Removable insulation blankets are custom-fabricated, reusable covers — typically a high-temperature fabric jacket over fiberglass or needled insulation — that strap or wire onto valves, flanges, strainers, pumps, and equipment. Unlike permanent insulation, they come off in minutes for maintenance and go right back on, so components stay insulated instead of being left bare after the first service call. K. Guller Insulation measures, fabricates, and installs removable blankets throughout Pennsylvania, New Jersey, and Delaware.
A removable insulation blanket (also called an insulation jacket, soft cover, or valve cover) is a sewn, form-fitted insulation pad with a durable outer jacket — commonly silicone-coated fiberglass cloth — secured with straps, D-rings, hook-and-loop, or lacing wire. Use removable blankets anywhere insulation must be taken off repeatedly: valves, flanges, unions, strainers, steam traps, expansion joints, pump casings, heat exchanger heads, and instrumentation.
The rule of thumb: if a component will be opened for maintenance more than once, it should get a removable blanket, not hard insulation. Hard-insulated fittings get cut open at the first repair and are rarely re-insulated — leaving permanent energy loss and burn hazards.
An uninsulated 6-inch gate valve on a 350°F steam line loses roughly as much heat as 20+ feet of bare pipe. Across a mechanical room full of bare valves, that is real, recurring fuel cost. Insulating them also:
Every blanket is field-measured and custom-sewn to the component — no generic slip-on covers that gap and sag. Our process:
Facilities we serve include hospitals, universities, industrial plants, data centers, and commercial buildings across the Philadelphia tri-state area — see Industries and Projects.
Yes — both. We fabricate single replacement blankets for a failed cover, and we run full-facility insulation energy appraisals that identify every bare component, quantify the BTU and dollar losses, and prioritize the payback. The appraisal is performed by an NIA Certified Insulation Energy Appraiser using the NIA’s standardized methodology, so the savings numbers hold up in a capital request.
Find answers to common questions about our services, processes, and how we work with clients across various industries.
Permanent insulation is cut off and discarded whenever a component is serviced; removable blankets unstrap in minutes and are reinstalled after maintenance, preserving the energy savings and burn protection for the life of the system.
A properly fabricated blanket with a silicone-coated fiberglass jacket typically lasts 5–10 years in indoor service, and each blanket can be removed and reinstalled hundreds of times.
Yes. Cold-service blankets are built with a sealed vapor barrier to prevent condensation on chilled water and refrigeration valves and equipment.
Standard fiberglass-core blankets serve systems up to about 1,000°F; higher-temperature cores and jackets are available for process and exhaust applications.
A single bare 6-inch valve on a 350°F line can lose heat equivalent to 20 feet or more of uninsulated pipe — which is why codes require valves and fittings to be insulated, not just straight runs.
KG Insulation measures, fabricates, and installs custom removable blankets throughout eastern Pennsylvania, New Jersey, and Delaware from our Lafayette Hill, PA shop. Call (610) 941-9394.