High-Performance EPDM Flat Seals

Application area Very well suited for use in: Water, glycoles and brake fluids (on glycol... more

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Application area

Very well suited for use in:

Water, glycoles and brake fluids (on glycol base), acids (hydrochloric and nitric acid), bases (sodium hydroxide, potassium hydroxide), polar organic solvents (e.g. acetic acid), oxidizing media (e.g. peracetic acid).

Should not be used in:

Mineral fats, oils and waxes, fuels.

Product specification

Very good resistance to weather and aging

Good cold and thermal resistance

Good elastic behaviour

Good elongation at break and tearing strength

Very good resistance to polar media

Technical specification

Material: EPDM (ethylene-propylene-diene rubber)

Color: black

Crosslinking: peroxidic

Shore hardness A: 65° ±5 (test plate) (DIN 53505)

Temperature range: -25 to +120 °C

Density: approx. 1.30 g/cm³ (DIN 53505)

Tearing strength: >5 MPa (ISO 37)

Elongation at break: >200 % (DIN 53504)

General Information Flat seals are usually stamped as rings. For more complicated geometries,... more

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General Information

Flat seals are usually stamped as rings. For more complicated geometries, the rings are frequently cut by means of plotter or water jet. Rings are defined by the dimensions of the internal and external diameter as well as by the total thickness of the ring but often also by nominal diameter and pressure stage according to DIN 2690, 2691 (or 2692). For the purpose of harmonizing standards, these former flat seal standards are summarized in the EU standard DIN.

EN 1514-1. Still, the following sub-descriptions serve the purpose of illustrating the individual shapes: former DIN 2690: now EN 1514-1 Form IBC for smooth flanges; former DIN 2691: now EN 1514-1 Form TG for flanges with groove and tongue.

Advantages compared with other sealing elements:

symmetrical cross section, simple compact design, easy installation, wide selection of materials, grooving not required

Most common application: Flange sealing against liquid or gaseous media; static or quasistatic applications only.

Further applications: Housing and cover sealings.

Method of operation: The flat seal is axially pressed when mounting. The axial press force has to be greater than the sum of all radially acting forces to eliminate the risk of leakage. Cross-sectional leakage (the leakage diffused through the sealing material) is minimized by the selection of the right material. An optimal grouting of the flat seal prevents surface leakage, i.e. leakage occurring between flange and seal.

Materials for special requirements:

These flat seals are especially suited for use in processes that must comply with TA-Luft requirements.

Form IBC for smooth flanges: NW 10 to 200, PN 2.5 to 63

Form TG for flanges with groove and tongue: NW 10 to 200, PN 10 to 160

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.

