High-Performance NBR O-Rings - metric | Reichelt Chemietechnik

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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)

General Information NBR

Very good choice for applications involving mechanical load, as well as in mineral oils, fats and waxes, motor oils and fuels

Well suited for use in:

CIP / SIP media for continuous plants in the food, beverage and pharmaceutical industries

CIP (Cleaning in Place) = diluted acids or bases combined with cleaning additives

SIP (Sterilization in Place) = disinfectants, steam, oxidizing media (e.g. hypochlorite) and / or polar organic solvents (e.g. acetic acid)

Should not be used in concentrated acids (e.g. nitric or formic acid), concentrated oxidizing media (e.g. peracetic acid), aromatic and chlorinated hydrocarbons

Good abrasion resistance

Good thermal resistance

The level of ACN is tailored to the specific application, so that the optimal balance of chemical resistance and low-temperature flexibility is achieved

Good resistance to mineral oil and fuels, outstanding resistance to vegetable and animal oils, silicones, diluted acids and bases at room temperature

In aromatic and chlorinated hydrocarbons NBR is prone to swelling

Material: butadiene-acrylonitrile-rubber

Color: black

Crosslinking: peroxidic

Shore hardness A: 70° ±5 (test plate) (DIN 53505)

Temperature range: -20 to +100 °C

Density: approx. 1.17 g/cm³ (DIN EN ISO 1183)

Rebound elasticity: 28 % (DIN 53512)

Modulus at 100 % elongation: 5.5 N/mm² (DIN 53504)

Tensile strength: 18.5 N/mm² (DIN 53504)

Elongation at break: 240 % (DIN 53504)

Tear propagation resistance: 10 N/mm (DIN 53515)

Compression set: 20 % at +100 °C / 22 h / 25 %

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

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 drinking water industry: Germany (DVGW), KTW, W270, GB (WRAS)

Item	Inside Ø mm	Toleranz Innen-Ø mm	Schnur Ø mm	Toleranz Schnur-Ø mm	Einheit Stück	Price Euro*
404588	12	±0,19	3,5	±0,10	10	67.00
404589	12	±0,19	3,5	±0,10	20	114.00
404590	16	±0,20	3,5	±0,10	10	67.00
404591	16	±0,20	3,5	±0,10	20	114.00
404592	18	±0,21	3,5	±0,10	10	67.00
404593	18	±0,21	3,5	±0,10	20	114.00
404594	20	±0,22	3,5	±0,10	10	67.00
404595	20	±0,22	3,5	±0,10	20	114.00
404596	22	±0,24	3,5	±0,10	10	90.00
404597	22	±0,24	3,5	±0,10	20	150.00
404598	26	±0,26	3,5	±0,10	10	90.00
404599	26	±0,26	3,5	±0,10	20	150.00
404600	28	±0,28	3,5	±0,10	10	90.00
404601	28	±0,28	3,5	±0,10	20	150.00
404602	32	±0,32	5	±0,13	10	90.00
404603	32	±0,32	5	±0,13	20	150.00
404604	34	±0,33	5	±0,13	10	90.00
404605	34	±0,33	5	±0,13	20	150.00
404606	40	±0,38	5	±0,13	10	118.00
404607	40	±0,38	5	±0,13	20	200.00
404608	40,5	±0,39	5	±0,13	10	118.00
404609	40,5	±0,39	5	±0,13	20	200.00
404610	46,5	±0,44	5	±0,13	10	118.00
404611	46,5	±0,44	5	±0,13	20	200.00
404612	52	±0,48	5	±0,13	10	137.00
404613	52	±0,48	5	±0,13	20	229.00
404614	58,5	±0,54	5	±0,13	10	137.00
404615	58,5	±0,54	5	±0,13	20	229.00
404616	68	±0,61	5	±0,13	5	110.00
404617	68	±0,61	5	±0,13	10	189.00
404618	73,5	±0,66	5	±0,13	5	110.00
404619	73,5	±0,66	5	±0,13	10	189.00
404620	83	±0,73	5	±0,13	5	129.00
404621	83	±0,73	5	±0,13	10	223.00
404622	86,5	±0,75	5	±0,13	5	129.00
404623	86,5	±0,75	5	±0,13	10	223.00
404624	102	±0,87	5	±0,13	5	150.00
404625	102	±0,87	5	±0,13	10	259.00
404626	111	±0,91	5	±0,13	5	150.00
404627	111	±0,91	5	±0,13	10	259.00