Seals and Gaskets


A comprehensive range of PTFE machined bellows are available, with or without flanges. These can help with expansion / contraction, to correct misalignment and absorb vibration.

Rotary shaft seals: standard plain-lip and hydrodynamic type. In addition to these we manufacture lantern rings, 'O' rings, V seals and cup seals.

Self lubricated bearings: we manufacture plain sleeve bearings, flanged bearings and metal-backed bearings.

High performance machined polymer parts suitable for the fine chemical and food processing industries.

Composite and specialty parts, manufactured for the demanding and hostile environments of chemical production plants.


The Ansitex® single mechanical seal-cartridge features a simple design and has only eleven different rugged components and has up to 50% fewer parts compared to products from other manufacturers.

The Cartex mechanical cartridge seal: the integrated circulation method of the Cartex DE replaces the external circulation pump for buffer fluids.

The Brugmann Industries TA-Luft compliant valve not only satisfies the requirements of TA-Luft but also meets the very highest demands in terms of purity standards.

The HRC-GSD gas-lubricated standard mechanical seal for chemical pumps is excellently suited for sealing media containing solid particles.

The TDGS elastomer-free metal bellows-type seal is a gas-lubricated seal optimally suited for use in single-stage steam turbines in the petrochemical and chemical industries.


Donit Tesnit boasts a wide range of calendared gasket materials.

Our wide range of cutting equipment provides competitive pricing and high-quality regardless of the gasket size or quantity.

We offer electrometric products, PTFE, composite and graphite-based sealing products, insulation materials and gaskets for industrial application.

Our technical service provides any advice you might need on the selection and use of our range of sealing materials and can help solve practically any sealing problem.


The most complete line of high-performance gaskets, packing and seals for the global process industry.

Garlock / Klozure mechanical seals, bearing isolators and large / small bore oil seals for process industries most demanding applications.

MULTISWELL gasket and HYDRA-JUST rotary seal, the 2006 Product of the Year finalists.

Garlock Helicoflex high-performance metal seals for high pressure and high temperature applications including nuclear, semiconductor, aerospace, power generation, chemical processing, and oil-and-gas.

Pikotek - critical service flange gaskets, spring-energized jacketed seals and electrical flange isolation kits (cathodic protection) for the oil-and-gas production, processing, transmission, pipeline, power generation and utility industries.


Supagraf® Control brings TA-Luft certified performance to control valves without affecting smooth action.

Supagraf® Premier for TA-Luft certified emission control tightness in rotary and rising stem block valves.

Metakamm® Kammprofile gaskets for flanges operating at up to 1,000°C or 250bar with TA-Luft tightness levels.

Metaflex® spiral-wound TA-Luft certified gaskets work from high vacuum to 350bar, or cryogenic level to 1,000°C.

RotaBolt® tension control for assured reliability of flange joint tightness.


TEADIT 24SH is a large gasket sheet produced from 100% pure, multi-directionally expanded PTFE.

TEADIT expanded PTFE gasket tapes 24 B and G-Lon.

TEADIT 25 BI is a multidirectionally expanded gasket-tape, produced from 100% pure PTFE.

Gasket sheets made of modified PTFE.

Our braided packings are made from the widest range of materials.


The Flexpro (formerly known as the Kammprofile) gasket offers a safe, effective seal under the most severe operating conditions on both standard pipe-work and special applications.

Thermiculite, an innovation by Flexitallic, is a high-temperature sheet gasket capable of withstanding extremes of temperatures without oxidation.

We provide a comprehensive range of semi-metallic gaskets, sheet gasket materials, pump and valve seals and metallic gaskets to a wide range of oil and gas, industrial, pulp and paper and automotive customers.

Flexitallic compression packings are the traditional sealing solution. A comprehensive range of fibre-based packings suitable for pump, valves and static seals.


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