Comprehensive Guide to BS5163 Gate Valves

Aug 2, 2023 | News

BS5163 is a British Standard that specifies the technical requirements for the design, manufacturing, and testing of gate valves. Gate valves conforming to this standard are commonly used in various industries for applications operating at pressures up to PN16 (230 PSI). The performance, reliability, and safety of BS5163 gate valves make them a popular valve choice.

wholesale bs5163 resilient seated gate valve

This Comprehensive Guide Will Cover:

What is a BS5163 gate valve pn16?
Types of BS5163 gate valves
BS5163 gate valve sizes
Key features of BS5163 valves
Main applications
Installation and maintenance tips

What Is A BS5163 Gate Valve?

A BS5163 gate valve is a type of linear gate valve that has been manufactured and tested according to the requirements of British Standard BS5163. Common BS5163 grades include:

• PN10 – Suitable for operations up to 145 PSI
• PN16 – Suitable for operations up to 230 PSI

Depending on the seat design, BS5163 gate valves can be:

• Metal seated for high performance
• Resilient seated for reduced risk of leaks

BS5163 gate valves are capable of withstanding high pressures while providing reliable shut-off for a wide range of industrial fluids like water, air, oil, gas, and chemicals. The standard specifies certain performance aspects like pressure ratings, flow coefficients, compression ratios, and more.

Types of BS5163 Gate Valves

Two main types of BS5163 gate valves are available depending on seat design:

• Metal seated – These valves use a metal-to-metal design where the gate meets the body to form a seal. They provide a bubble-tight shut-off but cannot tolerate solid particulates in the line fluid.
BS5163 resilient seated gate valve – An elastomeric O-ring is used to seal between the gate and valve body. These valves are better able to handle wet steam, water hammer effects and some solid particulates in the fluid stream.

BS5163 Gate Valve Sizes

BS5163 gate valves are manufactured in a variety of sizes to meet the requirements of different applications. Common valve sizes for BS5163 gate valves range from:

• 1⁄2 inch to 4 inches for small-scale industrial and commercial applications
• 6 inches to 24 inches for large-scale industrial applications in power plants, refineries, oil and gas, chemical plants, etc. So we call big size gate valve.

Larger sizes up to 48 inch valves are also available, though they tend to be more customized for specific projects. Standard pipe thread (NPT) and flange options are typically available across all sizes.

Key Features of BS5163 Gate Valves

• Rising stem – The valve stem rises with the gate during closing for external indication of valve status
• Wedge-shaped gate – Offers a large sealing area across the flow path for a more effective seal
• Compact & lightweight design
• Ability to operate in horizontal, vertical and inclined positions
• Bonnet that can be bolted or threaded onto the valve body for easy on-site maintenance
• Wide selection of end connections like flanges, weld ends and grooved ends
• Low operating torque for easy open-close operation

Applications of BS5163 Gate Valves

Some of the main applications of BS5163 gate valves include:

• Water & wastewater treatment plants
• Power plants – For boiler blowdown and feedwater systems
• Oil refineries – Used in crude oil, refined products and process fluid lines
• Petrochemical facilities – For isolating and regulating flow in various plants
• Pulp & paper mills- For isolating equipment and control of process flow
• Marine applications – Ideal for seawater service on ships and rigs
• General industrial applications – As shut-off valves in manufacturing plants

Installation and Maintenance Tips

• Ensure the selected valve rating meets or exceeds system pressure and temperature
• Support the valve properly to minimize stress on the body during operation
• Lubricate stem threads, bearings and other moving components periodically
• Exercise the valve regularly if left idle for extended periods
• Replace seals, gaskets and O-rings according to maintenance schedule
• Inspect internal components for wear and replace as needed over the long term
• Isolate and drain lines to allow for safe on-site repair of defective valves

Hopefully this guide has provided useful information on BS5163 gate valves, including key features, applications and best practices. BS5163 compliance ensures safety and reliability which is critical for valves used in safety-critical systems. Let me know if you have any other questions!