Outside tap
- Thread starter jaycee51
- Start date
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- Tags
- nrv outside tap
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The arrow on the SV merely indicates direction it should be fitted, it doesn't have an NRV.
You van buy outside taps with inbuilt double check valves that comply with regs.
You van buy outside taps with inbuilt double check valves that comply with regs.
1. The regulations only allow ones with a built in check valve to be used to replace an outside tap that already had one.
2. A non-return valve has a hexagonal bolt head on the outside, usually in the centre of the body.
3. The service valve is not likely to incorporate a non-return valve. If it does, it will have a hexagon on it per 2. above.
2. A non-return valve has a hexagonal bolt head on the outside, usually in the centre of the body.
3. The service valve is not likely to incorporate a non-return valve. If it does, it will have a hexagon on it per 2. above.
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Iirc you can fit one retrospectively if there wasn’t one originally
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