High-Performance Aramid Flat Seals

Application area Very well suited for use in: Non-critical liquid and gaseous media, at... more

Close menu

Application area

Very well suited for use in:

Non-critical liquid and gaseous media, at higher temperatures and compressive loading.

Should not be used in:

Concentrated acids and concentrated alkalis.

Product specification

Raw material combination of high-quality aramid fibres, functional fillers and NBR

Good tensile strength

High pressure resistance

Very low gas leakage

Very good resistance to oil

Very low setting behavior

Technical specification

Color: light green on both sides

Binding material: NBR

Nonstick coating: PTFE on both sides

Density: 1.80 g/cm³ (DIN 28 090-2)

Tensile strength: 27 N/mm² (MD); 10 N/mm² (CD) (DIN 52910)

Pressure resistance: 39 N/mm² (+175 °C); 25 N/mm² (+300 °C) (DIN 52913)

Compressibility: 7 % (ASTM F 36 J)

Recovery: 65 % (ASTM F 36 J)

Cold compressibility KSW: 6.0 % (DIN 28090-2)

Cold recovery KRW: 3.0 % (DIN 28090-2)

Hot creep WSW/200: 5.5 % (DIN 28090-2)

Hot recovery WRW/200: 2.0 % (DIN 28090-2)

Recovery R: 0.040 mm (DIN 28090-2)

Specific leakage rate: 0.100 mg/m*s (DIN 3535-6)

Specific leakage rate 2.0: 0.100 mg/m*s (DIN 28090-2)

Chlorine content: 300 ppm (Siemens AV 9-014)

Max. temperature: +200 °C (depending on pressure)

Max. operating pressure: 100 bar (depending on temperature)

Regulations: DVGW, HTB, KTW, WRC, BAM (max. +60 °C / 130 bar)

