Top 9 locking valve Caps UK – Radiators

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1. Merriway

Set of 4 Pieces Push, Pack of 4, Merriway BH01946 Universal Fit Plastic Radiator Cap-White

Merriway - Available in a white colour. Easy to fit. Universal push-fit cap. Suitable for most Radiator. Length: 36 mm, diameter bottom: 25 mm and diameter top: 20 mm. Eliminates the risks of having exposed radiator valve spindles.
ManufacturerBulk Hardware
Height22.5 cm (8.86 Inches)
Length12.5 cm (4.92 Inches)
Weight0.03 kg (0.07 Pounds)
Width5 cm (1.97 Inches)
Part NumberBH01946

2. Myson

Myson Standard Thermostatic Radiator Valve Replacement Head Only TRV 2 WAY

Myson - See 4th photograph for instructions on how to fit the head to the valve. See 4th photograph for explanation of what the 2 metal pins are for and how to fit them. Head only supplied - valve is NOT included. Interchangeable with Myson 'Contract' Thermostatic Head head with no red markings. Replacement standard head for Myson TRV 2-way Thermostatic Radiator Valve.
Height4.6 cm (1.81 Inches)
Length3.45 cm (1.36 Inches)
Width2.29 cm (0.9 Inches)
Part Number2TRV HEAD

3. Plumb Pak

Plumb-Pak PPF248AMZ Universal Replacement Radiator Cap Push On with Assorted Spindle Drivers

Plumb Pak - Eliminates the risks of having exposed radiator valve spindles. Improves the apperance of radiators. Universal fitting.
BrandPlumb Pak
Part NumberPPF248AMZ

4. Afriso

1 pc, Afriso Cap Valve 77924 Mebran Expansion Vessels 3/4 Inch

Afriso - Nominal pressure: PN10 Operating temperature 120 °C. Max. Brass 3/4 Female. Drain valve with locking and wire.
Height7 cm (2.76 Inches)
Length16 cm (6.3 Inches)
Width4 cm (1.57 Inches)
Part Number77924


TERF® M10 Black Plastic Hex Nut Bolt Dome Cap Cover M10 17mm Spanner Nut and Bolt Protective Caps Cover Hexagonal, Pack of 20

TERF - Premium plastic: made with high quality pe plastics, sturdy, light weight, does not age, good toughness, difficult to deform. Wide application: suitable for machine equipment, bridge base guardrail, gas pipeline, valve, petrochemical, street light and other places.

Image is for illustrative purposes. Package content: 20 pcs approx quantity hex nuts and bolt dome cap protective Cover M10 17mm Spanner Note :- Before Buy Please Check Your Require Nut and Bolt Cap Hex Cover Size and Pack Size. Provide external nuts and bolts to prevent weathering and damage. Please make your size selection from the drop down menu. The plastic hexagon nut cover is corrosion resistant, prevents ultraviolet rays with good low temperature resistance, and protects nuts and bolts.

Intended for hexagon shaped bolts & Nuts, enhance Finished to Nuts & Bolt Heads, Easy to fit and to remove. Protection nut and bolts : these pe hex nuts cap can protect the bolts from rust water, reduce dust pollution and rain, etc. Beautify the appearance, dust, prevent bolt corrosion, thereby extending the life of the bolt.
Part NumberTERF - Hex Nut & Bolt Cap Cover

6. Blauberg

4 inch White Round Ceiling Vent Diffuser Extract Grille Valve with Retaining Ring for Toilet Bathroom Office Health and Child Care Flush Fitting, Blauberg UK 100 mm

Blauberg - Temperature and uv-resistant antistatic plastic. Easy to install with a mounting flange. Directly connect to duct and clip into the ceiling with circlip provided. Prime quality adjustable ceiling-mounted air valve grille finished in brilliant white plastic. Smooth airflow control. The disc is mounted on a central threaded core for an adjustment that can be locked to prevent tampering. The vent diffuser is suitable for ducting with a 100mm 4" connection and can be used for supply and exhaust ventilation. A preferred choice for MVHR heat recovery systems.
Manufacturer‎Blauberg UK

7. Excel Home

Excel Home Traditional Radiator Valves Chrome

Excel Home - Incorporates standard 1/2" threads and 15mm compression fittings. Solid brass and ABS construction with Chrome or Brass finish. Traditional pair of angled thermostatic radiator valves. Temperature range: -10 °C to 110 °C. Adjustable cap and lock-shield for manual regulation of radiator temperature.
BrandExcel Home
ManufacturerExcel Home


EXPERT VALVE SPRING COMPRESSOR 35-142MM CAPACITY, Expert Quality, with plastic coated locking handle. When locked on keeps valve springs positively compressed, double ended cap support for maximum ve

DRP HQ - Heavy duty Draper Tools. Expert valve spring compressor 35-142mm capacity. Extremely sorry that we are unable to ship this item to Worldwide. Please note that the delivery time for tis product is 3-5 days. Manufactured from high Quality Materials.
ManufacturerDRP HQ

9. Bailey

Bailey 2416 4-Inch C/W Drain Test Plug with Brass Cap

Bailey - Steel plates. Centre locking drain test plug. For air or water testing of drains and sewers. Brass wing nuts.
Height7.9 cm (3.11 Inches)
Length9.1 cm (3.58 Inches)
Weight0.34 kg (0.75 Pounds)
Width9.1 cm (3.58 Inches)
Part Number2416