John Guest Speedfit PP480821W 1/4 OD b 1 / 8NPTF with check Valve knee with a check valve 1/8 "RN x 1/4" to the pipe fitting for membrane housing

Corner adapter with check valve John Guest Speedfit PP480821W with check Valve with male thread 1/8 and quick accession to 1/4 inch tube.

Typically used for connection to the central door housing the membrane.

The check valve is required for proper operation of the automatic reverse osmosis system. When water is taken into the tank and the pressure in the drinking (net) of the system increases to the desired value, the four-way valve closes the flow to the membrane and stops the filtration process. Without the check valve portion of pure water can seep through the membrane in the opposite direction; Pressure drops in the drinking portion and the system restarted. In some cases, no osmosis can dial pressure clean part and OFF. The check valve prevents the process.

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