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Hose negative pressure resistance test stand

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Detail

Test of the change of outer diameter of vacuum brake hose assembly after negative pressure resistance:

1. Take a brake hose with a length of 304 mm and one end sealed to measure the outer diameter of the brake hose;

2. Connect the brake hose to the vacuum pressure source, apply to the brake hose vacuum degree 85 kPa ± 3 kPa pressure for at least 5min; Measure the size of the maximum deformation of the brake hose under the vacuum degree.

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