Estimated deliveryCheck delivery detailsMost Mainland UK postcodes
✓ Order before 1pm*✓ Free shipping over £25↶ 30-day returns: terms apply
Delivery timing & exceptions
*For in-stock radiators ordered before 1pm on a working day. Orders after 1pm dispatch the next working day. Weekends, bank holidays and postcode exceptions can affect timing.
Ask us on WhatsApp 07949 448 870
Chat and WhatsApp daily, 7am–10pm UK time.
Free UK shipping on orders over £25 · 30-day returns: terms apply
The finishing touches
Chrome Radiator Blanking Plug, Bleed and Cap Valve Kit
No reviews
1/2 BSP Radiator Bleed Valve, Plug & Chrome Cap Kit in solid brass. Includes leak-proof air vent, blanking plug and polished chrome caps.
£8.39
Available to order
- Specification
- Value
- Thread Size
- 1/2" BSP
- Bleed Valve Type
- Manual Air Vent
- Material
- Solid Brass
✓ 1 year warranty. Terms apply.
Product specifications
- Specification
- Value
- Thread Size
- 1/2" BSP
- Bleed Valve Type
- Manual Air Vent
- Material
- Solid Brass
- Finish
- Polished Chrome
- Seal Type
- EPDM O-Ring
- Cap Type
- Push-Fit Chrome Cover
- Warranty
- 1 year; terms apply
About Chrome Radiator Blanking Plug, Bleed and Cap Valve Kit
1/2" BSP Chrome Radiator Blanking Plug, Bleed Valve & Concealing Cap Kit for Heated Towel Rails
The Complete Installation & Finishing Kit for Heated Towel Rails
Complete the installation of your heated towel rail, towel radiator or central heating radiator with this professional-grade 1/2" BSP chrome blanking plug, bleed valve and concealing cap kit. Manufactured from heavy-duty solid brass with a polished chrome finish, the components provide a durable, corrosion-resistant and watertight solution for modern central heating systems.
Engineered with universal threads, the heavy-duty solid brass core delivers a long-lasting, leak-proof seal. The high-shine chrome concealing caps push-fit smoothly over the exposed valve heads, hiding raw metal pins to perfectly complement your chrome heated towel rails and designer radiators. Suitable for both new radiator installations and replacement applications, this kit combines reliable sealing performance with a clean, finished appearance.
Key Product Features
- Universal Compatibility: Fits most modern UK central heating radiators, designer panels, and ladder towel rails with standard 1/2" connections.
- Leak-Free Protection: Functional plugs are equipped with premium rubber EPDM O-rings for secure, compression-sealed performance.
- High-Shine Chrome Finish: Includes matching push-fit decorative caps that snap directly onto the brass fittings to deliver a mirror-like look.
- All-In-One Solution: Eliminates the need to buy venting pins and blanking caps separately, packaging aesthetic upgrades with crucial plumbing utility.
What's Included in the Box?
- 1 x 1/2" BSP Manual Bleed Valve (Air Vent for releasing trapped air)
- 1 x 1/2" BSP Radiator Blanking Plug (To permanently seal the opposite top port)
- 2 x Chrome Push-Fit Concealing Cover Caps (For a mirror-polished finish)
- Pre-installed EPDM O-Rings (Premium rubber washers for water-tight compression)
Installation Guide & Fitting Instructions
Installing this kit requires no specialized plumbing expertise. Simply screw the manual bleed valve and blanking plug into the radiator's threaded top ports. Tighten securely using an appropriate spanner or Allen key, ensuring the pre-installed EPDM rubber O-rings are squarely seated against the radiator entry to create a compressed, watertight seal. Once tightened, line up the decorative chrome caps and press them directly onto the brass fittings until they sit flush against the top bars for a clean, tool-free finish.
Compatibility & System Suitability
This universal hardware kit is fully compatible with the vast majority of UK wet central heating systems. It is engineered specifically to match standard 1/2" BSP connections on modern chrome heated towel rails, ladder towel radiators, horizontal designer radiators, vertical designer panels, compact single/double panel radiators, and traditional steel column radiators.
Ideal Replacement Hardware For:
- Leaking Blanking Plugs: Resolves a radiator leaking from the blanking plug due to perished or cracked old rubber washers.
- Worn Bleed Valves: Replaces rounded, stripped, or rusted manual air vent pins that can no longer be turned with a radiator key.
- Corroded Towel Rail Fittings: Upgrades old, rusted, or discolored raw brass end plugs with a premium, rust-resistant solid brass core.
- Missing Finish Caps: Replaces lost or damaged chrome towel rail end caps to instantly restore a unified, high-shine bathroom aesthetic.
Common Applications
- Replacement radiator bleed valve
- Towel rail blanking plug
- Chrome radiator end cap
- Radiator air vent
- Radiator vent plug
- Heated towel rail finishing kit
Technical Specifications
| Specification | Value |
|---|---|
| Thread Size | 1/2" BSP |
| Bleed Valve Type | Manual Air Vent |
| Material | Solid Brass |
| Finish | Polished Chrome |
| Seal Type | EPDM O-Ring |
| Cap Type | Push-Fit Chrome Cover |
Delivery, returns & warranty
Check delivery details and the return policy. This product has a 1 year warranty; terms apply.
Questions about Chrome Radiator Blanking Plug, Bleed and Cap Valve Kit
Does this kit include both the bleed valve and blanking plug?
Yes. The kit includes one manual bleed valve, one radiator blanking plug, two chrome concealing caps and pre-installed EPDM O-rings, providing everything required to complete the top connections of a heated towel rail or radiator.
Will this full kit fit my standard towel rail?
Yes. The air vent and blanking plug utilize standard 1/2" BSP threads, which is the uniform dimension across almost all modern central heating radiators and towel rails sold in the UK.
Is this kit suitable for both horizontal and vertical radiators?
Yes. The fittings connect to standard 1/2" BSP threaded ports and are suitable for vertical designer radiators, horizontal panel radiators, ladder towel rails, and most other modern wet central heating radiators.
Do I need to use plumbing tape (PTFE) on these threads?
Our brass fittings feature integrated compression O-rings engineered to form a clean seal autonomously. However, wrapping a few turns of PTFE tape around the threads is still a recommended industry best practice to mitigate internal microscopic flaws within older or painted radiator threads.
How do the decorative chrome caps mount?
The caps use a tool-free push-fit design. Once you have firmly tightened the underlying brass air vent and blanking plug into the top ports with an appropriate spanner or Allen key, line up the chrome covers and push them directly onward until they seat flush against the top bars.
What warranty comes with Chrome Radiator Blanking Plug, Bleed and Cap Valve Kit?
This product comes with a one-year warranty. Terms apply.