Pneumatic Push fitting

What is it ?

Pneumatic Push fittings are a type of connection device used in pneumatic system applications. They have the function of quick connection or disconnection, and can efficiently install and remove pipes without tools. They ensure leak-free pipe connections in pneumatic systems. They are the most commonly used pneumatic components and ensure the stable operation of various pneumatic components in pneumatic systems.

it’s made of stainless steel circlips, built-in NBR sealing rubber rings, and copper metal processed by precision CNC equipment. The ingenious design can quickly connect pneumatic components and other pneumatic tools and pneumatic equipment through air pipes and threads to complete related actions.

It have many styles and are extremely important in pneumatic systems. On this page, I will introduce in detail the types, advantages, how to choose, how to use, and related application fields of Pneumatic Push fittings.

Pneumatic Push fitting core functions

Quick connect and disconnect

Wide range of applications

Easy maintenance

Strong flexibility

What are the main types of Pneumatic Push fittings?

There are blue, white, black and all-metal caps. Various shapes make it flexible. The body has brass oxidation process and copper nickel plating process. If you need to customize other colors, please contact us.

Pneumatic Male Connector

According to the function, it is divided into straight thread fittings, which have one end threaded and the other end inserted with air pipe, and can also be called pu male connector. There are also Pneumatic straight connectors, Union straight fittings, and pu connectors with air pipes at both ends. The diameters of the pipes at both ends are different, which are called pneumatic reducer fittings.

pneumatic elbow

Pneumatic elbow is also called Union elbow fitting. It has a threaded connection at one end and a push-in connection at the other end. There are also push-in connections at both ends, and there are also pneumatic reducer fittings that are connected with different pipe diameters at both ends.

Union Tee fitting

There are three types of tee fittings: pneumatic tee fittings, y air fittings.
One end can be threaded and the two ends can be push-in, or all three connection points can be push-in. There are also push-in connections with different diameters.

Multiple connection points pneumatic push in air fittings

4 way air fitting, compressed air bulkhead fitting, pneumatic blanking plug, and five-way connector all use push-in connections.

Key design structure of Pneumatic Push fitting

Important factors affecting its stable use and lifespan

Its body is made of H59 brass, which is oxidized and nickel-plated. It has corrosion resistance, ultra-high thermal conductivity, wear resistance and high hardness.
It has a built-in NBR rubber sealing ring, which has a good sealing effect and is not easy to leak.
The stainless steel clip spring is precision processed and chamfered, so it is not easy to corrode and deform, will not easily puncture the PU air tube, and maintains toughness for a long time.
It uses a metal zinc alloy fastening ring, which will not produce thermal expansion and contraction due to climatic factors, thereby ensuring that the pneumatic joint is not prone to the air pipe and the press cap falling off during long-term use.

2.Classification by functional style.

There are pu connectors, which are used to extend the air circulation distance and facilitate the repair of ruptured air pipes. There are Pneumatic Elbows, which are used for air circuits at large angles. There are air bulkhead fittings, which are mainly designed to allow air circuits to penetrate hard objects and prevent hard objects from damaging the air pipes. There are Pneumatic Male Connectors, which are designed to fix pneumatic components, pneumatic equipment, and pneumatic tools through threads.

There are pneumatic T fittings, Y Air Fitting, Pneumatic plug, pneumatic reducer, etc., which are mainly designed to divert air flow and change pressure.

Most of the types are listed on the page in the form of pictures for reference so that you won’t get lost.

3.Classification by interface type

A combination of threaded and straight plug. The threaded end is mainly used to connect equipment, and the straight plug is mainly used to insert pipes. The threads are NPT and PT, and the default is PT thread. The main thread sizes are 1/8.1/4.1/2, 3/8.

Threadless straight-insert type, directly inserted into the trachea types include PE tube, PA tube, PE tube, PU tube, PEE tube, and the tube sizes include the main intubation sizes of 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, and 16mm.

