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Butterfly Valves UK: A Complete Guide

Butterfly Valves UK

Butterfly Valves UK: A Complete Guide to Types, Uses, and Selection Tips 

At Heap & Partners, we supply one of the UK’s most comprehensive ranges of butterfly valves, engineered for performance, reliability, and compliance across industrial sectors. Whether your priority is cost-effective isolation or high-temperature, high-pressure performance, understanding the differences between butterfly valve types helps you make the right choice. 

 

  1. Butterfly Valve Types in the UK

Resilient-Seated (Soft-Seated) Butterfly Valves
Our Phase Resilient Seated Butterfly Valves provide excellent shutoff for general industrial use. They’re ideal for water, air, and light chemical applications where temperature and pressure are moderate. Their concentric design ensures tight sealing, reduced maintenance, and lower cost.

 Phase Resilient Seated Butterfly Valves
Phase Resilient Seated Butterfly Valves

 

 Double Offset Butterfly Valves
Our Phase Double Offset Butterfly Valves feature an offset stem and disc geometry, reducing friction on the seat for a longer lifespan and improved sealing at higher pressures. Common in process, steam, and power industries, they handle elevated temperatures better than resilient types. 

 Phase Double Offset Butterfly Valves
Phase Double Offset Butterfly Valves

 Triple Offset Butterfly Valves
For the most demanding duties, our  Phase Triple Offset Butterfly Valves offer metal-to-metal sealing and zero leakage performance. Built for extreme pressure and temperature conditions, these valves excel in energy, chemical, and marine sectors. 

Phase Triple Offset Butterfly Valves 
Phase Triple Offset Butterfly Valves

 High Performance Butterfly Valves 

We also supply Keystone K-Lok High Performance Butterfly Valves and Flowseal High Performance Double Offset Butterfly Valves. Both are designed for stringent service conditions, combining high-grade materials and advanced seat technology for reliable sealing under extreme pressure and temperature ranges. They’re widely used in offshore, oil and gas, and process industries where safety and dependability are paramount. 

 

 General Service Butterfly Valves 

For lower-pressure and utility applications, our Centerline RS General Service Butterfly Valves and Keystone GRW General Service Butterfly Valves provide robust, efficient, and cost-effective flow control. These valves are commonly used in HVAC, water distribution, and general industrial systems where versatility and ease of maintenance are key. 

  

  1. How to Choose the Right Butterfly Valve

 When selecting a butterfly valve, consider: 

Pressure and Temperature: 

  • High-performance and triple-offset designs are better for high pressure and temperature. Resilient-seated valves are ideal for lower ranges.

Media Compatibility: 

  • Elastomer-lined valves suit non-corrosive fluids; metal-seated options handle steam, oil, or corrosive gases. 

Sealing Requirements: 

  • Soft-seated valves offer bubble-tight shutoff for clean media. Metal-seated variants excel in abrasive or hot conditions. 

Cost vs. Longevity: 

  • Resilient-seated valves are cost-efficient initially, while triple-offset designs offer superior lifecycle value. 

 

  1. UK-Specific Considerations for Butterfly Valves 

Operating in the UK means adhering to strict industry standards like BS EN 593 and PED compliance. We ensure every valve meets or exceeds these benchmarks. 
From our five UK office we offer expert support across the UK’s diverse industries, from water utilities to power generation. 

 

  1. Case Examples from our Catalogue

 Phase Resilient-Seated Butterfly Valves: Ideal for municipal water systems needing tight shutoff at low cost. 

Phase Double Offset Valves: Commonly specified in process plants where frequent cycling demands minimal wear. 

Phase Triple Offset Valves: Used in power and chemical sectors for high-temperature isolation with zero leakage. 

Keystone K-Lok Valves: Deliver high-performance sealing in marine and petrochemical installations. 

Flowseal Valves: Chosen for oil refineries requiring reliable double offset operation under severe conditions. 

Centerline RS & Keystone GRW Valves: Excellent for HVAC and general-purpose flow control across UK facilities. 

 

Why Choose Heap & Partners 

Since 1866, we have been a trusted UK supplier of industrial valves, actuators, and flow control solutions. We offer expert technical guidance, stock availability, and full aftersales support. Whether you need a resilient-seated valve for water treatment or a triple-offset valve for steam service, our engineers will help you find the right specification.  

Looking for the right butterfly valves in the UK?
Explore our full range or speak with our technical team for tailored recommendations. Contact us for further information.