O-rings handle hostile sealing environments
A
Dichtomatik product story
Edited by the Engineeringtalk editorial team
Nov 24, 2004
Specialist sealing products company Dichtomatik has added Teflon-encapsulated O-rings to its range.
Specialist sealing products company Dichtomatik has added Teflon-encapsulated O-rings to its range.
The rings consist of a seamless and uniform FEP encapsulation which completely encloses a core material of either silicone or Viton elastomer.
This combination provides resistance to hardening and embrittlement due to the FEP encapsulation, while retaining the mechanical properties of flexibility and elastomeric memory of the core materials, which provides a low compression set.
The O-rings are designed for hostile sealing environments, as they provide a high level of resistance to solvents and most chemicals, with a temperature performance range of -60 to +205C.
Low vapour permeability and minimal water absorption is also achieved.
The FEP encapsulation of the ring is said to have a very low coefficient of friction.
Safety critical industries, or production based on continuous operation can benefit from these cost effective seals, which provide superior sealing for both static and dynamic requirements.
Typical applications include chemical and petrochemicals processing, food, pharmaceutical, polymer and dye production, semiconductor, refrigeration and paint and coating operations.
Seals can currently be supplied in BS sizes from 014 to 475, and standard rings with an inside diameter in excess of 3000mm can be produced with a cross-section of up to and including 20mm.
Large stocks are available in a wide range of sizes for immediate despatch.
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