# PUT Straight Union Push-to-Connect Pneumatic Fitting

Date: 2026-05-10
Categories: Pneumatic Fittings
URL: https://homipneu.com/put-straight-union-pneumatic-fitting.html

## Product Summary

PUT pneumatic fittings are straight union push-to-connect fittings designed for direct tube-to-tube connection in pneumatic systems.

With a straight-through structure, PUT fittings allow two pneumatic tubes to be connected in a linear direction, ensuring smooth airflow and minimal pressure loss.

The compact design makes them suitable for space-limited installations and simple pneumatic layouts.

Push-to-connect technology enables fast tube insertion and removal without tools, improving installation efficiency and maintenance convenience.

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

### Specifications

Parameter
Details

Product Type
Pneumatic Fittings

Series
C Type Quick Fitting Series

Structure
Straight Union

Connection
Tube to Tube

Installation
Push-to-Connect

Material
Nickel-Plated Brass / Stainless Steel

Operating Fluid
Air

Working Pressure
0 – 1.0 MPa

Temperature Range
0 – 60°C

Applicable Tubing
PU / Nylon Tube

Straight union fittings provide simple and efficient tube extension and connection in pneumatic systems.

![how to order Pneumatic Fitting](https://homipneu.com/wp-content/uploads/2026/05/20260503212552146290.webp)

### Model: Model: (Example PUT4)

4

6

8

10

12

14

16

### Key Features

- Straight union tube-to-tube connection

- Smooth airflow without direction change

- Push-to-connect quick installation

- Compact and lightweight structure

- Reliable sealing performance

- Suitable for simple pneumatic layouts

### Applications

Pneumatic control systemsUsed for extending or connecting air tubes in a straight line

Industrial automation equipmentEnsures stable tube connections in automated systems

Air distribution systemsSupports clean and organized pipeline layouts

Machinery equipmentSuitable for basic pneumatic tube connections

PU and nylon tubing systemsCompatible with common pneumatic tube materials

### Product Function

PUT fittings are used to connect two pneumatic tubes in a straight line, enabling continuous airflow without changing direction.

They are essential components in pneumatic systems for extending tubing length, repairing pipelines, and simplifying system layouts.

Compared to elbow or tee fittings, PUT provides the most direct airflow path, reducing resistance and improving efficiency.

### Product Structure & Size Range

- Models: PUT4 / PUT6 / PUT8 / PUT10 / PUT12 / PUT16

- Tube sizes: 4mm → 16mm

- Straight union structure

- Push-to-connect tube interface

- Compact inline connection design

### Why Choose Our Pneumatic Fittings

- Professional PUT pneumatic fitting manufacturer

- OEM / ODM customization for straight union fittings

- Reliable push to connect straight connector solution

- Compact design for efficient pneumatic layouts

- Stable performance for industrial applications

- Fast delivery and global B2B supply support

### FAQ

**Q1: What is a PUT pneumatic fitting?**It is a straight union push-to-connect fitting used for connecting two pneumatic tubes directly.

**Q2: What is a straight union fitting used for?**It is used to extend tubing or connect two tubes in a straight pneumatic line.

**Q3: What is the advantage of PUT fittings?**They provide direct airflow with minimal resistance and simple installation.

**Q4: What tubing is compatible with PUT fittings?**PUT fittings are suitable for PU tubing and nylon tubing.

**Q5: Can PUT fittings be customized?**Yes, OEM/ODM customization is available for tube size, material, and branding.

### CTA

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