Item	Design¹	Innen-Ø mm	Außen-Ø mm	Höhe mm	NW mm	PN bar	Einheit Stück	Price Euro*
408976	IBC	18	39	3	10	6	10	111.00
408977	IBC	18	39	3	10	6	20	192.00
408978	IBC	18	46	3	10	40	10	111.00
408979	IBC	18	46	3	10	40	20	192.00
408980	IBC	18	56	3	10	63	10	111.00
408981	IBC	18	56	3	10	63	20	192.00
408982	IBC	22	44	3	15	6	10	111.00
408983	IBC	22	44	3	15	6	20	192.00
408984	IBC	22	51	3	15	40	10	111.00
408985	IBC	22	51	3	15	40	20	192.00
408986	IBC	21	61	3	15	63	10	111.00
408987	IBC	21	61	3	15	63	20	192.00
408988	IBC	27	54	3	20	6	10	156.00
408989	IBC	27	54	3	20	6	20	267.00
408990	IBC	27	61	3	20	40	10	156.00
408991	IBC	27	61	3	20	40	20	267.00
408992	IBC	25	72	3	20	63	10	156.00
408993	IBC	25	72	3	20	63	20	267.00
408994	IBC	34	64	3	25	6	10	156.00
408995	IBC	34	64	3	25	6	20	267.00
408996	IBC	34	71	3	25	40	10	156.00
408997	IBC	34	71	3	25	40	20	267.00
408998	IBC	30	82	3	25	63	10	156.00
408999	IBC	30	82	3	25	63	20	267.00
409000	IBC	43	76	3	32	6	10	192.00
409001	IBC	43	76	3	32	6	20	327.00
409002	IBC	43	82	3	32	40	10	192.00
409003	IBC	43	82	3	32	40	20	327.00
409004	IBC	41	88	3	32	63	10	192.00
409005	IBC	41	88	3	32	63	20	327.00
409006	IBC	49	86	3	40	6	10	192.00
409007	IBC	49	86	3	40	6	20	327.00
409008	IBC	49	92	3	40	40	10	192.00
409009	IBC	49	92	3	40	40	20	327.00
409010	IBC	47	103	3	40	63	10	192.00
409011	IBC	47	103	3	40	63	20	327.00
409012	IBC	61	96	3	50	6	10	222.00
409013	IBC	61	96	3	50	6	20	378.00
409014	IBC	61	107	3	50	40	10	222.00
409015	IBC	61	107	3	50	40	20	378.00
409016	IBC	59	113	3	50	63	10	222.00
409017	IBC	59	113	3	50	63	20	378.00
409018	IBC	77	116	3	65	6	10	321.00
409019	IBC	77	116	3	65	6	20	543.00
409020	IBC	77	127	3	65	40	10	321.00
409021	IBC	77	127	3	65	40	20	543.00
409022	IBC	73	138	3	65	63	10	321.00
409023	IBC	73	138	3	65	63	20	543.00
409024	IBC	89	132	3	80	6	10	351.00
409025	IBC	89	132	3	80	6	20	585.00
409026	IBC	89	142	3	80	40	10	351.00
409027	IBC	89	142	3	80	40	20	585.00
409028	IBC	86	148	3	80	63	10	351.00
409029	IBC	86	148	3	80	63	20	585.00
409030	IBC	115	152	3	100	6	10	381.00
409031	IBC	115	152	3	100	6	20	630.00
409032	IBC	115	162	3	100	16	10	381.00
409033	IBC	115	162	3	100	16	20	630.00
409034	IBC	115	168	3	100	40	10	381.00
409035	IBC	115	168	3	100	40	20	630.00
409036	IBC	110	174	3	100	63	10	381.00
409037	IBC	110	174	3	100	63	20	630.00
409038	IBC	141	182	3	125	6	5	288.00
409039	IBC	141	182	3	125	6	10	498.00
409040	IBC	141	192	3	125	16	5	288.00
409041	IBC	141	192	3	125	16	10	498.00
409042	IBC	141	194	3	125	40	5	288.00
409043	IBC	141	194	3	125	40	10	498.00
409044	IBC	135	210	3	125	63	5	288.00
409045	IBC	135	210	3	125	63	10	498.00
409046	IBC	169	207	3	150	6	5	339.00
409047	IBC	169	207	3	150	6	10	585.00
409048	IBC	169	218	3	150	16	5	339.00
409049	IBC	169	218	3	150	16	10	585.00
409050	IBC	169	224	3	150	40	5	339.00
409051	IBC	169	224	3	150	40	10	585.00
409052	IBC	163	247	3	150	63	5	339.00
409053	IBC	163	247	3	150	63	10	585.00
409054	IBC	220	262	3	200	6	5	393.00
409055	IBC	220	262	3	200	6	10	654.00
409056	IBC	220	273	3	200	16	5	393.00
409057	IBC	220	273	3	200	16	10	654.00
409058	IBC	220	284	3	200	25	5	393.00
409059	IBC	220	284	3	200	25	10	654.00
409060	IBC	220	290	3	200	40	5	393.00
409061	IBC	220	290	3	200	40	10	654.00
409062	IBC	210	309	3	200	63	5	393.00
409063	IBC	210	309	3	200	63	10	654.00
409064	TG	29	39	3	15		10	111.00
409065	TG	29	39	3	15		20	192.00
409066	TG	36	50	3	20		10	156.00
409067	TG	36	50	3	20		20	267.00
409068	TG	43	57	3	25		10	156.00
409069	TG	43	57	3	25		20	267.00
409070	TG	51	65	3	32		10	192.00
409071	TG	51	65	3	32		20	327.00
409072	TG	61	75	3	40		10	192.00
409073	TG	61	75	3	40		20	327.00
409074	TG	73	87	3	50		10	222.00
409075	TG	73	87	3	50		20	378.00
409076	TG	95	109	3	65		10	321.00
409077	TG	95	109	3	65		20	543.00
409078	TG	106	120	3	80		10	351.00
409079	TG	106	120	3	80		20	585.00
409080	TG	129	149	3	100		10	381.00
409081	TG	129	149	3	100		20	630.00
409082	TG	155	175	3	125		5	288.00
409083	TG	155	175	3	125		10	498.00
409084	TG	183	203	3	150		5	339.00
409085	TG	183	203	3	150		10	585.00
409086	TG	239	259	3	200		5	393.00
409087	TG	239	259	3	200		10	654.00