4.Classification by material

H59 brass, high hardness, corrosion resistance, strong thermal conductivity, suitable for most environments, except special environments.
PC plastic material, lightweight, low cost, corrosion resistance,

In addition to the above two materials, there are also stainless steel Pneumatic Push fittings, which we will introduce in detail on another page.Learn more

What are the advantages of Pneumatic Push fittings?

The main core functions of Pneumatic Push fittings are simple and fast installation, ingenious design, strong sealing performance and no air leakage, excellent compatibility and adaptability to a variety of air pipes, multi-specification threads can be connected to a variety of equipment for fixing, no tools are required for installation, low operating threshold, and convenient maintenance and expansion.

How to choose Pneumatic Push fittings?

Determine the pressure level: The maximum operating pressure of Pneumatic Push fittings is 1.32Mpa (13.5kgf/cm²). Normal operating pressure is 0~0.9Mpa (0~9.2kgf/cm²), and low pressure operating pressure is -99.99~0Kpa (-750~0mmHg), which makes the equipment run stably and prolongs the life of Pneumatic Push fittings.
It is recommended to keep the pressure range within the range described above. If you need a higher pressure, please contact us for consultation or check other product introductions of our company.

Match the air pipe size and thread size to ensure that the inner and outer dimensions of the air pipe of the Pneumatic Push fittings are the same, the thread specifications and types are corresponding, and the thread sizes are consistent, for example: metric threads with metric threads, imperial threads with imperial threads, and it is forbidden to use staggered thread types.

The temperature of the environment and fluid should be maintained at 0~60℃.

Be careful not to use Pneumatic Push fittings in hydraulic systems. The fluid used in Pneumatic Push fittings is clean air. Pay special attention to clean air. If the air is turbid or there is too much water, the airflow will be unstable, causing the operation of equipment components to be blocked and the equipment to be damaged over time.

Specific technical test related reports

Installation tutorial of Pneumatic Push fittings.

Use a special pipe cutter to ensure that the trachea cut is smooth to avoid burrs and tilts that may cause leakage.
Press the cap of the Pneumatic Push fittings, then insert the trachea to the bottom of the joint, and loosen the cap. To remove the Pneumatic Push fittings, first press the cap and pull out the trachea.
Then perform a simple leak test. First make a simple device, fill a large-caliber container with 3/4 water, and then pass safe 0.5Mpa compressed air. Then place the connected Pneumatic Push fittings in the container to check for bubbles. If there are no bubbles, the installation is successful.

Typical application scenarios of Pneumatic Push fittings.

With the continuous development of science and technology, the increase in labor costs, and the fierce competition in all walks of life, more and more users have higher and higher demands for product quality, and the full-scenario automation mode is fully opened.
Pneumatic systems are indispensable in the field of automation, so Pneumatic Push fittings are crucial in the pneumatic series.
Pneumatic Push fittings have a wide range of applications: such as automobile manufacturing, robot connection in various processes, farmland irrigation, water nozzle connection, cleaning service places, cleaning gun connection, industrial manufacturing workshop, pneumatic component connection, medical equipment, spray painting workshop, furniture woodworking industry, packaging machinery and other fields.

Pneumatic Push fittings recommended by famous brands.

Based on years of pneumatic experience and knowledge, we recommend the following Pneumatic Push fittings brands: festo pneumatic fittings, smc pneumatic fittings, parker pneumatic fittings, janatics pneumatic fittings, legris pneumatic fittings, rs pneumatic fittings, etc. These brands are well-known in the global market. They have long service life and mature technology. What MYFEQD pneumatic fittings does is the quality policy of big brands, which is also worth considering, and the price is much more affordable.

FAQ

· Can pneumatic quick-connect fittings be used for water and oil pipes?

It cannot be used for oil because the pressure of gas is different from that of oil. For example, in a low-pressure system, the gas pressure is between 0 and 0.1 MPa and the oil pressure is between 0 and 5 MPa.

· What should I do if the connector leaks after repeated plugging and unplugging?

