What procedures does Geann follow to inspect the structure of the faucet ceramic cartridges? | Sink & Top Water Shut-Off Plumbing Valves Manufacturer | Geann

Handheld Burst Testing Machine | Two Handle Brass/Ceramic Cartridge Manufacturer | Geann

What procedures does Geann follow to inspect the structure of the faucet ceramic cartridges?

Handheld Burst Testing Machine
Handheld Burst Testing Machine

The burst test is a crucial evaluation for faucet ceramic cartridges characteristics. It's designed to prevent leakage stemming from the water hammer effect, which typically happens when a valve abruptly closes at a pipeline's endpoint. For faucets, we subject the valve cartridge to two testing conditions: valve closure and outlet closure (end point close). If the ceramic disc serves a diverting purpose, a burst test isn't essential. Our design team meticulously examines the cartridge body's structure and emphasizes the sealing part's smoothness. These elements are pivotal in successfully passing the burst test. During production, our quality assurance team periodically selects cartridges for comprehensive testing, ensuring they uphold our highest standards.

According to the clause of ASME112.18.1, it defines that the fittings shall withstand a hydrostatic test at the pressure specified in the 500 psi for 1 minute without permanent distortion or failure of the pressure envelope.
First, connect the mixing valve to the test circuit with the cartridge closed and apply the mechanical valve inlet a static water pressure of 2.5±0.05 MPa and maintain it for 60 seconds. After that, we would check if there is permanent deformation of the valve.
Mount the cartridge into the test pipeline and connect the pressure system. First, bleed off all the air in the pipe and close the valve. Open the tap and run hot water at 80±2°C through it for a period of 30 min at a flow rate of not less than 2L/min, except that taps marked cold water only shall be tested at 40±2°C. Measure the water temperature at a point 100mm upstream from the tap connection to check on flow-through temperature. Next, close the tap and apply a pressure of 3MPa and hold this pressure for 60 minutes. In the end, dismantle the tap and visually inspect if there is any breakage.

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