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Manifold Unequal Push To Connect Fitting

Distribute Mixed Inch Tube Sizes from a Compact Manifold

PKG Series push-to-connect fittings are designed to distribute a common air supply to multiple inch-tube outlets of different sizes. They provide a fast removable connection for compatible pneumatic tubing used throughout industrial automation and compressed air equipment.

The unequal manifold format helps machine builders keep tubing layouts compact and serviceable. Correctly selected fittings can simplify installation around valves, cylinders, manifolds and control panels while allowing compatible tubing to be removed for maintenance after the circuit is safely depressurized.

Download Push-In Fittings Datasheet

Operating Specifications

  • Fluid medium: Air
  • Working pressure: 0–150 psi(g) / 10 bar(g)
  • Proof pressure: 450 psi(g) / 30 bar(g)
  • Vacuum duty: 29.5 inHg / 14 mbar(a)
  • Working temperature: 32–140°F / 0–60°C

Key Benefits

  • One-touch tube installation reduces assembly time
  • Compatible tubing can be disconnected and reconnected for service
  • Compact geometry helps organize machine pneumatic plumbing
  • Selection should consider main inch tube size, branch sizes, outlet count and flow
  • Suitable for new OEM machinery and replacement work

Common Applications

  • Industrial automation machinery
  • Pneumatic cylinders and actuators
  • Directional control valves and manifolds
  • Packaging and assembly equipment
  • Robotics and material handling
  • OEM pneumatic equipment
  • General factory compressed air systems

Frequently Asked Questions

What is a unequal manifold fitting used for?

It is used to distribute a common air supply to multiple inch-tube outlets of different sizes in a pneumatic circuit.

How does a push-to-connect connection work?

Compatible pneumatic tubing is pushed into the fitting until the internal gripping and sealing components retain it. The tube is released using the collar after the system is safely depressurized.

What tubing is commonly used?

The source range identifies polyurethane and nylon pneumatic tubing as common materials. Always match tube outside diameter and material to the fitting.

What is the operating pressure?

The listed pressure range for this category should be confirmed against the exact model. The source data provides the category operating limits shown above.

Can these fittings be used for vacuum?

Yes, where the specific fitting and tubing are rated for the listed vacuum duty. Confirm the exact model before use.

Can the tubing be removed and reused?

Yes. Push-in fittings are designed for repeated tube connection and disconnection when used correctly and depressurized before service.

Where are these fittings commonly used?

They are used on pneumatic valves, cylinders, manifolds, machine panels and general industrial automation equipment.

How do I select the correct unequal manifold?

Confirm main inch tube size, branch sizes, outlet count and flow, together with pressure, temperature and tubing compatibility.

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