How to Choose Pneumatic Fittings for Automation Systems

There are a wide variety of pneumatic fittings on the market

And how do we know which is the best suitable for us?

1/Choose from raw materials

The commonly used materials for manufacturing pneumatic fittings are as follows

PBT Plastic

Stable dimensional performance

Working Temperature:-10~60° After enhancement 120~140°

Materials economical and affordable its most use for manufacturing pneumatic fittings

PA Nylon

Wear resistant and oil resistant

Working Temperature:120-140° After enhancement 180-200°

Hydrolysis-resistant applicable to water piping systems

Iron Thread

Too hard to process, easy to rust, economical in price

Aluminum Alloy（Through salt spray testing)

Suitable for environments where copper and zinc are prohibited

Zinc Alloy

Copper substitute, but prone to corrosion

Copper Thread （C3604）

Easy to process, as the main material for pneumatic fittings(In recent years, prices have been too expensive)

Stianless Steel (304)

High temperature, high pressure, and corrosion resistance, suitable for various fluids

Stianless Steel (316L)

Food-grade,Products used for contact with medical food

Ttanium Alloy

Characteristic you Know

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2/Choose from application scenarios

① Ordinary self use spare parts (PBT+Iron or Copper)

② Installation of constant temperature equipment (PBT+Copper)

③ Use of new energy electric vehicles 

Prohibition of copper zinc environment

(PBT+Aluminum Alloy)(Nylon+Aluminum Alloy)

④ Outdoor pneumatic equipment（PBT+Copper）（Nylon+Copper）（Zinc Alloy）

⑤ Precision instruments and equipment （PBT+Copper）（Stianless Steel）

⑥ Resistant to high temperature and high pressure environments（Stianless Steel）

⑦ Clean grade equipment or assembly line （Stianless Steel 316L)

3/Choose from accuracy requirements

① As long as it works, it's fine （PBT+Iron or Copper）

② Precision instruments and equipment （PBT+Copper）（Stianless Steel）

③ Stable and durable （Copper）（Stianless Steel）

④ Stable, durable, and economical （PBT+Copper）（Stianless Steel）