Hyco Pressure Reducing Valve - SF5

WRAS approval signifies that the product has been checked and meets the Water Regulations Advisory Scheme's standards for water quality, safety, and performance in the UK.

The Hyco SF5 valve comes pre-set at 3 bar and is not designed for user adjustment. For systems requiring a different pressure, a different model or professional modification might be necessary.

It is good practice to visually inspect the valve and its connections for leaks during routine checks of your water heater, typically during annual servicing.

Using an unvented water heater without a correctly set pressure reducing valve can lead to excessive pressure build-up, potentially damaging the heater, causing leaks, and posing a safety risk.

No, the SF5 is specifically designed for Hyco Speedflow unvented water heaters. It is not universally compatible with all water heater models or brands.

Please refer to the Hyco product documentation or your point of purchase for specific warranty details, as warranty periods can vary.

Check that the main water supply is on and the valve is correctly installed. Ensure there are no blockages in the water heater's inlet or outlet pipes. If the issue persists, contact a qualified plumber.

Turn off the water supply immediately. Check that all connections are tight and correctly sealed. If leaks continue, the valve may need replacement by a qualified professional.

Verify that the SF5 valve is correctly installed and that the incoming mains pressure is sufficient. Ensure the water heater itself is not the source of low pressure. Consult a plumber to test the system pressure.