The non return and isolating valve (NRI) provides two functions; an isolating and non-return function. The valve provides a non-return function if the upstream pressure is greater than the supply pressure, and the isolating function is used when servicing the water heater.
The non return and isolating valve (NRI) provides two functions; an isolating and non-return function. The valve provides a non-return function if the upstream pressure is greater than the supply pressure, and the isolating function is used when servicing the water heater.
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The non return and isolating valve (NRI) provides two functions; an isolating and non-return function. The valve provides a non-return function if the upstream pressure is greater than the supply pressure, and the isolating function is used when servicing the water heater.
The non return and isolating valve (NRI) provides two functions; an isolating and non-return function. The valve provides a non-return function if the upstream pressure is greater than the supply pressure, and the isolating function is used when servicing the water heater.
Last updated at 16/11/2024 21:15:03
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