# PM Bulkhead Union Push-to-Connect Fitting

Date: 2026-06-19
Categories: Pneumatic Fittings
URL: https://homipneu.com/pm-bulkhead-union-push-to-connect-fitting.html

## Product Summary

PM pneumatic fittings are bulkhead union push-to-connect connectors designed for straight tube connection through panels in pneumatic systems.

Featuring a bulkhead mounting structure, PM fittings allow tubing to pass directly through panels without changing airflow direction, making them ideal for control cabinets, enclosures, and organized pneumatic layouts.

The fitting adopts a durable metal body and sealing structure to ensure stable performance, corrosion resistance, and long service life in industrial environments.

Push-to-connect technology enables quick installation without tools while maintaining secure and leak-resistant tube connections.

OEM and ODM customization services are available for tube size, thread specifications, and branding requirements.

### Specifications

Parameter
Details

Product Type
Pneumatic Fittings

Structure
Bulkhead Union (Straight)

Connection
Tube to Tube

Installation
Panel Mount

Material
Nickel-Plated Brass

Seal Type
O-Ring Seal

Operating Fluid
Air

Working Pressure
0 – 1.0 MPa

Temperature Range
0 – 60°C

Applicable Tubing
PU / Nylon Tube

Nickel-plated brass bulkhead union fittings provide corrosion resistance, secure sealing, and long-term reliability in pneumatic systems.

![PM pneumatic bulkhead union straight push to connect air fitting](https://homipneu.com/wp-content/uploads/2026/04/20260428200029068031-800x440.webp)

**Model**
**Φ D × 2**
**B**
**E**
**M**
H × **2**

[PM](https://homipneu.com/product/pneumatic-fittings/pm-pneumatic-bulkhead-union.html)-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 panel-mount design for secure installation

- Straight union structure without airflow direction change

- Push-to-connect system for fast tube connection

- Durable metal body for industrial applications

- O-ring sealing for leak-resistant performance

- Suitable for panel-through tubing applications

### Applications

Pneumatic control panelsUsed for routing air tubes straight through panels

Industrial automation systemsEnsures stable tube connections in enclosed environments

Air distribution systemsSupports clean and organized pneumatic layouts

Machinery equipmentIdeal for panel-mounted tube routing without direction change

Cabinet and enclosure installationsProvides structured and secure air line management

### Product Function

PM fittings are designed to connect pneumatic tubing through panels while maintaining a straight airflow path.

They are essential for applications where tubing must pass through a panel without changing direction, ensuring clean layout design and efficient system organization.

Compared to elbow bulkhead fittings (PLM), PM provides straight-through connection, making it suitable for linear airflow routing.

### Product Structure & Size Range

- Models: PM4 / PM6 / PM8 / PM10 / PM12

- Tube sizes: 4mm → 12mm

- Bulkhead mounting with lock nut

- Straight union structure

- Push-to-connect interface

### Why Choose Our Pneumatic Fittings

- Professional PM pneumatic fitting manufacturer

- OEM / ODM customization for bulkhead union fittings

- Reliable panel mount straight connector for automation systems

- Nickel plated brass fittings for durability and corrosion resistance

- O-ring sealing ensures stable and leak-proof connection

- Fast delivery with global B2B supply support

### FAQ

**Q1: What is a PM pneumatic fitting?**It is a bulkhead union push-to-connect fitting used for straight tube connection through panels.

**Q2: What is a bulkhead union fitting used for?**It allows pneumatic tubing to pass through panels without changing airflow direction.

**Q3: What is the difference between PM and PLM fittings?**PM is a straight bulkhead fitting, while PLM is a 90-degree elbow bulkhead fitting.

**Q4: Does PM fitting include sealing?**Yes, it uses an O-ring sealing structure to ensure leak-resistant performance.

**Q5: What tubing is compatible with PM fittings?**PM fittings are compatible with PU and nylon tubing.

### CTA

Looking for reliable bulkhead union push-to-connect pneumatic fittings?Contact us now for OEM/ODM solutions, bulk pricing, and fast delivery.