Is it necessary to have to adjustable pressure relief valve and a t&p valve on a gas water heater, or can this be bypassed?
Water – adjustable pressure relief valve on a gas water heater
water-heater
Related Topic
- Plumbing – Why does pressure relief valve state ‘Not for Use with Water Heaters’
- Water heater temperature and pressure relief valve plumbing
- Plumbing – Capped Water Heater Pressure Relief Extension Pipe
- Water – What happens if I have two water heaters and one’s over-pressure relief valve fails
- Water – Cupric chloride on pressure relief valve of gas water heater
- Water – Gas Water Heater leaking water out of the temperature and pressure valve. Could the water pressure regulator contribute to the issue
- Plumbing – Could a pressure relief valve that drains up cause the water heater to explode
Best Answer
Yes !!! it is absolutely necessary to have a T&P valve to prevent the water heater from exploding if for some reason the pressure was to become to great and keep building. If the pressure in the water heater increase above the safe limit the T&P valve will open and allow some of the expanding water to escape out until the pressure reduces to a safe level, then the spring in the valve will close again.
I have not heard of an adjustable pressure valve for a water heater, Some home have a pressure regulator on the incoming water supply line so you can set (reduce) the water pressure to some other value than the incoming pressure from the city supply.