Inlet Hoses Weeping Under Pressure or Quick-Connectors Pulling Off After a Few Re-fits? NL-HQC-6 Hose & Quick-Connector Pressure, Pulse & Pull-Off Bench Runs Six Stations (pump performance test)

Inlet hoses weeping at the joint once pressurised, or quick-connectors pulling off after a few re-fits and flying loose under line pressure, are among the most frequent leak sources in water purifiers and washing machines. The cause is usually insufficient hose pressure margin, connector claws losing elasticity, or seals with too little compression — all degrading progressively through repeated pressurising and re-fitting. Incoming inspection often stops at appearance and single-part dimensions, so the hose’s real pressure margin and the connector’s holding force are simply not measured.

What the NL-HQC-6 hose and quick-connector pressure, pulse and pull-off bench measures

• Six stations in parallel, pressurising with water (or gas) step by step to a set pressure, with proof and burst pressure logged automatically (sharing the constant-pressure supply and pressure-metering module of our pump performance test benches)
• Water-hammer pulse cycling: fast valve action generates pressure surges, with peak pressure and waveform logged throughout and fatigue trends output automatically
• Quick-connector re-fit and pull-off force testing, with holding-force decay filed against re-fit count and automatic NG judgement below the threshold
• Seal hold-pressure testing, quantifying pressure decay and leak rate and localising micro-leaks to the connector or the hose body
• Temperature cycling to reproduce pressure-margin decay of hoses and seals under hot-water conditions
• Barcode and batch binding, with raw data exported per unit for incoming-lot comparison

Applicable standards

GB 4706.1 (household appliances – general safety), GB/T 30307 (household and similar drinking water treatment units), GB/T 23448 (sanitary ware – hoses) and GB/T 5563 (rubber and plastics hoses and hose assemblies – hydrostatic testing); criteria can be set as multiples of the machine’s working pressure per the customer's standard.

Stations and throughput

Six stations in a 24/7 design bring tens of minutes of manual pressure testing and hand fitting down to about ten minutes per unit, while water-hammer pulse fatigue is completed within weeks — so both incoming lots and end-of-line assemblies can be sampled batch by batch, stopping leaking and flying hoses before shipment.

Manufacturer

Guangdong Endurance Electronic Equipment Co., Ltd. — a non-standard testing equipment manufacturer of hose and quick-connector pressure, pulse and pull-off benches, pump test bench and pump performance test systems, level sensor life test machines, dishwasher test equipment and washing machine test equipment.

Keywords: pump test bench, pump performance test, level sensor life test, dishwasher test equipment, washing machine test equipment.