GRAPHITE technology

Graphite Heat Exchangers

Corrosion-resistant graphite heat transfer equipment for acids and aggressive chemical process media.

HEXNOVAS Graphite Heat Exchangers
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Working principle

How the technology transfers heat.

Impermeable impregnated graphite blocks contain intersecting process and service channels. The two media remain separated while heat passes through the graphite walls, combining useful thermal conductivity with corrosion resistance.

Design pressure
Full vacuum to +1.0 MPa, subject to design
Design temperature
-60°C to +200°C, subject to material grade
Heat-transfer area
Project range up to 600 m²
Primary use
Corrosive chemical process media

Why this technology

Designed around performance, integrity and serviceability.

Product configuration

Structure and material options.

Available configurations

  • Cylindrical block-hole construction
  • Rectangular graphite block construction
  • PTFE-, rubber- or enamel-lined shell options
  • Vertical, horizontal or inclined installation

Material options

  • Impregnated impermeable graphite
  • Carbon steel or stainless steel shell components
  • PTFE gaskets between graphite blocks

Typical applications

Where this exchanger fits.

01

Hydrochloric and phosphoric acid service

02

Chemical absorption and cooling

03

Evaporation and condensation

04

Pharmaceutical and environmental processing

Selection information

What our engineers need from you.

Provide full chemical composition, concentration, temperatures, pressure or vacuum, fouling or crystallization risk and required graphite grade.

Frequently asked questions

Key questions before product selection.

How does Graphite Heat Exchangers work?

Impermeable impregnated graphite blocks contain intersecting process and service channels. The two media remain separated while heat passes through the graphite walls, combining useful thermal conductivity with corrosion resistance.

What information is required to select the right product?

Provide full chemical composition, concentration, temperatures, pressure or vacuum, fouling or crystallization risk and required graphite grade.

Which materials and configurations are available?

Impregnated impermeable graphite; Carbon steel or stainless steel shell components; PTFE gaskets between graphite blocks

How is the final product size confirmed?

The final size is confirmed by thermal calculation using flow rates, inlet and outlet temperatures, allowable pressure drop, design pressure and fluid properties.

Product documentation

Catalogue and technical downloads.

Use the published catalogue for product-range reference. Final dimensions, ratings and materials are confirmed for the selected model and operating duty.

Discuss this product

Turn your duty data into a practical selection.

Start an engineering enquiry