UniTherm ISO-VALVE removable insulation covers slash heat loss, lower your energy bills, and protect your team from burns — and they install in seconds with no tools.
Gate valves need quick access for maintenance and troubleshooting, so they're often left uninsulated. But a bare valve radiates enormous amounts of heat — especially in high-temperature systems — driving up energy costs every single day and creating a serious burn hazard for anyone nearby.
Thermography: bright areas are wasted heat escaping from bare components.
A removable insulation jacket — also called a valve cover or blanket — is a custom-shaped, reusable cover that wraps snugly around a gate valve. Unlike permanent insulation, it ties on in seconds and lifts off just as fast, so your team keeps full access to the valve for maintenance while it stays insulated the rest of the time.
Each jacket is designed to form to the exact configuration of your valve — even complex shapes with protrusions and supports.
Unlike most removable valve insulation, ISO-VALVE comes in readily available standard sizes that fit a wide range of applications.
Draw cords and a quick fastening system mean any worker can remove and reinstall a jacket in seconds — no tools or help required.
A removable jacket usually pays for itself in less than 12 months — then keeps saving year after year.
Insulating a single 6" gate valve can add about $525 back to your bottom line every year by stopping heat loss.
Meets and exceeds OSHA's "touch-safe" rating. A valve running at 350°F drops to about 93°F at the surface.
Take it off for maintenance, put it right back on. The jacket stays on the equipment where it keeps saving money.
Stable operating temperatures reduce strain on your system and help equipment last longer.
Customers report an immediate, noticeable drop in ambient temperature in hot mechanical and boiler rooms.
Less wasted heat means less fuel burned — reducing unnecessary emissions along with your costs.
The ISO-VALVE wraps around the fitting and secures with lacing hooks and stainless steel wire (or quick draw cords) for a tight, shape-conforming fit.
Rated to 1022°F (550°C) — takes the direct heat.
Dual-layer insulating core rated to 1000°F (538°C).
Durable weatherproof cover rated to 536°F (280°C).
Need heat in winter too? Jackets can be built with self-regulating heating cables for safe, reliable freeze protection when temperatures drop below zero.
| Specification | Detail |
|---|---|
| Product line | UniTherm ISOCOVERS ISO-VALVE removable insulation jacket |
| Continuous temperature range | −120°F (−84°C) to 800°F (427°C) |
| Construction | Three-layer: Fiber 2025 inner, IceRock + Needle Mat core, Grey Silicone outer |
| Closure | Lacing hooks & stainless steel wire, or quick draw cords with hook-and-loop flaps |
| Sizing | Standard off-the-shelf sizes plus fully custom solutions |
| Safety | Meets & exceeds OSHA "touch-safe" surface temperature requirements |
| Options | Optional self-regulating heat-trace cable for freeze protection |
| Made in | USA — Lewisville, Texas |
Don't see the right size, or have a complex application? Our team of insulation experts will help you spec the right solution and get you a fast quote. Most standard sizes ship quickly.
