Removable Insulation Blankets for Boilers, Generators and Plant Equipment

Every plant has the same problem somewhere: a hot part that has to stay insulated and also has to be opened up. A boiler feed valve, a steam strainer, a heat-exchanger head, a genset exhaust flange, a turbine casing connection. Hard insulation does the first job well and the second job badly. Each time maintenance needs access, someone cuts it out, and someone has to replace it.

Removable insulation blankets for boilers, generators and plant equipment solve that by making the insulation part of the maintenance plan instead of an obstacle to it. This guide is for maintenance and plant managers, reliability engineers, purchasing, and the insulation contractors who do the work at boiler plants, power facilities, mines, mills and refineries.

The three reasons plants use removable blankets

For the basics of why removable blankets beat hard insulation on pipe and equipment, see why removable blankets are the smart choice. This post focuses on boilers, generators and turnaround work.

1. Burn protection

Bare hot surfaces are a burn hazard, especially where people walk, climb or work close by: valve stations, ladders past steam lines, generator enclosures, pump bays. A fitted blanket covers those surfaces. It's a straightforward way to deal with the hot spots your safety walk keeps flagging.

2. Less heat loss

An uninsulated valve or flange loses heat into the room, the same as any bare section of pipe. Fittings are often left bare because they're awkward to insulate and need regular access. Removable valve insulation blankets and flange covers let you insulate those fittings without giving up access. We don't quote savings figures, because the result depends on your system. The physics is simple, though: covered hot surfaces lose less heat than bare ones.

3. Maintenance access

This is where removable blankets really pay off. A blanket made for a specific valve or flange comes off for inspection, packing, gasket work or a full overhaul, and the same blanket goes back on. There's no cutting, no re-lagging and no insulation waste every time someone opens the system.

Removable insulation jackets on a valve row, each built for its own valve.

Where they fit

Boilers and steam systems. Valves, strainers, steam traps, flanges, elbows, heat-exchanger heads and other fittings on steam and condensate lines. That covers central steam plants, industrial boiler rooms, food and seafood processing, and district heating.

Generators and engines. Exhaust elbows, risers, mufflers and turbo connections on standby, prime-power and remote diesel gensets, plus fire-pump and emergency engines. Generator exhaust insulation that comes off makes scheduled service much easier. In remote power, where gensets carry the whole load, it means the cover is still there after the overhaul.

Mines and mills. Gensets, heated process piping, pumps and valve stations at remote sites, where every part has to be shipped in and nothing should be thrown away after one use.

Refineries and chemical plants. During a turnaround, crews open many valves and flanges. Removable insulation jackets built for those fittings come off for the turnaround and go back on when it's done, turnaround after turnaround. That's useful for plants around Cherry Point and Anacortes, and anywhere else turnarounds are part of the calendar.

Pumps and odd shapes. Pump casings (volutes), expansion joints, manways and other shapes that standard pipe insulation doesn't handle well.

Covers made to measure around pump casings.

For insulation contractors: we manufacture, you install

All Temp Soft Covers is a custom manufacturer, and we don't install. For mechanical and industrial insulation contractors, that makes us a fabrication source rather than a competitor. Send us the takeoff, photos, measurements or drawings, and we build the industrial insulation covers to your specs for your crew to install. As a removable insulation cover manufacturer and custom insulation blanket supplier in the USA, we can be a wholesale source for insulation contractors, with competitive pricing on single jackets or production quantities.

How to spec removable jackets for a turnaround

Working from a turnaround valve and flange list? For each tag on it, send us:

• Photos from a few angles, with clearances, supports, drains, sensors and handwheels in view.

• Dimensions: pipe OD, valve face-to-face, flange OD and thickness, bend radius, and lengths.

• Part numbers or valve size and class, if you have them.

• Operating temperature and environment: indoor or outdoor, washdown, oil, vibration.

• Tag or line number and quantity, plus whether stems, handwheels or instruments must stay outside the cover.

Send the list ahead of the shutdown window so covers can be quoted before the work starts. If measuring is the hard part, the owner will walk your team through it by phone or video call. Quotes are free, and they're Built to Your Specs: made from measurements, drawings or photos.

Ratings

Our covers are a layered build, and each layer has its own rating. The inner insulation is rated 1,000°F continuous / 1,200°F max, and the gray outer cloth is rated 450°F continuous / 500°F max. Tell us the operating temperature and conditions for each part, and we'll confirm the right build before we make anything. That's what makes these high temperature insulation blankets fit for the application, not just for the shape.

Shipping

Covers are made in Blaine, Washington, and ship nationwide, including Alaska. That covers boiler rooms in Seattle and Tacoma, steam plants in Fairbanks, remote mine sites, and refineries and plants anywhere in the country.

Learn more about our valve insulation blankets for turnarounds, insulation jackets for steam and condensate pipe and genset exhaust blankets.

Free quote: call 360-383-6857, email info@alltempsoftcovers.com, or request a quote with your takeoff.

FAQ

What's the difference between a removable insulation blanket and a jacket? The terms mean the same thing. Both describe a sewn, made-to-measure cover that fastens around a part and can be removed and refitted. "Jacket" is more common for valves and flanges.

Do removable blankets help with burn protection? Yes. They cover hot surfaces that people might touch. Tell us where people work around the equipment, and we'll build accordingly.

Can you build covers for a refinery turnaround? Yes. Send the valve and flange list with sizes, photos and temperatures. We build to your specs for your crew or insulation contractor to install.

Do you work with insulation contractors? Yes. We manufacture only, so contractors can use us as a fabrication source for removable covers, with one-off or production orders.

What are the temperature ratings? Inner insulation 1,000°F continuous / 1,200°F max; gray outer cloth 450°F continuous / 500°F max.

Do you ship to Alaska and outside Washington? Yes. We ship nationwide, including anywhere in Alaska.

All Temp Soft Covers · Custom removable insulation covers · Made in Blaine, WA · Shipping nationwide, including anywhere in Alaska · 360-383-6857