Gaskets: Temperature Range -50°C to 450°C, Thickness 0.5-6.0 mm

Q: What factors determine gasket selection?

Selection depends on operating temperature, pressure, media compatibility, flange surface finish, bolt load, and required sealing performance. Material must resist chemical attack and maintain elasticity under compression.

Q: How do you prevent gasket failure?

Ensure proper surface preparation, correct bolt torque sequence, adequate gasket compression, and material compatibility with operating conditions. Regular inspection for signs of creep, blowout, or chemical degradation is essential.

Component Specifications

Definition

Gaskets are critical sealing components used in flange and holder assemblies to create a static seal between two stationary surfaces. They compensate for surface irregularities, prevent fluid or gas leakage, and maintain pressure integrity in mechanical systems. In industrial applications, they ensure operational safety and efficiency by sealing joints against environmental contaminants and internal media.

Working Principle

Gaskets work by deforming under compressive load to fill microscopic imperfections on mating surfaces, creating a tight seal. The applied bolt load compresses the gasket material, causing it to flow into surface irregularities and form a barrier against fluid or gas passage. Proper gasket selection ensures adequate sealing stress while preventing over-compression that could damage the assembly.

Materials

Common materials include: Non-asbestos fiber (NAF), graphite, PTFE (Teflon), rubber (EPDM, Nitrile, Silicone), metal (stainless steel, copper), and composite materials. Material selection depends on temperature range (-50°C to 1000°C), pressure (vacuum to 300 bar), chemical compatibility, and media type.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Thickness	0.5-6.0 mm
Compression Set	<20%
Pressure Rating	Up to 300 bar
Tensile Strength	5-50 MPa
Temperature Range	-50°C to 450°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

DIN 2690, ASME B16.21, EN 1514

Parent Products

This component is used in the following industrial products

Holder/Flange Assembly

A mechanical assembly that secures and seals a rupture disc within a pressure system.

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Engineering Analysis

Risks & Mitigation

Leakage due to improper installation
Material degradation from chemical exposure
Over-compression leading to gasket blowout
Thermal cycling causing fatigue failure

FMEA Triads

Trigger: Insufficient bolt torque
Failure: Leakage at flange joint
Mitigation: Follow torque specifications and sequence; use calibrated tools; re-torque after initial heat cycles

Trigger: Chemical incompatibility
Failure: Gasket material degradation and seal loss
Mitigation: Select chemically resistant materials; verify compatibility charts; conduct material testing

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.1 mm thickness, ±0.5 mm inner/outer diameter

Test Method

ASTM F36 for compressibility, ASTM F586 for leak rate, ISO 15592 for sealing performance under pressure

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Gaskets

Manufacturer profiles associated with Gaskets.

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Frequently Asked Questions

What factors determine gasket selection?