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3/4" Ball Valves (DN20) are a popular and versatile choice for a wide range of industrial, commercial, and domestic applications. With a balance between compact size and efficient flow capacity, these valves are ideal for mid-sized systems that require quick shut-off, low pressure drop, and dependable performance. Whether you're handling water, air, gas, steam, or mild chemicals, our DN20 ball valves offer robust control with smooth quarter-turn operation and leak-tight sealing.

Key features and benefits of 3/4 inch Ball Valves (DN20).

Key Features

The 3/4" (DN20) size offers an excellent balance between space efficiency and flow capacity. It’s ideal for systems where moderate flow rates are required without taking up too much room.

Key Features

These valves provide fast and simple shut-off with just a 90-degree turn of the handle. This makes them perfect for manual or automated use in time-sensitive applications.

Key Features

Select models come with a full bore opening to ensure minimal pressure drop and unrestricted flow. This is especially beneficial in fluid systems that require high efficiency.

Key Features

Available in stainless steel, brass, PVC, and more, these valves are compatible with water, air, gas, oil, and light chemicals. This versatility makes them suitable for a wide variety of industries.

Key Features

Choose from threaded, flanged, or welded ends to match your existing pipework. This allows for easy integration into new or existing systems.

Key Features

Many 3/4" ball valves can be fitted with electric or pneumatic actuators for automated control. This improves system efficiency and enables remote operation in larger installations.

3/4" Ball Valves (DN20) play a crucial role in mid-sized fluid systems where precise, reliable shut-off is essential. Their size offers the perfect middle ground—large enough to handle substantial flow rates, yet compact enough to fit in tight piping arrangements. This makes them an ideal choice for a wide range of applications including HVAC systems, chemical dosing lines, water treatment plants, and compressed air systems.

Their ability to provide instant isolation with just a quarter-turn ensures fast response times during maintenance or emergencies, improving safety and system uptime. Built from corrosion-resistant materials and designed for high performance under varying pressures and temperatures, DN20 ball valves support long-term durability, minimal leakage, and low maintenance. In systems where efficiency, reliability, and control matter, these valves are a dependable solution that helps maintain performance and prevent costly downtime.

You’ll commonly find 3/4" Ball Valves (DN20) installed in medium-sized pipelines across a wide range of industries and systems. In HVAC applications, they control water flow in heating and cooling loops with quick shut-off capability. In agriculture and irrigation, DN20 ball valves manage the distribution of water and nutrients through mid-sized pipework with ease.

They’re also widely used in compressed air systems, chemical dosing units, process automation lines, and general plumbing installations—particularly where space is limited but flow efficiency is still important. In industrial settings, these valves are often integrated into skid-mounted systems, filter units, and pump isolation points. Their size and versatility make them a go-to solution for engineers and technicians looking for reliable, compact, and efficient flow control.

We stock a wide range of stainless steel options built for durability and performance in demanding environments.

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A ball valve is used to start or stop the flow of liquids or gases by rotating a ball with a bore inside the valve body. It provides quick, reliable shut-off with minimal pressure drop.

Ball valves use a hollow, pivoting ball that aligns with the flow path when open and rotates 90° to block flow when closed. The handle position clearly indicates whether the valve is open or shut.

Ball valves are not ideal for throttling or precise flow regulation, as partial opening can cause seat wear and turbulence. They're best used in fully open or closed positions.

Ball valves can be made from stainless steel, brass, bronze, PVC, CPVC, carbon steel, and other alloys. Material choice depends on the application, pressure, and media compatibility.

Yes, many industrial-grade ball valves are designed to handle high pressures, especially those made from metal with reinforced seals and full-bore designs.

Common types include two-piece, three-piece, flanged, wafer, full bore, reduced bore, and multi-port ball valves. Each type suits different installation and maintenance needs.

Ball valves have a long service life, especially in clean systems. With minimal moving parts and a durable seal, they often outlast other valve types when used correctly.

Most ball valves are bidirectional and allow flow in both directions. However, some designs may be unidirectional depending on the seat and body configuration.

Yes, ball valves can be fitted with pneumatic or electric actuators for remote or automatic control. This is common in industrial and process automation.

Ball valves are generally low maintenance. Three-piece designs are preferred where service or cleaning may be needed, as they allow in-line maintenance.

Ball valves are used across many sectors, including oil & gas, chemical processing, water treatment, food & beverage, pharmaceuticals, and HVAC systems.

Ball valves come in sizes ranging from 1/4" (DN08) for small systems to 12" or larger (DN300+) for industrial pipelines. Size selection depends on flow rate and pipe compatibility.

Please feel free to request information and advice using the form below or call us on 0151 547 1221