First of all, we need to know why it leaks. The reasons for the leakage are: 1. The air pipe was not cut flat during installation, resulting in incomplete sealing and fitting; 2. The air pipe was not inserted into place during installation; 3. The stainless steel retaining spring did not rebound and tighten; 4. Repeated plugging and unplugging caused damage to the accessories in the pneumatic components.
It is recommended to replace it with a new one and choose a high-quality pneumatic connector that can be plugged and unplugged repeatedly.

· How to distinguish between Metric and British Standard (BSPP) threads?

Measure the pitch, use a caliper to measure the distance between two adjacent crests (mm).
Observe the tooth profile. Metric thread profile is sharp, with an angle of 60°. BSPP thread profile is round, with an angle of 55°.

· Why is there a slight leak?

The air pipe and the sealing ring inside the joint are not completely fitted, or the air pipe and the joint are not connected in a straight line and are in an angled state. You can just pull it out and reinstall it. If the air pipe needs to be bent, choose an elbow joint.

· Why does the trachea fall off after a short period of use?

That is because the clamp ring or air pipe has aged and broken due to long-term environmental and other reasons, and the toughness of the stainless steel clamp spring has disappeared. It is recommended to replace it with a new one.

I believe that you will have a deeper understanding of Pneumatic Push fittings after reading this page.
If you have any other questions? Or need to purchase, or learn more about related pneumatic fittings. You can check other product pages of our company.
We have 15 years of experience in the pneumatic industry. You are the pneumatic expert around you and you are worthy of trust. More trust also gives us more opportunities. Please contact us quickly and we will answer your needs as soon as possible.

Pneumatic Push fitting

What is it ?

Pneumatic Push fitting core functions

Quick connect and disconnect

Wide range of applications

Easy maintenance

Strong flexibility

What are the main types of Pneumatic Push fittings?

Pneumatic Male Connector

PC straight thread fittings

PC straight thread fittings

POC straight thread fittings

PCF straight thread fittings

PCF straight thread fittings

PC Metal fittings/Brass push fittings

POC Metal fittings/Brass push fittings

PCF Metal fittings/Brass push fittings

PU Pneumatic straight connector

PU---Union straight fitting

PU Pneumatic straight connector

PG pneumatic reducer fittings

PG pneumatic reducer fittings

PG pneumatic reducer fittings

pneumatic elbow

PL pneumatic elbow

PL pneumatic elbow

PH 90 degree air fitting

PL pneumatic elbow

PL pneumatic elbow

PH 90 degree air fitting

Metal elbow connector

PV Union elbow fitting

PV Union elbow fitting

Metal elbow connector

PLL pneumatic elbow

Union Tee fitting

PB pneumatic tee fitting

PD pneumatic tee fitting

PX y air fitting

PB pneumatic tee fitting

PB pneumatic tee fitting

PX y air fitting

PB metal t connector

PD metal t connector

PX y air fitting

PE pneumatic tee fitting

PEG Union Tee fitting

PY air fitting

PW y air fitting

PE pneumatic tee fitting

PEG Union Tee fitting

PY air fitting

PW y air fitting

PY air fitting

PW y air fitting

PE pneumatic tee fitting

PEG Union Tee fitting

Multiple connection points pneumatic push in air fittings

PZA 4 way air fitting

PK 5 way air fitting

PKG fitting reducer

PM air bulkhead fittings

PZA 4 way air fitting

PK 5 way air fitting

PM air bulkhead fittings

PM air bulkhead fittings

PKG fitting reducer

PMF air bulkhead fittings

PLM air bulkhead fittings

PKD fittings

pneumatic blanking plug

pneumatic blanking plug

pneumatic blanking plug

Key design structure of Pneumatic Push fitting

Important factors affecting its stable use and lifespan

2.Classification by functional style.

3.Classification by interface type

4.Classification by material

What are the advantages of Pneumatic Push fittings?

How to choose Pneumatic Push fittings?