Illustrative image of the product type. Photo: Achim Hering, source, CC BY 3.0.

Calcium Silicate Products

Calcium Silicate Pipe Section

Rigid, pre-formed half-sections of calcium silicate insulation that fit around hot pipework, and flat blocks for vessels and equipment. Load-bearing and dimensionally stable for steam lines and boiler pipework. Sizes and grade confirmed on quotation.

Also known as: Calcium silicate pipe insulation, Cal-sil pipe section, Calcium silicate block, Calsil pipe covering

Temperature rating
Grade-dependent; confirmed with the datasheet on quotation
Packaging
Cartons, confirmed on quotation
Availability
Out of stock
Supply basis
Quotation against specification

About Calcium Silicate Pipe Section

Calcium Silicate Pipe Section is rigid calcium silicate insulation moulded as half-shells that close around a pipe. Flat blocks of the same material insulate vessels, ducts and equipment. Like calcium silicate board, it holds its shape under load, so it does not compress at pipe supports or under cladding the way soft insulation does.

It is the standard insulation for high-temperature steam lines, boiler and turbine pipework, and hot process piping in power plants, refineries and sugar factories. Sections are wired or banded in place, with joints staggered, and finished with metal cladding.

Sections are made to match pipe sizes in several thicknesses. Bore, thickness and grade are confirmed on quotation.

Zenco Systems supplies calcium silicate pipe sections and blocks from Nairobi across Kenya and East Africa, alongside calcium silicate board.

Technical Specification

Material CompositionHydrated calcium silicate with reinforcing fibres†
Temperature RatingGrade-dependent; confirmed with the datasheet on quotation†
Dimensions & ThicknessBore to suit pipe size; thickness and block size confirmed on quotation†

† Indicative figures for this material class. Grade, density and temperature rating vary between manufacturers, so these are confirmed against the manufacturer's datasheet for the grade supplied when we quote. Request the datasheet for the certified values.

Applications

Steam lines and hot process pipework where the insulation must carry load.

  • High-temperature steam lines
  • Boiler and turbine pipework
  • Hot process piping
  • Pipe supports and load-bearing positions
  • Vessels and equipment (blocks)

Forms, Sizes & Packaging

Packaging

Cartons, confirmed on quotation

Supply Region

East Africa

Supplier

Zenco Systems Ltd

Packaging options

  • Cartons, confirmed on quotation

Selection & Installation Guidance

Installation

Fit half-sections around the pipe with joints staggered, secure with stainless wire or bands, and finish with metal cladding.

Choose calcium silicate where the insulation must carry load or resist damage — supports, high-pressure steam, foot traffic. On long low-load runs, rockwool pipe sections cost less.

To request a quotation, send the pipe outside diameters, lengths, line temperature and delivery site.

Safety & Handling

Cutting produces dust. Wear a dust mask, gloves and eye protection, and keep sections dry before installation.

Documentation

The manufacturer's technical datasheet and safety data sheet for the grade supplied are issued with every quotation, and name the certified values for this material.

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Frequently Asked Questions

Why use calcium silicate instead of rockwool on pipes?

Calcium silicate is rigid and load-bearing, so it does not crush at supports or under cladding. Rockwool is cheaper on long runs where there is no load.

Do you supply flat blocks as well as pipe sections?

Yes, for vessels, ducts and equipment. State the block size and thickness when you enquire.

What should I send to get a quotation?

The pipe outside diameters, lengths, line temperature and delivery site. Availability, packaging, transport and documentation are confirmed by the sales team before dispatch.

Request a Quotation for Calcium Silicate Pipe Section

Tell us the grade, dimensions and quantity you need and we will come back with a price, the manufacturer's datasheet and lead time for your order.

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