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Pneumatic Connection Solutions Expert
Pneuflex is manufacturing push in fittings, pneumatic fittings, push to connect fittings, one touch tube fittings with O-ring, brass push-in fittings, brass push to connect fittings, plastic and sintered silencers, brass pipe fittings, flow control valves and pneumatic tubing based in China.
pneumatic push in fittings
You are here: / / / Cautions in Application of Push in Fittings Joint

Before use, it should make clear following points:

Warning                                                                                                                                                                
1. Except air and water (only special type and custom-design), never attempt to use the tube joint other fluids.
2. The tube joint application is prohibited where spark and fire might be occurred.
3. The tube joint application is prohibited if water temperature is above 60°C because resin might be decomposed and damaged in water under a high temperature.
4. The tube joint is not designed for application where there is static charge.
5. Never apply tube joint with additional external load (bending, twist or pulling), otherwise damage or leakage will be occurred.

Caution                                                                                                                                                                 
1. If you use other supplier tubing, the different tubing tolerance might cause leakage or incorrect connection and disassembly. It must check if tubing OD is in compliance with the specification as listed in following table.

PNEFULEX pneumatic tubing size

2. Always check the end of tubing for a right angle cutting and check the external surface of tubing for any damage or scratch. Please refer to following instruction in connection of tubing. When you insert the air tubing into the joint, you will have two-step feeling. Section One is locking claw while Section Two is sealing ring. You must insert the tube into Section Two.

Sleeve is used in tubing connection and disconnection. The sleeve is designed as an oval shape, which is convenient in assembly and disassembly. However, round sleeve is available to meet any customer special demand if the customer product has limited space for oval sleeve. After connection of tube joint and tubing, always try to pull tubing and ensure its firm connection.

The minimum insertion length of tubing is as listed, however, the tubing length tolerance as listed is necessary in practice.

pneumatic fittings and tubings

3. Cautions during disassembly of tubing. Before disconnection of tubing, always check tubing internal pressure for zero. For disconnection of tubing, always press sleeve heavily and then pull out tubing. If sleeve is net pressed with enough force, it is hard to pull out tubing and external surface scratch might be resulted by locking claw, which is the cause of air leakage. Don't swing or rotate tubing in disconnection otherwise groove might be resulted on the tubing surface by locking claw to prevent tubing from pulling.

4. Always use proper tool to tighten external hexagonal and internal hexagonal parts of the tube joint. Always apply recommended torque on screws otherwise extra torque might damage thread and cause air leakage while insufficient torque might cause loose screws and air leakage. After screws are tightened, you may adjust the direction of tubing with most of our tube joint. If it is hard in adjustment, you may apply recommended torque to turn screw to adjust direction of tubing.

Recommended Torque for Different Thread Specifications:

thread size of puhs in fittings

OEM Providing

Pneuflex can help customers to make molds and print customers' brand on the fittings and tubing. Work together to satisfy end-users and win the market. Contact Pneuflex for more information.

Pneumatic Fittings

> Brass Push in Fittings
> Miniature Push in Fittings

Pipe Fittings

> Brass Pipe Fittings
> Stainless Steel Pipe Fittings
> Brass Rapid Joint Fittings
> Stainless Steel Barb Fittings
> Brass Barb Fittings

Pneumatic Tubing

> Polyurethane Tubing
> Nylon Tubing
> Polyethylene Tubing
> Teflon Tubing
> Tubing Cutters

Pneumatic Valves

> Flow Control Valves
> Hand Valves
> Speed Controllers
> Inline Flow Control Valves
> Brass Push in Flow Control Valves