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 - Easy to fit. Suitable for most Radiator. Eliminates the risks of having exposed radiator valve spindles. Universal push-fit cap. Length: 36 mm, diameter bottom: 25 mm and diameter top: 20 mm. Available in a white colour.
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 - Replacement standard head for Myson TRV 2-way Thermostatic Radiator Valve. 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. Interchangeable with Myson 'Contract' Thermostatic Head head with no red markings. Head only supplied - valve is NOT included.
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 - Improves the apperance of radiators. Eliminates the risks of having exposed radiator valve spindles. Universal fitting.
BrandPlumb Pak
Part NumberPPF248AMZ

4. Afriso

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

Afriso - Max. Nominal pressure: PN10 Operating temperature 120 °C. 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


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

TERF - Image is for illustrative purposes. Protection nut and bolts : these pe hex nuts cap can protect the bolts from rust water, prevent bolt corrosion, reduce dust pollution and rain, etc. Dust, beautify the appearance, thereby extending the life of the bolt.

Premium plastic: made with high quality pe plastics, good toughness, difficult to deform. Provide external nuts and bolts to prevent weathering and damage. Wide application: suitable for machine equipment, valve, petrochemical, gas pipeline, bridge base guardrail, street light and other places. Intended for hexagon shaped bolts & Nuts, enhance Finished to Nuts & Bolt Heads, Easy to fit and to remove.

Please make your size selection from the drop down menu. The plastic hexagon nut cover is corrosion resistant, light weight, sturdy, prevents ultraviolet rays with good low temperature resistance, does not age, and protects nuts and bolts. 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.
Part NumberTERF - Hex Nut & Bolt Cap Cover

6. Blauberg

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

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

7. Excel Home

Excel Home Traditional Radiator Valves Chrome

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


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

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

9. Bailey

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

Bailey - Brass wing nuts. Steel plates. Centre locking drain test plug. For air or water testing of drains and sewers.
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