5" Ball Valves (DN125)

Available in a range of materials including stainless steel, carbon steel, and specialist alloys, these valves are suited to both standard and corrosive environments. Whether you require flanged, threaded, or welded ends, we offer various configurations to meet your system requirements. Many models are also compatible with electric or pneumatic actuators, making them ideal for automated process systems where remote control and reliability are essential.

Why Are 5" Ball Valves (DN125) Important?

Subtotal	£0.00

5 inch Ball Valves (DN125) are important because they play a crucial role in managing high-volume flow in medium to large-scale industrial systems. Their ability to provide full-bore flow with minimal restriction ensures efficient fluid transfer, which is essential for maintaining system performance and energy efficiency. These valves deliver dependable shut-off, reducing the risk of leaks and ensuring safety in critical applications involving water, gas, steam, or chemicals.

Their robust construction allows them to withstand harsh conditions, including high pressure, temperature, and corrosive environments—making them suitable for industries such as chemical processing, water treatment, power generation, and manufacturing. The DN125 size bridges the gap between standard and heavy-duty pipeline setups, offering a balance of flow capacity and installation flexibility. In systems where uptime, safety, and precise control matter, these valves are an essential component that helps maintain continuous and reliable operation.

Where Would You Find 5" Ball Valves (DN125)?

You would typically find 5" Ball Valves (DN125) installed in medium-to-large industrial pipeline systems where high flow rates and dependable isolation are required. Common applications include water treatment plants, where they control the flow of treated or raw water, and chemical processing facilities, where they manage the movement of corrosive or hazardous media with precision and safety. They are also widely used in district heating networks, HVAC systems, and utility infrastructure, where efficient fluid control is essential for system performance.

In the oil and gas industry, DN125 ball valves are used for bulk transfer lines, tank connections, and process control systems where durability and leak-tight sealing are critical. You’ll also find them in power plants, manufacturing plants, and pumping stations, especially in areas requiring automation-ready valves for remote actuation. Their versatility, robust design, and compatibility with various connection types make them a key component in large-scale flow management systems.

Frequently Asked Questions

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.