High-Performance FEP-Encapsulated Silicone O-Rings

High-Performance FEP-Encapsulated Silicone O-Rings

Application area Very well suited for use in: Almost all chemicals, polar media such as... more

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Application area

Very well suited for use in:

Almost all chemicals, polar media such as steam, concentrated acids, alkalis and organic solvents, oxidizing media (e.g. peracetic acid), mineral oils, fuels, vegetable and animal oils, silicones.

Should not be used:

When the application requires the O-Ring to have a tighter sealing capability than that of the core through the thermoplastic shell.

Product specification

Universal chemical resistance (comparable to PTFE)

Large temperature operating ranges

Well suited to food processing, pharmaceutical and medical applications

Low permeability

Low coefficient of friction prevents stick-slip-effect

Very good resistance to weather and aging

Very good abrasion resistance

Technical specification

Material:

Shell: FEP (fluoroethylene-propylene)

Core: silicone (methyl vinyl silicone rubber)

Color:

Shell: transparent

Core: red

Crosslinking: peroxidic

Shore hardness A: 70° ±5 (test plate)

Temperature range: -60 to +200 °C

Density: approx. 1.35 g/cm³

Tensile strength: min. 700 psi

Tear propagation resistance: min. 40 ppi

Elongation at break: >100 %

Sterilization temperature: +149 °C (for perishable foods); +121 °C (for pharmacy)

Cleaning temperature: +82 °C (for perishable foods)

Regulations:

For the food processing industry: conforming to FDA (CFR 21 §177.2600), free from animal derived ingredients (ADI free)

For perishable foods: 3-A^® Sanitary Standards Class II

For the pharmacy: USP Plastic Class VI at +121 °C

(valid for the FEP-shell)

General Information O-Rings These O-Ring materials are specially developed for use in the... more

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General Information O-Rings

These O-Ring materials are specially developed for use in the food processing, pharmaceutical, petrochemical and chemical industries, as well as in technological processes

Design: O-Rings are vulcanised in moulds

Method of operation: O-Rings are double-acting sealing elements. The initial squeeze acting in a radial or axial direction due to the installation gives the O-Ring its initial sealing capability. These forces are superimposed by the system pressure to create the total sealing force which increases with increasing system pressure. Under pressure, the O-Ring behaves in a similar way to a fluid with high surface tension. The pressure is transmitted uniformly to all directions (see Figure Sealing forces).

Compared with other sealing elements, the O-Ring has a wide range of advantages: Inexpensive, allows low cost solutions; simple, one-piece groove design reduces hardware and design costs; compact design allows smaller hardware; easy, foolproof installation reduces risk; applicable to a wide range of sealing problems, static, dynamic, single or double acting; wide compound choice for compatibility with most fluids

Most common applications: Sealing of static machine parts against liquid or gaseous media; as a radial static seal, e.g. for bushings, covers, pipes, cylinders; as an axial static seal, e.g. for flanges, plates, caps; as a dynamic sealing element at axial, rotating and oscillating movements

Branch-specific sealing solutions: Approvals and conformities in the food processing industry: ADI free, FDA, 3-A; Sanitary Standards; pharmaceutical industry: ADI free, USP Class VI

Petrochemical industry: ex. decompression

Chemistry: permeation density and chemical stability

Dimensions: Inched ARP 001 - 932; Metric ID 3 - 193 mm; Cord thickness 1 - 8 mm

Manufacturing: According to the latest standards, with an optimal tool park, for quick and flexible handling, the traceability of materials is guaranteed, all parts go through a quality check before packaging

Usual application areas for elastomers regarding temperature and polarity of the used media

Approvals and certificates in the food, pharmaceutical and drinking water industries (see list of approvals)

Usual cleaning media for continuous plants in the food and pharmaceutical industries (see list of cleaning products)

Item	Inside Ø mm	Schnur Ø mm	Einheit Stück	Price Euro*
408242	12,42	1,78	5	186.00
408243	12,42	1,78	10	320.00
408244	14	1,78	5	186.00
408245	14	1,78	10	320.00
408246	15,6	1,78	5	186.00
408247	15,6	1,78	10	320.00
408248	17,17	1,78	5	192.00
408249	17,17	1,78	10	332.00
408250	18,77	1,78	5	192.00
408251	18,77	1,78	10	332.00
408252	20,35	1,78	5	200.00
408253	20,35	1,78	10	346.00
408254	21,95	1,78	5	200.00
408255	21,95	1,78	10	346.00
408256	23,52	1,78	5	214.00
408257	23,52	1,78	10	374.00
408258	25,12	1,78	5	214.00
408259	25,12	1,78	10	374.00
408260	26,7	1,78	5	228.00
408261	26,7	1,78	10	396.00
408262	28,3	1,78	5	228.00
408263	28,3	1,78	10	396.00
408264	29,87	1,78	5	238.00
408265	29,87	1,78	10	412.00
408266	31,47	1,78	5	252.00

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