODM customization is available for size, material, and design.
