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Thermal insulation

Industrial Thermal Insulation Solutions

Hot, cold & cryogenic insulation | Fixed, removable & reusable systems. Insulation engineered to reduce heat loss or heat gain, hold process temperature, protect personnel where applicable, and control condensation, frosting and icing — for piping, valves, flanges, pumps, strainers, heat exchangers, reactors, vessels, tanks, boilers, furnaces, turbines, exhaust systems, ducts, manways, expansion joints, instrumentation and process equipment.

Scope Hot · Cold · CryogenicSystems Fixed & RemovableService Design to site installation
Isotherm removable and reusable insulation jacket fitted to process equipment
ISO 9001:2015 certified company
CE / RoHS where applicable
Made in India
Since 1989
Custom Manufacturing
Dimension 1 · By construction

How the insulation is built.

Every insulation system is specified on two independent dimensions. The first is construction — whether the insulation is permanent, or made to be removed and refitted. This is decided by how often the equipment needs access.

Fixed / permanent insulation

Intended for permanent or long-term thermal protection. Insulation material, thickness, vapour barrier and external cladding are selected according to the operating temperature, service conditions and installation environment.
  • Hot-process piping and steam lines
  • Chilled-water piping and refrigeration systems
  • Cryogenic piping
  • Tanks, vessels and reactors
  • Boilers, furnaces and ducts
  • Heat exchangers
  • HVAC and utility systems
CladdingAluminium, GI or stainless steel, where technically appropriate
Selected forTemperature & environment
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Removable & reusable insulation

Custom-designed removable and reusable insulation systems for equipment requiring periodic inspection, servicing or maintenance. Unlike conventional fixed insulation, these jackets and covers can be removed and subsequently reinstalled, helping reduce maintenance time, insulation replacement and recurring insulation cost.
  • Valves, flanges and unions
  • Pumps and strainers
  • Heat exchangers and turbines
  • Exhaust systems and manways
  • Expansion joints and instrumentation
  • General process equipment
BuildHigh-temperature fabrics
Made toYour equipment dimensions
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Removable & reusable

Removable & reusable insulation jackets.

Each jacket is made to the shape of the part it covers, so it can be taken off for inspection or servicing and refitted afterwards. Depending on the application, jackets incorporate suitable high-temperature fabrics, insulation layers, fastening systems and protective outer covers.

Removable insulation jacket for a straight pipe section
Pipe and straight-run sections
Removable insulation jacket for a valve body, flange and union
Valves, flanges and unions
Removable insulation cover made to a custom equipment shape
Equipment covers and custom shapes
ValvesFlangesPumpsStrainersHeat ExchangersTurbinesExhaustsManwaysExpansion JointsInstrumentation

Photographs show representative insulation jackets. Every jacket is manufactured to the dimensions and operating conditions of your equipment.

Dimension 2 · By service

What the insulation is working against.

The second dimension is service — whether the system is holding heat in, keeping heat out, or operating at very low temperature. Service decides the material, thickness and vapour-barrier requirement. It is specified together with construction, not instead of it.

Hot insulation

Designed to reduce heat loss, maintain process temperature, improve energy efficiency and provide personnel protection where applicable.
ApplicationsSteam lines, hot-process piping, boilers, furnaces
Also forThermic-fluid systems, reactors, vessels, exhaust systems
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Cold insulation

Designed to reduce heat gain, maintain process temperature, control condensation and reduce moisture ingress in low-temperature systems.
ApplicationsChilled-water systems, refrigeration piping, cold storage
Also forHVAC, process piping, tanks, vessels, food & beverage and pharmaceutical systems
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Cryogenic insulation

For very-low-temperature systems, where minimising heat ingress and controlling condensation, frosting and icing are important. Cryogenic insulation is specialised — scope and feasibility are confirmed against the specific service during engineering review.
ApplicationsLN₂, LOX, LNG, liquid argon and CO₂ systems
Also forCryogenic piping, storage tanks, vessels, industrial-gas systems
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Specifying a system

Construction and service are specified together.

A requirement is normally a combination of the two dimensions. Tell us the equipment and the service, and we confirm the construction that suits the access it needs.

Insulation construction against service
ConstructionHotColdCryogenic
Fixed / permanentSteam and hot-process lines, boilers, ductsChilled-water lines, refrigeration piping, cold storageCryogenic piping and storage tanks
Removable & reusableValves, flanges, exhausts, turbines, manwaysValves, flanges and fittings on cold serviceValves and fittings requiring periodic access

Examples of where each combination is normally used. The system for your equipment is confirmed during engineering review.

Materials & construction

Insulation materials & construction.

Material, thickness and protective construction are selected according to the application and technical requirement.

Selected according to

  • Operating temperature
  • Service conditions
  • Equipment geometry
  • Indoor or outdoor environment
  • Moisture exposure
  • Required surface temperature
  • Maintenance and access requirements

Systems in industrial use

Industrial insulation systems may involve materials and constructions such as those below. The specification for a given order is confirmed during engineering review.
  • Rock / mineral wool, ceramic fibre, calcium silicate
  • PUF / PUR, PIR, elastomeric and cellular / foam-glass insulation
  • High-temperature fabrics for removable jackets
  • Aluminium, GI or stainless-steel cladding
  • Vapour-barrier systems on cold and cryogenic service

Material and construction are selected according to the application and technical requirement. Isotherm confirms the material actually supplied against your specification at quotation stage.

Where we insulate

Equipment we cover.

PipingValvesFlangesPumpsStrainersHeat ExchangersReactorsVesselsTanksBoilersFurnacesTurbinesExhaust SystemsDuctsManwaysExpansion JointsInstrumentationProcess Equipment
Heating & insulation together

One partner for heating & insulation.

Heating, control and insulation are parts of the same thermal system. Isotherm engineers and manufactures across all three, so heat generation, temperature control and heat-transfer reduction can be specified together rather than sourced separately.

Industrial HeatersHeat TracingProcess HeatingTemperature Control PanelsSensors — Thermocouples & RTDsHot InsulationCold InsulationCryogenic InsulationFixed InsulationRemovable & Reusable InsulationInsulation JacketsCladdingSite Installation

Not sure which insulation system you need?

Tell us what you are insulating, the operating temperature, whether it needs regular access, and the sizes involved. Our team will recommend fixed or removable insulation and the right build.

Request a quote

Tell us what you need to insulate.

Send your requirement — a drawing, a spec, or the old part — and our engineers will come back with sizing, materials and pricing, usually within 24–48 hours.

Share the equipment or piping to be insulated, operating temperature, dimensions and any drawing or photograph available.

Optional — the more you share, the faster your quote
Thermal insulation details
PDF, JPG, PNG, DWG, DXF, STEP, Office documents or a ZIP. A photograph of the existing part is enough to start.

No drawing? Send us photographs and approximate dimensions of the equipment or piping. Our engineering team can review the application and recommend a suitable insulation system.

Request sent

Your requirement has reached our engineering team.

  1. Engineering reviews the requirement.
  2. We contact you if any technical information is missing.
  3. A technical and commercial offer is prepared, usually within 24–48 hours.

For urgent requirements, WhatsApp your drawing / specification or call us.

WhatsApp RequirementRequest Quote