22mm blending valves are designed to mix hot and cold water to a safe, controlled temperature before distribution to taps, showers, or heating systems. These valves play a vital role in maintaining user safety and comfort, especially in systems where water temperatures can fluctuate or reach unsafe levels. By delivering a consistent output temperature, they reduce the risk of scalding and make hot water systems more efficient.Often used in domestic and commercial hot water applications, 22mm blending valves are commonly installed in central mixing points, such as near unvented cylinders, under sinks, or before shower outlets. Built with precision-engineered thermostatic or manual mechanisms, they ensure the ideal temperature blend for daily use. Their compatibility with 22mm pipework makes installation straightforward for both retrofit and new-build systems.

Key features and benefits of 22mm Blending Valves.

Key Features

Blends hot and cold water to deliver a safe and consistent output temperature. Ideal for protecting users from sudden hot water surges.

Key Features

Reduces the risk of scalding in bathrooms, kitchens, and healthcare environments. A must-have in systems supplying vulnerable users such as children or the elderly.

Key Features

Maintains steady temperature and pressure, even when water demand changes. Ensures comfort and reliability across all connected outlets.

Key Features

Many 22mm blending valves meet stringent UK standards for water safety and temperature control. Ideal for installations requiring regulatory compliance in public or high-risk environments.

Key Features

Delivers water at the desired temperature instantly, reducing the need to run taps for extended periods. This helps lower water consumption and improves system efficiency.

Key Features

Typically made from brass with corrosion-resistant finishes for long-lasting performance. Designed to withstand regular use and changing temperature conditions.

22mm blending valves are essential for any hot water system where safety, comfort, and consistency are priorities. Without proper temperature control, hot water can reach dangerous levels and pose a scalding risk — especially in settings like family homes, schools, and care facilities. A blending valve ensures that water delivered to outlets stays within a pre-set safe range, regardless of fluctuations in supply temperature or pressure.

They also help improve energy efficiency by reducing the need to run taps for extended periods to reach a comfortable temperature. By delivering warm water instantly and safely, blending valves not only protect users but also help conserve water and energy in everyday use.

22mm blending valves are typically found in domestic hot water systems, particularly where hot and cold water need to be combined before reaching outlets like taps or showers. You’ll often find them installed near unvented cylinders, under bathroom basins, in wet rooms, or on supply lines to thermostatic showers.

In commercial or public buildings, they’re used in washrooms, schools, hotels, gyms, and care homes to ensure water is delivered at a safe temperature. They’re also common in underfloor heating systems and point-of-use blending setups. Thanks to their 22mm size, they’re a perfect fit for medium-flow installations that require safe and consistent temperature regulation.

It mixes hot and cold water to deliver a pre-set, safe temperature to your taps or showers.

Thermostatic mixing valves are a type of blending valve that automatically adjust the mix based on temperature changes.

Typically near the hot water source (e.g., unvented cylinder) or close to the outlet to control temperature at the point of use.

Yes — they are ideal for preventing scalding and are often installed in family homes, nurseries, or schools.

Yes, most blending valves feature an adjustable dial or screw to set the desired outlet temperature.

Some pressure balancing occurs, but high-quality blending valves maintain steady pressure alongside temperature control.

Occasional inspection and descaling (especially in hard water areas) will keep the valve performing at its best.

Yes, provided the valve is rated for the temperature and pressure of your system.

Yes — blending valves are often used to regulate the water temperature fed to underfloor heating loops.

22mm blending valves connect directly to standard 22mm copper or plastic pipework.

Most quality blending valves are WRAS-approved and meet TMV2 or TMV3 standards where required.

With proper maintenance, blending valves can last 5–10 years or more, depending on usage and water quality.

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