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Bleed Valves & Blanking Plugs

Radiator bleed valves let you release air that has collected inside a radiator. If the top of your radiator stays cold while the bottom heats up, trapped air can be one possible cause. Our range includes manual bleed valves as well as selected automatic air vents for compatible radiators.

Radiator blanking plugs are used to close unused threaded openings in compatible radiators. Many options combine a bleed valve and blanking plug as a matching pair, while individual blanking plugs are also available. Check the thread size and radiator specifications before choosing a replacement.

These small heating accessories are often visible, so it makes sense to coordinate them with the rest of your radiator. Choose radiator bleed valves, blanking plugs and radiator cover caps in finishes including chrome, white, black, anthracite, brass, nickel and copper to keep everything looking consistent.

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Chrome Radiator Caps Large Image

£4.95

The stock status is In Stock

In Stock

6

5 out of 5 review stars
ChromeMatt BlackAnthraciteWhite

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Matt Black Radiator Cover Caps

£5.95

The stock status is In Stock

In Stock

1

4 out of 5 review stars
Matt BlackChromeAnthraciteWhite

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Chatsworth Radiator 1/2" Bleed Valve & Blanking Plug White

£9.95

The stock status is In Stock

In Stock

13

4.8 out of 5 review stars

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White Radiator Cover Caps

£4.95

The stock status is In Stock

In Stock

1

5 out of 5 review stars
WhiteChromeMatt BlackAnthracite

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Anthracite Radiator Cover Caps

£5.95

The stock status is In Stock

In Stock

AnthraciteChromeMatt BlackWhite

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Chatsworth Radiator 1/2" Bleed Valve & Blanking Plug Antique Brass

£9.95

The stock status is In Stock

In Stock

26

5 out of 5 review stars

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1 x Traditional 1/2" Chrome Ball Air Vent Large Image

£6.95

The stock status is In Stock

In Stock

Chatsworth Radiator 1/2" Bleed Valve & Blanking Plug Matt Black

£9.95

The stock status is In Stock

In Stock

26

4.8 out of 5 review stars

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Chatsworth Radiator 1/2" Bleed Valve & Blanking Plug Brushed Brass

£9.95

The stock status is In Stock

In Stock

10

4.8 out of 5 review stars

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Chatsworth Radiator 1/2" Bleed Valve & Blanking Plug Anthracite

£9.95

The stock status is In Stock

In Stock

28

4.9 out of 5 review stars

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Aladdin Autovent & Blanking Radiator Plug Chrome - HV30C Large Image

£14.95

The stock status is In Stock

In Stock

8

4.9 out of 5 review stars
Chatsworth Radiator 1/2" Bleed Valve & Blanking Plug Chrome

£9.95

The stock status is In Stock

In Stock

7

5 out of 5 review stars

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Chatsworth Radiator 1/2" Bleed Valve & Blanking Plug Rustic Brass

£9.95

The stock status is In Stock

In Stock

1

5 out of 5 review stars

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Chatsworth Radiator 1/2" Bleed Valve & Blanking Plug Black Nickel

£9.95

The stock status is In Stock

In Stock

1

5 out of 5 review stars

More Options

Chatsworth Radiator 1/2" Bleed Valve & Blanking Plug Antique Copper

£9.95

The stock status is In Stock

In Stock

1

5 out of 5 review stars

More Options

Chatsworth Radiator 1/2" Bleed Valve & Blanking Plug Brushed Nickel

£9.95

The stock status is In Stock

In Stock

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Chatsworth Radiator 1/2" Bleed Valve & Blanking Plug Gold

£9.95

The stock status is In Stock

In Stock

1

5 out of 5 review stars

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Chatsworth Radiator 1/2" Blanking Plug - White

£8.95

The stock status is In Stock

In Stock

1

4 out of 5 review stars
Chatsworth Radiator 1/2" Blanking Plug - Matt Black

£8.95

The stock status is In Stock

In Stock

Chatsworth Radiator 1/2" Blanking Plug Anthracite

£8.95

The stock status is In Stock

In Stock

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Recently Reviewed

Chatsworth Radiator 1/2" Bleed Valve & Blanking Plug Matt Black

Radiator plug

10th November 2026

Look great

Sally S from Kent- verified purchaser

Chatsworth Radiator 1/2" Bleed Valve & Blanking Plug White

Gives a nice finish

8th November 2026

Gives the radiator a nice finish and goes better with colour scheme

Kerry B from - verified purchaser

Chatsworth Radiator 1/2" Blanking Plug - White

Gives a nice finish

8th November 2026

Gives the radiator a nice finish and goes better with colour scheme

Kerry B from - verified purchaser

Chatsworth Radiator 1/2" Bleed Valve & Blanking Plug Brushed Brass

Great purchase

24th October 2026

Looks lovely in my new bathroom.

Francesca B from - verified purchaser