STD Radiator Brass Bleed Keys Clock Type Pack of 2

STD Radiator Bleed Keys Clock Type Pack of 2

MPN: 409146-864777

Overview:

The STD Radiator Brass Bleed Keys Clock Type Pack of 2 provides a simple, reliable way to bleed trapped air from radiators and keep heating systems running efficiently. Made from durable brass, these traditional clock-style keys are designed to fit most standard radiator bleed valves, offering a secure grip and smooth operation. Supplied in a handy twin pack, they’re ideal for keeping one key at home and another in the van, toolbox or on your keyring for quick, convenient heating maintenance.

Key Features

• Traditional clock-type radiator bleed keys

• Solid brass construction for strength and corrosion resistance

• Fits most standard square radiator bleed valves

• Easy to grip and turn, even in tight spaces

• Helps release trapped air to improve radiator performance

• Supplied as a cost-effective pack of 2

• Compact size – ideal for toolboxes, draw units or keyrings

• Suitable for domestic and light commercial heating systems

Specifications

• Brand: STD

• Product Type: Radiator bleed keys

• Style: Clock type

• Material: Brass

• Finish: Plain brass

• Quantity: Pack of 2 keys

• Usage: Manual bleeding/venting of radiators

• Compatibility: Most standard square bleed valves on panel radiators

Applications

• Bleeding trapped air from central heating radiators

• Routine heating system maintenance in homes and small commercial premises

• Improving radiator heat output and system efficiency

• Keeping a spare bleed key in service vans or toolkits

• Handy addition to landlord, caretaker and facilities maintenance kits

How to Use

• Turn off the heating and allow the radiator to cool before bleeding.

• Insert the brass bleed key onto the square bleed valve at the top of the radiator.

• Slowly turn the key anti-clockwise until air begins to hiss out; keep a cloth ready for drips.

• Once water starts to flow steadily, turn the key clockwise to close the valve firmly.

• Check the system pressure on sealed systems and top up if required, then turn the heating back on and confirm the radiator heats evenly.

STD Radiator Brass Bleed Keys Clock Type Pack of 2 – Key FAQs

• Will these bleed keys fit all radiators?
  They are designed to fit most standard valved radiator bleed valves commonly found on panel radiators. Very old or specialist radiators may use a different style of key.

• Why do I need to bleed my radiators?
  Trapped air stops hot water circulating properly, causing cold spots and reduced output. Bleeding releases the air, helping radiators heat evenly and improving system efficiency.

• Can I use these keys on a hot radiator?
  It’s best to bleed radiators when the heating is off and the radiator has cooled, which reduces the risk of scalding and makes the process safer and easier.

• How often should radiators be bled?
  Typically, you’d bleed radiators at the start of the heating season, after system work, or whenever you notice cold spots at the top of the radiator.

• Do I need any other tools to bleed a radiator?
  Normally just the bleed key and a cloth or small container for drips. On sealed systems you may also need to top up pressure via the filling loop afterwards.

• Why are there two keys in the pack?
  The twin pack lets you keep one key near the heating system or in a toolbox and another in a convenient spot such as a drawer or on your keyring as a backup.