Removing a radiator valve involves carefully loosening the connections to the radiator and the pipework. Here's a step-by-step guide:
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Isolate the Radiator: Before you begin, make sure to isolate the radiator. This usually involves closing both the radiator valve you're removing and the lockshield valve on the other side of the radiator. You may also need to drain the radiator slightly to prevent leaks.
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Prepare Your Tools: You'll need the following tools:
- A wrench (adjustable or appropriately sized spanner)
- A pair of grips (e.g., adjustable pliers or a similar tool)
- A container to catch any drips.
- Towels or rags.
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Loosen the Radiator Connection Nut:
- Use the grips to hold the body of the radiator valve securely.
- With your wrench, loosen the nut connecting the valve to the radiator (the nut closest to the radiator).
- Turn the nut slowly in an anti-clockwise direction.
- Do not remove the nut completely at this stage; just loosen it significantly.
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Loosen the Pipe Connection Nut:
- Using your wrench, loosen the nut connecting the valve to the pipework below the radiator.
- Again, turn the nut slowly in an anti-clockwise direction.
- As before, do not remove the nut completely.
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Remove the Valve:
- With both nuts loosened, you should be able to gently wiggle the valve.
- Carefully pull the valve away from the radiator and the pipework simultaneously.
- Have your container and towels ready to catch any water that may spill out.
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Clean Up: Once the valve is removed, clean up any spilled water.
Important Considerations:
- Water Pressure: Even after isolating the radiator, there may still be some residual water and pressure. Be prepared for some spillage.
- Tight Connections: The nuts can be very tight, especially if they haven't been touched in a long time. Applying penetrating oil (such as WD-40) a few hours beforehand may help.
- Replacing the Valve: If you are replacing the valve, ensure the new valve is compatible with your radiator and pipework. Use PTFE tape on the threads to create a watertight seal when installing the new valve.
- System Re-Pressurization: After replacing the valve, you'll need to re-pressurize the heating system. Consult your system's manual or a qualified professional if you're unsure how to do this.
- Professional Help: If you are not comfortable with plumbing work, it's always best to consult a qualified plumber.
