OUR PRODUCTS

Valve Insulation Jackets For Every Valve Type

Valves are one of the most commonly overlooked insulation gaps on any industrial or commercial site. A single uninsulated valve can lose as much heat as several metres of bare pipe, every day. Multiply that across a plant room or a full site installation, and the losses are significant, ongoing and entirely preventable.

Lagflex manufactures removable valve insulation jackets for all common valve types used in UK industrial, HVAC and commercial applications. Standard and bespoke sizing, built-in-house facility, and delivered nationwide. Get in touch to request a quote or read on to find the right jacket for your valve type.

Why fit valve insulation jackets?

The energy-saving case is straightforward. Fitting removable insulation jackets to uninsulated valves typically delivers payback in under 12 months through reduced heat loss alone. That is, without accounting for the safety benefits, the maintenance savings or the compliance value. In practice, valve insulation jackets deliver on several fronts:

Energy savings

Significant heat loss reduction year-round, cutting energy bills and carbon output

Personnel safety

Surface temperatures brought down to safe levels, reducing the risk of burns

Maintenance-friendly

Removed and refitted in seconds, no tools required, no damage to the insulation

Long service life

Reusable over many years, with no degradation from repeated removal and reinstallation

Compliance

Helps facilities meet energy efficiency and sustainability requirements

Valve insulation jackets we cover

We manufacture insulation jackets for all of the following valve types. If your valve is not on this list, it is still worth contacting us. If it has a body, we can almost certainly insulate it.

Gate valve jackets

Gate valves have a large, exposed body and are among the highest heat loss points on any pipework system

Common applications: Isolation valves on heating, cooling and steam mains

Ball valve jackets

Easy-fit design allows quick removal for valve operation and routine maintenance

Common applications: Isolation and control across all pipework systems

Butterfly valve jackets

Covers both valve body and actuator where required

Common applications: Low-pressure isolation on HVAC and chilled water systems

Globe valve jackets

Precision-fit insulation around complex valve body profiles

Common applications: Control valves on heating, steam and process systems

Check valve jackets

Covers both valve body and actuator where required

Common applications: Low-pressure isolation on HVAC and chilled water systems

3-way valve jackets

Custom-fit to accommodate the complex geometry of 3-way valve bodies

Common applications: Diverting and mixing valves on HVAC and process systems

Strainer jackets

Maintains system efficiency and prevents heat loss at strainer bodies

Common applications: Y-strainers and basket strainers across all pipework systems

Flange jackets

Flanges are the most common insulation gap on site and one of the simplest to address

Common applications: Flanged joints throughout industrial and HVAC pipework

Need a jacket for a valve not listed here?

Call us on 07497 119 610, and we will confirm whether we can help.

Key features

Removable and reusable:

Designed for fast on-site removal without tools or specialist knowledge

Durable outer casing:

Silicone-coated glass fibre cloth, resistant to UV, chemicals and heat

High-performance insulation fill:

Mineral wool with aluminium foil facing as standard

Secure fastening:

Velcro, draw cords and clip systems for a tight, gap-free fit.

Standard or bespoke insulation jackets, which do you need?

We offer valve insulation jackets via two routes. Standard valve jackets are designed to fit the most common valve sizes and types used in UK installations, with fast turnaround on enquiries. Bespoke valve jackets are made to your exact measurements for non-standard valve sizes, unusual configurations or valves with integrated actuators, positioners or instrumentation.

If you are unsure which applies to your situation, give us the valve manufacturer, model and nominal bore size, and we will tell you straight away. See also our bespoke insulation covers for more details on how the custom manufacturing process works. For steam and high-temperature valve applications, see our high temperature insulation jackets range.

How it works

Our Ordering Process

Six straightforward steps from your first enquiry to a jacket fitted on site — built to order at our UK facility and delivered nationwide.

01. Communication

Contact us with your requirements and project details.

02. Email

Send us the valve or fitting type, nominal bore size, quantity and any relevant information.

03. Sketch / Drawing

Where possible, include a sketch or drawing. We’ll review and confirm the details.

04. Manufacture

We manufacture your insulation jackets to the highest standards.

05. Delivery

Your order is carefully packed and delivered to site on time.

06. Installation / Fit

Our team can install on site for a perfect fit and professional finish.

How to order

Contact us with the valve type, nominal bore size, manufacturer name and model number if known, plus the quantity required. For non-standard valves, include dimensions or photos, and we will design to fit. We supply valve insulation jackets across the UK from our manufacturing facility, with nationwide UK delivery on all orders.

Get in touch

Request a quote via our contact page or call us directly on 07497 119 610. We will get back to you promptly.

FAQ’s

Frequently Asked Questions

Our standard range covers the most common nominal bore sizes used in UK installations. For non-standard or large-diameter valves, we manufacture bespoke jackets to your exact dimensions. Contact us with your valve details, and we will confirm what is available.

Yes. All our valve insulation jackets are designed to be removed and refitted repeatedly without degrading. A correctly refitted jacket performs just as well as when first installed.

An uninsulated valve can lose as much heat as several metres of bare pipe. Across a plant room with multiple uninsulated valves, the savings from fitting valve insulation jackets can be substantial, with payback periods of under twelve months common in heating and steam applications.

Yes. We manufacture valve insulation jackets for motorised and pneumatically actuated valves. The jacket design accommodates the actuator whilst ensuring the valve can be operated without removing the insulation. Bespoke insulation jacket  is usually required for actuated valves.

Yes. We supply valve insulation jackets for all valve types used in steam systems. For high-temperature steam applications, specialist materials rated for sustained high-heat exposure are used.