22mm Pump Valves

22mm pump valves are specifically designed to make the installation, servicing, and replacement of circulation pumps fast, safe, and hassle-free. These valves isolate the pump from the rest of the system, allowing engineers to carry out maintenance without draining the entire circuit. With integrated isolation features, they reduce system downtime and simplify pump-related work in both domestic and light commercial heating setups.Built to fit directly onto pump connections with 22mm pipework, these valves are often supplied as a pair (inlet and outlet) and include compression ends for easy installation. Many models also feature built-in washers or check valves to prevent backflow and ensure one-way circulation. Whether you’re fitting a new heating pump or upgrading an old system, 22mm pump valves are essential for efficient and mess-free servicing.

Key Features

Key features and benefits of 22mm Pump Valves.
1

Key Features

Pump valves allow you to isolate the circulation pump quickly without draining the system. This enables easy repair or replacement with minimal disruption.
2

Key Features

Engineered to connect directly to most standard heating pumps with 22mm pipework. Their compact body ensures a neat fit in tight plant rooms or airing cupboards.
3

Key Features

Fitted with high-quality washers and compression ends to ensure a secure, leak-free connection. Ideal for maintaining system pressure and reliability.
4

Key Features

Pump valves eliminate the need to drain your heating system during pump replacement. This reduces downtime and speeds up the repair process.
5

Key Features

Their secure connection helps reduce vibration transfer from the pump to pipework. This minimises wear and keeps your system running quietly.
6

Key Features

Suitable for both new installations and retrofitting to existing systems. A simple upgrade that greatly improves future service access.

Why 22mm Pump Valves Are Important

22mm pump valves are critical for maintaining heating systems efficiently and safely. Without them, replacing or servicing a faulty circulation pump would require draining the entire system — wasting time, water, and potentially introducing air into the circuit. By isolating the pump with dedicated valves, engineers can carry out work quickly, cleanly, and without affecting the wider system.

These valves are especially valuable in homes with sealed or pressurised heating systems, where draining can be more complex. They also reduce the risk of leaks during maintenance and help extend the life of the pump by providing secure, vibration-resistant fittings.

Where You’ll Find 22mm Pump Valves

22mm pump valves are typically found on either side of a domestic central heating circulation pump — often located near the boiler or in an airing cupboard. They’re used in both open-vented and sealed systems to allow for easy isolation and pump removal when needed.

You’ll also see them in light commercial heating setups, especially where access and maintenance are frequent requirements. Their compatibility with standard 22mm copper pipework makes them a go-to choice for installers fitting new heating systems, carrying out pump upgrades, or retrofitting to improve serviceability.

Valve Standards & Stuff
Size 22mm
Valve Function Isolation (inlet/outlet for pump)
Material Brass or nickel-plated brass
Application Domestic and light commercial heating
Compatible Pipework 22mm copper or plastic (with inserts)
Seal Type Washer-sealed compression ends
Installation Orientation Horizontal or vertical

Frequent Interrogation

They’re used to isolate a circulation pump for installation, maintenance, or replacement without draining the entire system.

Yes, it's best practice to install one on both the flow and return to fully isolate the pump.

If you're experienced with plumbing, yes — otherwise it's recommended to use a professional installer.

Most standard 22mm pump valves fit directly onto common domestic circulation pumps, but always check thread size and alignment.

Often, yes. Many suppliers offer pump valves as a matched set for inlet and outlet connections.

Yes, and they’re especially useful in sealed systems where draining is more complicated.

Some models include a check valve or flap to help prevent reverse flow through the pump.

Yes — as long as the valves are still in good condition, they can be reused with a new pump.

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22mm Pump Valves