Daikin, AGC, CHC, Dongyue, etc

Whey need 100% proof pressure and pneumatic testing for tubing ?

*High pressure tubes

*No crazing or crackings

*Filtering leakage tubes

*No sub-standard resin

After testing, we will sift tubing don't withstand intended operating pressure. There are many different reasons to cause such phenomenon. Such as improper sintering, solvent not dried totally, substance in green compact, etc

Some tubing will leaks because of improper production process or other problem. It will be harmful as fluoroplastic usually used in punishing conditions

Many factories in China use substandard PTFE resins to reduce cost. But such tube will be with very low pressure rating. It is difficult to find it if judge by naked eyes. However, pneumatic testing will help us find problem easily.

PTFE TUBE PRESSURE RATIO (FOR REFERENCE)

PTFE TUBING TOLERANCE

Size(ID X OD)

Max Working Pressure PSI(Bar)

Burst Pressure PSI(Bar)

Inner Diameter(mm)

Tolerance(mm)

2mm x 4mm

285(19.6)

1130(78)

0.2 - 1.0 mm

± 0.05 mm

4mm x 6mm

181(12.5)

725(50)

1.01 - 2 mm

± 0.08 mm

6mm x 8mm

132(9.1)

522(36)

2.01 - 4 mm

± 0.1 mm

8mm x 10mm

100(7)

413(28.5)

4.01 - 8 mm

±0.1 mm

10mm x 12mm

84(5.8)

340(23.5)

8.01 - 12.5 mm

± 0.15 mm

12mm x 14mm

73(5)

287(19.8)

12.51 - 25 mm

± 0.2 mm

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PTFE Tube Machines

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