Water Main Stopcock Key - 0.5 Inch Box Head

The Primaflow water main stopcock key is designed for operating external stopcocks located at the ...

Best current price£12.41from Professional Building Supplies

All Offers

3 offers from £12.41 - £45.44

View price history by clicking the chart icon.

Professional Building SuppliesPrimaflow Water Main Stopcock Key
Free delivery in 1–3 days
£12.41
Visit shop
eBay1/2"" Box Head Silver Socket - 92500
Free delivery in 1–3 days
£43.50
Visit shop
B&QB&Q - Silver Water Mains Key 0.5" Box Head
Free delivery in 1–3 days
£45.44
Visit shop

Product Information

Full details

The Primaflow Water Main Stopcock Key is an essential tool for homeowners and plumbers who need to access external stopcocks located deep within service chambers. It allows for the safe and efficient operation of water supply valves without the need for physical entry into confined spaces, offering a durable steel solution for turning stubborn or seized valves. While its specialized 1/2 inch box head is designed specifically for standard square valve spindles, users should verify their spindle size before use, as it may not fit non-standard or larger industrial valves.

All features

Model Part Number0.5
BrandPrimaflow

Extended Product Information

FAQs

Will this fit all water main stopcocks?

It is designed to fit the standard 1/2 inch square spindle found on most residential stopcocks, but it will not fit round handwheel-type valves.

Is the shaft foldable?

No, the shaft is a solid, single-piece steel construction for maximum durability and leverage.

Can I use this for indoor stopcocks?

While it can turn indoor valves, its 1050mm length makes it impractical for most indoor under-sink locations.

What if the valve is damaged?

If the square spindle head is rounded or heavily corroded, this tool may not be able to grip it securely, and professional intervention may be required.

Is the steel rust-proof?

The tool is made from durable steel; while it is robust, it should be wiped down and stored in a dry place to prevent surface rust over time.

Troubleshooting

The key slips off the valve spindle

Ensure the service chamber is clear of debris so the box head can fully engage with the square spindle head.

The valve will not turn despite using the T-handle

Do not force it aggressively; apply penetrating oil to the valve mechanism and allow it to soak before trying again with steady pressure.

Pros and Cons

Pros

  • Eliminates the need to crawl into or reach deeply into service chambers
  • Provides ample leverage for seized or stiff valves
  • Durable steel build prevents bending or warping under pressure
  • Simple, non-mechanical design ensures reliability

Cons

  • Specific to 1/2 inch square spindles
  • Length makes it slightly cumbersome to store in standard toolboxes
  • Not compatible with round wheel-style valve handles

Setup, Compatibility & Care

No assembly is required for this tool; it is ready to use immediately. Before attempting to turn a valve, ensure the box head is fully seated over the square spindle to prevent rounding off the metal.

Compatibility

  • Spindle Type: Fits 1/2 inch square spindles commonly found on UK water mains.
  • Environment: Suitable for external service chambers and utility pits.

Care Instructions

  • Cleaning: Rinse off any dirt or debris from the box head after use to prevent corrosion.
  • Storage: Store in a dry, covered area to maintain the integrity of the steel.
  • Inspection: Periodically check the weld between the T-handle and the shaft for any signs of structural fatigue.

Similar items

Price History

DatePrice
Visit shop