High-Performance EPDM O-Rings - metric

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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 EPDM

Very well suited for use in:

Hot water and water steam (constant +180 °C, short-term +210 °C)

Glycoles and brake fluids (on glycol base)

Acids (hydrochloric and nitric acid)

Bases (sodium hydroxide, potassium hydroxide)

Ozone (+40 °C, 200 pphm) and oxygen

CIP /SIP media for continuous plants in the food, beverage and pharmaceutical industries (see EPDM diagram and fat diagram)

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

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

Well suited for use in animal fats at low temperatures

Should not be used in mineral fats, oils and waxes, fuels

Recommended lubricant for installation:

Silicone grease (e.g. Paraliq GTE 703 with NSF H1 approval) (see fat diagram)

Explanation: This EPDM O-Ring (at low temperatures) is very well suited even at high fat content. Once the curve in the diagram is achieved, another suitable material type (FPM, VMQ or HNBR) should be chosen for the respective application.

Food quality

Very good resistance to weather and aging

Very good resistance to light

Good cold and thermal resistance

Good elastic behaviour

Good elongation at break and tearing strength

Very good abrasion resistance

Very good resistance to polar and oxidative media

Material: EPDM (ethylene-propylene-diene rubber)

Color: black

Crosslinking: peroxidic

Shore hardness A: 75° ±5 (test plate) (DIN 53505)

IRHD: 70 +5/-8 (o-ring) (DIN ISO 48 M)

Density: 1.09 g/cm³ (DIN EN ISO 1183)

Rebound elasticity: 46 % (DIN 53512)

Modulus at 100 % elongation: 9.8 N/mm² (DIN 53504)

Tensile strength: 16.2 N/mm² (DIN 53504)

Elongation at break: 165 % (DIN 53504)

Tear propagation resistance: 11.5 N/mm² (DIN 53515)

Compression set:

10 % at +100 °C / 24 h / 25 %

15 % at +150 °C / 24 h / 25 %

24 % at +150 °C / 70 h / 25 % (DIN ISO 815)

Temperature range: -40 to +150 °C in air; -40 to +180 °C in water and steam

Sterilization temperature: +121 °C (perishable foods and pharmacy)

Cleaning temperature: +82 °C (perishable foods)

Regulations:

For the food processing industry: conforming to FDA (21 CFR 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 up to +121 °C

For the drinking water industry: USA (NSF 61); GB (WRAS); Austria (ÖVGW); France (ACS); Germany (DVGW) KTW, W 270, W 534

Item	Inside Ø mm	Toleranz Innen-Ø mm	Schnur Ø mm	Toleranz Schnur-Ø mm	Einheit Stück	Price Euro*
400738	12	±0,19	3,5	±0,10	10	73.00
400739	12	±0,19	3,5	±0,10	20	127.00
400740	16	±0,20	3,5	±0,10	10	73.00
400741	16	±0,20	3,5	±0,10	20	127.00
400742	18	±0,21	3,5	±0,10	10	73.00
400743	18	±0,21	3,5	±0,10	20	127.00
400744	20	±0,22	3,5	±0,10	10	73.00
400745	20	±0,22	3,5	±0,10	20	127.00
400746	22	±0,24	3,5	±0,10	10	99.00
400747	22	±0,24	3,5	±0,10	20	170.00
400748	26	±0,26	3,5	±0,10	10	99.00
400749	26	±0,26	3,5	±0,10	20	170.00
400750	28	±0,28	3,5	±0,10	10	99.00
400751	28	±0,28	3,5	±0,10	20	170.00
400752	32	±0,32	5	±0,13	10	99.00
400753	32	±0,32	5	±0,13	20	170.00
400754	34	±0,33	5	±0,13	10	125.00
400755	34	±0,33	5	±0,13	20	212.00
400756	40	±0,38	5	±0,13	10	125.00
400757	40	±0,38	5	±0,13	20	212.00
400758	40,5	±0,39	5	±0,13	10	125.00
400759	40,5	±0,39	5	±0,13	20	212.00
400760	46,5	±0,44	5	±0,13	10	125.00
400761	46,5	±0,44	5	±0,13	20	212.00
400762	52	±0,48	5	±0,13	5	105.00
400763	52	±0,48	5	±0,13	10	185.00
400764	58,5	±0,54	5	±0,13	5	105.00
400765	58,5	±0,54	5	±0,13	10	185.00
400766	68	±0,61	5	±0,13	5	105.00
400767	68	±0,61	5	±0,13	10	185.00
400768	73,5	±0,66	5	±0,13	5	129.00
400769	73,5	±0,66	5	±0,13	10	223.00
400770	83	±0,73	5	±0,13	5	129.00
400771	83	±0,73	5	±0,13	10	223.00
400772	86,5	±0,75	5	±0,13	5	170.00
400773	86,5	±0,75	5	±0,13	10	296.00
400774	102	±0,87	5	±0,13	5	170.00
400775	102	±0,87	5	±0,13	10	296.00
400776	111	±0,91	5	±0,13	5	170.00
400777	111	±0,91	5	±0,13	10	296.00