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

Close menu

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*
409312	IBC	18	39	2	10	6	10	88.00
409313	IBC	18	39	2	10	6	20	149.00
409314	IBC	18	46	2	10	40	10	88.00
409315	IBC	18	46	2	10	40	20	149.00
409316	IBC	18	56	2	10	63	10	88.00
409317	IBC	18	56	2	10	63	20	149.00
409318	IBC	22	44	2	15	6	10	94.00
409319	IBC	22	44	2	15	6	20	158.00
409320	IBC	22	51	2	15	40	10	94.00
409321	IBC	22	51	2	15	40	20	158.00
409322	IBC	21	61	2	15	63	10	94.00
409323	IBC	21	61	2	15	63	20	158.00
409324	IBC	27	54	2	20	6	10	109.00
409325	IBC	27	54	2	20	6	20	185.00
409326	IBC	27	61	2	20	40	10	109.00
409327	IBC	27	61	2	20	40	20	185.00
409328	IBC	25	72	2	20	63	10	109.00
409329	IBC	25	72	2	20	63	20	185.00
409330	IBC	34	64	2	25	6	10	116.00
409331	IBC	34	64	2	25	6	20	193.00
409332	IBC	34	71	2	25	40	10	116.00
409333	IBC	34	71	2	25	40	20	193.00
409334	IBC	30	82	2	25	63	10	116.00
409335	IBC	30	82	2	25	63	20	193.00
409336	IBC	43	76	2	32	6	10	135.00
409337	IBC	43	76	2	32	6	20	225.00
409338	IBC	43	82	2	32	40	10	135.00
409339	IBC	43	82	2	32	40	20	225.00
409340	IBC	41	88	2	32	63	10	135.00
409341	IBC	41	88	2	32	63	20	225.00
409342	IBC	49	86	2	40	6	5	97.00
409343	IBC	49	86	2	40	6	10	167.00
409344	IBC	49	92	2	40	40	5	97.00
409345	IBC	49	92	2	40	40	10	167.00
409346	IBC	47	103	2	40	63	5	97.00
409347	IBC	47	103	2	40	63	10	167.00
409348	IBC	61	96	2	50	6	5	115.00
409349	IBC	61	96	2	50	6	10	200.00
409350	IBC	61	107	2	50	40	5	115.00
409351	IBC	61	107	2	50	40	10	200.00
409352	IBC	59	113	2	50	63	5	115.00
409353	IBC	59	113	2	50	63	10	200.00
409354	IBC	77	116	2	65	6	5	146.00
409355	IBC	77	116	2	65	6	10	252.00
409356	IBC	77	127	2	65	40	5	146.00
409357	IBC	77	127	2	65	40	10	252.00
409358	IBC	73	138	2	65	63	5	146.00
409359	IBC	73	138	2	65	63	10	252.00
409360	IBC	89	132	2	80	6	5	171.00
409361	IBC	89	132	2	80	6	10	296.00
409362	IBC	89	142	2	80	40	5	171.00
409363	IBC	89	142	2	80	40	10	296.00
409364	IBC	86	148	2	80	63	5	171.00
409365	IBC	86	148	2	80	63	10	296.00
409366	IBC	115	152	2	100	6	5	194.00
409367	IBC	115	152	2	100	6	10	338.00
409368	IBC	115	162	2	100	16	5	194.00
409369	IBC	115	162	2	100	16	10	338.00
409370	IBC	115	168	2	100	40	5	207.00
409371	IBC	115	168	2	100	40	10	359.00
409372	IBC	110	174	2	100	63	5	207.00
409373	IBC	110	174	2	100	63	10	359.00
409374	IBC	141	182	2	125	6	5	236.00
409375	IBC	141	182	2	125	6	10	405.00
409376	IBC	141	192	2	125	16	5	236.00
409377	IBC	141	192	2	125	16	10	405.00
409378	IBC	141	194	2	125	40	5	236.00
409379	IBC	141	194	2	125	40	10	405.00
409380	IBC	135	210	2	125	63	5	236.00
409381	IBC	135	210	2	125	63	10	405.00
409382	IBC	169	207	2	150	6	5	139.00
409383	IBC	169	207	2	150	6	10	240.00
409384	IBC	169	218	2	150	16	5	139.00
409385	IBC	169	218	2	150	16	10	240.00
409386	IBC	169	224	2	150	40	5	281.00
409387	IBC	169	224	2	150	40	10	475.00
409388	IBC	163	247	2	150	63	5	281.00
409389	IBC	163	247	2	150	63	10	475.00
409390	IBC	220	262	2	200	6	5	388.00
409391	IBC	220	262	2	200	6	10	656.00
409392	IBC	220	273	2	200	16	5	388.00
409393	IBC	220	273	2	200	16	10	656.00
409394	IBC	220	284	2	200	25	5	420.00
409395	IBC	220	284	2	200	25	10	710.00
409396	IBC	220	290	2	200	40	5	404.00
409397	IBC	220	290	2	200	40	10	672.00
409398	IBC	210	309	2	200	63	5	404.00
409399	IBC	210	309	2	200	63	10	672.00
409400	TG	29	39	2	15		10	94.00
409401	TG	29	39	2	15		20	158.00
409402	TG	36	50	2	20		10	109.00
409403	TG	36	50	2	20		20	185.00
409404	TG	43	57	2	25		10	116.00
409405	TG	43	57	2	25		20	193.00
409406	TG	51	65	2	32		10	135.00
409407	TG	51	65	2	32		20	225.00
409408	TG	61	75	2	40		5	97.00
409409	TG	61	75	2	40		10	167.00
409410	TG	73	87	2	50		5	115.00
409411	TG	73	87	2	50		10	200.00
409412	TG	95	109	2	65		5	146.00
409413	TG	95	109	2	65		10	252.00
409414	TG	106	120	2	80		5	171.00
409415	TG	106	120	2	80		10	296.00
409416	TG	129	149	2	100		5	207.00
409417	TG	129	149	2	100		10	359.00
409418	TG	155	175	2	125		5	236.00
409419	TG	155	175	2	125		10	405.00
409420	TG	183	203	2	150		5	281.00
409421	TG	183	203	2	150		10	475.00
409422	TG	239	259	2	200		5	404.00
409423	TG	239	259	2	200		10	672.00