Heat Exchanger Gasket

Differentiation in Exchanger Gaskets

Many suppliers offer generic labels but miss details that matter: partition bar layouts, ring configurations, and selection by duty.

We map options across spiral wound, camprofile, double jacketed, RTJ, graphite, and PTFE/ePTFE. Defined thickness ranges, pass-partition solutions, and OEM/ODM support from CAD to shipment set our range apart.

Heat Exchanger Gaskets for Industrial Service: Overview

These gaskets seal channel covers, floating heads, and flanges in oil and gas, natural gas processing, chemicals, power generation, and metallurgy.

CAD-based manufacturing and drawing-led customization let us match non‑standard sizes and multi‑pass designs. We also support urgent outages and logo marking on request.

What is a Heat Exchanger Gasket?

It is a compressible barrier that seals media between mating surfaces under thermal cycling and pressure. We supply metallic and semi‑metallic profiles (spiral wound, camprofile/serrated, double metal jacketed, RTJ) and soft‑material options (graphite, PTFE/ePTFE) selected by media, temperature, and available bolt load.

Typical placements

Channel cover gaskets, floating head covers, pass‑partition gaskets, bonnet closures, and nozzle connections in condensers, reboilers, amine units, and heat recovery systems.

Types and Selection

Choose based on pressure class, temperature, media compatibility, flange finish, and bolt load. Our engineers balance tightness, recovery, and ease of installation.

Spiral Wound (DH-G-SW)

Resilient under cycling; suited to high pressure and temperature. Inner and outer rings control compression and protect windings.

Key features

• SS/Inconel windings with graphite or PTFE fillers

• Centering and inner rings for blowout resistance

• Pass‑partition bar options for multi‑pass channel heads

Camprofile

Serrated metal core with soft facing achieves tight sealing at lower seating stress and supports refurbishment.

Key features

1、Facings: graphite or PTFE; cores: SS or Inconel

2、Groove profiles tuned for stress distribution and recovery

3、Available with carrier rings and custom diameters

Double Metal Jacketed (DH-G-DJ)

A soft filler enclosed in a continuous metal jacket. Durable in steam, condensate, and thermal oil where flanges are smooth.

Key features

1、Jackets in SS and other alloys; graphite or ceramic fillers

2、Split and pass‑bar configurations for multi‑pass heads

Ring Type Joint (DH-G-RJ)

Metal‑to‑metal sealing for compact, high‑pressure closures with oval or octagonal profiles.

Key features

1、Made to drawing with hardness control and traceability

2、Custom materials on request for sour service

Graphite Gaskets

Reinforced graphite sheets with SS or Inconel inserts combine heat resistance and chemical compatibility. They conform to imperfect flanges.

Material options

1、Tanged, foil‑inserted, or wire mesh inserts

2、Thickness: 1.0–20.0 mm; dimensions to EN 1514‑1 and ASME B16.21

PTFE / ePTFE Gaskets

Inert and clean for aggressive chemicals. ePTFE enhances compressibility at lower bolt loads.

When to choose

1、PTFE for strong acids/solvents at moderate temperatures (food‑grade available)

2、ePTFE for micro‑scratch sealing and low seating stress

3、PTFE (RPTFE) and expanded PTFE sheets supported

Core Benefits

✅OEM/ODM precision: We replicate legacy dimensions and partition layouts from CAD or samples.

✅Material engineering: Graphite, PTFE/ePTFE, reinforced graphite, and metallic cores/alloys resist thermal shock, cycling, and corrosive media.

✅Fast turnaround: Dedicated capacity for urgent schedules with documented QC.

✅Compliance and traceability: Dimensions to EN 1514‑1 and ASME B16.21 with material records on request.

✅Branding support: Optional logo marking without affecting fit or performance.

Technical Parameters

Sizes and tolerances

Custom diameters and widths per drawing. Tight ring concentricity and accurate partition bar fitment ensure consistent seating.

Surface finish and serrations

Camprofile serrations and facings matched to flange roughness. Spiral wound inner/outer rings shield windings from flange defects.

Pressure and temperature (indicative)

Metallic and semi‑metallic styles handle elevated pressures and temperatures. PTFE/ePTFE suit moderate temperature, high‑corrosion duties. Exact limits depend on size, material, and flange class.

Installation and Service

Best practices

✅Inspect flange faces and alignment.

✅Install dry unless specified.

✅Apply calibrated torque in cross‑pattern steps.

✅Re‑check after heat‑up if permitted.

Common failure modes

Limit creep relaxation, blowout, and chemical attack with correct profile/filler, proper compression, and single‑use where required.

Industry Use Cases

✅Oil and gas and natural gas processing: Spiral wound and RTJ gaskets seal separators, amine sweetening, and dehydration trains under cycling.

✅Chemical processing: PTFE/ePTFE and graphite resist acids, solvents, and oxidizers in reactors, condensers, and scrubbers.

✅Power generation and metallurgy: Camprofile and double jacketed styles perform in condensers, feedwater heaters, and heat recovery equipment.

Ordering and Customization Workflow

How to specify

Provide media, temperature/pressure, flange type/finish, target bolt load, dimensions, partition bar needs, and preferred standard (EN 1514‑1 or ASME B16.21).

From CAD to shipment

We convert CAD to tooling, select materials, sample if needed, then produce with QC and protective packaging.

Related Sealing Products

1、Insulation kits (DH‑S) for flange isolation and galvanic corrosion control

2、Gland packing for valves and pumps near exchangers

FAQs

How do I choose between spiral wound and camprofile?

Choose spiral wound for high recoverability under variable loads. Choose camprofile for tight sealing at lower seating stress or when refurbishing imperfect flanges.

Can you match legacy OEM part numbers and partition layouts?

Yes. Send the part number or a drawing. We will reverse‑engineer dimensions, partition bars, and materials to supply a drop‑in replacement.