22mm Gate Valve

22mm gate valves are a traditional yet highly effective solution for isolating flow in plumbing and heating systems. Designed with a rising or non-rising stem that controls a gate or wedge inside the valve body, these valves provide smooth, gradual shut-off and are best suited to applications where the valve remains fully open or fully closed during operation.Commonly used in domestic water supply lines and heating systems, 22mm gate valves offer reliable long-term performance with minimal pressure drop when fully open. Their robust construction and compatibility with 22mm pipework make them a popular choice for both new installations and maintenance tasks where dependable flow isolation is required. While not ideal for flow regulation, their simplicity and durability make them a staple in traditional system design.

Key Features

Key features and benefits of these valves.
1

Key Features

Gate valves provide effective shut-off for water systems, making them ideal for isolating supply lines and central heating circuits. Once closed, they create a secure seal that prevents leakage or unwanted flow.
2

Key Features

When fully open, the internal gate lifts clear of the flow path, allowing water to pass through with minimal restriction. This makes them well-suited to gravity-fed systems or installations where maintaining pressure is important.
3

Key Features

With fewer moving parts compared to other valve types, gate valves are less prone to mechanical wear. Their sturdy brass or bronze construction ensures a long service life.
4

Key Features

Gate valves have been used for decades due to their simplicity and effectiveness. Their proven design still holds value in modern systems needing manual isolation.
5

Key Features

The unobstructed internal passage when open makes gate valves excellent for maintaining high flow rates. This is especially useful in gravity-fed systems or large volume applications.
6

Key Features

Because they require multiple turns to operate, gate valves are less likely to be accidentally turned on or off. This makes them a safer choice in shared or public spaces.

Why 22mm Gate Valves Are Important

22mm gate valves are essential for isolating sections of pipework in heating and plumbing systems, particularly where consistent full-flow is needed. Their design allows water to pass through without turbulence or restriction, preserving flow rates and reducing system strain. This makes them especially valuable in systems that run continuously or require occasional shut-off without frequent operation.

Gate valves also provide peace of mind during maintenance or emergency situations. Their robust build and mechanical simplicity ensure they can be relied upon to open and close securely, even after long periods of inactivity. Whether you're isolating a cold water main, shutting off a radiator circuit, or servicing a tank feed, a 22mm gate valve is a tried-and-tested tool for the job.

Where You’ll Find 22mm Gate Valves

22mm gate valves are frequently used in domestic and light commercial plumbing systems. You’ll often find them installed on rising mains, storage tank feeds, central heating pipes, and open vented systems. They’re also used in plant rooms and service risers to control water distribution to different zones or floors.

In older properties, gate valves are commonly fitted as isolation points in lofts, airing cupboards, or under sinks — offering a manual means of controlling flow to various parts of the system. Thanks to their compatibility with standard 22mm copper or plastic pipework, they remain a trusted choice for replacements or retrofits where space allows for their full-body design.

Frequently Asked Questions

It’s used to isolate flow in water and heating systems, allowing you to stop water supply to specific areas.

While possible, gate valves are not designed for throttling and can wear out quickly if used for flow control.

Yes, they can be used on both hot and cold water lines within rated temperature limits.

If left unused for long periods, they can seize. Periodic operation helps maintain functionality.

Yes, gate valves can be fitted in either orientation, but the handle should be accessible.

When fully open, gate valves create very low pressure drop, making them ideal for full-bore flow.

Not always — unlike lever valves, they don’t give a visual cue, but the number of turns gives an indication.

Yes, most 22mm gate valves are rated for typical mains water pressures found in domestic systems.

They are usually made from brass or bronze, with some models featuring stainless steel internals.

Yes, but they should be protected from freezing and UV damage if used externally.

Minimal maintenance is needed, but regular checks and turning the handle occasionally helps keep them working.

Gate valves offer slower, more gradual shut-off, while lever valves provide faster, more visual on/off control.

FAQ

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22mm Gate Valve