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Hiren Pipes & Fittings
Industrial gaskets and sealing — Spiral wound, RTJ — Hiren Pipes & Fittings

Spiral Wound · RTJ · Kammprofile · MIJ

Gaskets & Sealing Products

Full range of gaskets and sealing products for all flange face types, pressure ratings and temperature ranges. ANSI B16.20 standard spiral wound and RTJ gaskets in stock.

Gasket Types

Spiral Wound Gaskets

ANSI B16.20 / ASME B16.20

Created by winding alternating strips of metal and filler material. Consists of a steel centering (outer) ring, a spiral wound sealing strip and an inner ring. Ideal for fluctuating temperature and pressure conditions.

Filler: Graphite, PTFE, Non-Asbestos, Ceramic

Face types: RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint)

Materials: SS 304, SS 316, Monel, Inconel — winding; CS, SS — rings

Ring Type Joint Gaskets (RTJ)

ASME B16.20

Metallic ring gaskets that seat in grooves machined on the flange face. Provides superior sealing under high pressure and temperature. Types: Oval and Octagonal ring profiles.

Filler: Solid metal (no filler)

Face types: RTJ groove only

Materials: Soft Iron, SS 304/316, Monel 400, Inconel 625

Kammprofile Gaskets

DIN 2697

Solid metal core with concentric grooves on both faces, with a soft sealing layer. Combines metal gasket durability with soft material sealing. Reusable in many applications.

Filler: Graphite, PTFE layers bonded to grooved metal core

Face types: RF / FF / tongue & groove

Materials: CS, SS 304/316, Monel, Inconel core

Heat Exchanger Gaskets

As per HEI / TEMA

Designed for shell & tube heat exchangers and other heat transfer equipment. Available in full-face and inside-bolt-circle designs.

Filler: Non-Asbestos, PTFE, Graphite, Rubber

Face types: Full Face / Inside Bolt Circle

Materials: Non-metallic and semi-metallic

Double Jacketed Gaskets

ASME B16.20

Two metal jackets with a soft filler core. Provides excellent temperature and pressure resistance. Good for heat exchangers and high-pressure vessels.

Filler: Graphite, Asbestos, Non-Asbestos core

Face types: RF / FF

Materials: SS 304/316, CS, Monel metal jacket

Insulating Kit Gaskets

As per project spec

Prevents galvanic corrosion between dissimilar metals. Includes insulating gasket, bolt isolation sleeves and washers. Used at cathodic protection interfaces.

Filler: G-10/G-11 fiberglass, PTFE, Phenolic

Face types: RF / FF

Materials: Fiberglass / Phenolic / PTFE

Monolithic Insulation Joints (MIJ)

As per project spec

Pre-fabricated, factory-tested dielectric isolation joints for pipelines. Used for cathodic protection isolation at buried pipeline transitions from above-ground to buried sections.

Filler: Epoxy resin / polyurethane

Face types: Butt-weld ends

Materials: CS / SS body with insulating filler

Gasket Sheet Materials & Cut Gaskets

Cut soft gaskets manufactured as per ANSI B16.20 covering RF & FF type flanges. Custom shapes and sizes available on request.

Non-Asbestos Gasket Sheets

Available in various grades for different chemical compatibility. Blue, white and yellow grades.

PTFE / Teflon Sheets & Tapes

Chemical-resistant, food-grade. Full-face, inside bolt circle and custom shapes. Also PTFE rope/cord.

Graphite / Graphoil Sheets

Excellent for high-temperature steam, chemical and refinery service. Flexible graphite with SS tanged insert.

Asbestos Sheets

Available on request for specific legacy applications where still permissible.

Rubber Sheets (EPDM / Neoprene)

For low-pressure water, air and mild chemicals. Available in different hardness grades.

Ceramic / High-Temp Sheets

For extreme temperature service above 500°C. Used in furnaces, boilers and kilns.

Gland Packing Rope

Braided packing rope for valve glands and pump stuffing boxes. Graphite, PTFE, Kevlar options.

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