Packing 1601  1689  1690  1699

Material		1601	1689	1690	1699
Fibre:		PTFE	PTFE	PTFE	PTFE
Fibretype:		Filament	Filament	Filament	Filament
Impregnation:		PTFE	PTFE	PTFE	PTFE
Lubricant:		-	Silicon oil	Paraffin oil	-
Density:	[g/m3]	1,7	1,7	1,7	1,7
	T (°C)	-200 to 280	-200 to 280	-200 to 280	-200 to 280
	pH	0 to 14	0 to 14	0 to 14	0 to 14
	P [bar]	-	10	10	-
	V [m/s]	-	12	12	-
	P [bar]	1000	150	150	1000
	V [m/s]	2	2	2	2
	P [bar]	500	150	150	500
	V [m/s]	2	2	2	1
	P [bar]	5	-	-	5

Packing 1636  1681  1682  1683

Material		1636	1681	1682	1683
Fibre:		PTFE	100% GFO®	graph+PTFE	graph+PTFE
Fibretype:		Filament	Filament	Filament	Filament
Impregnation:		Graphite	Inkorp.Graphite	Inkorp.Graphite	Inkorp.Graphite
Lubricant:		Paraffin oil	Silicon oil	-	Silicon oil
Density:	[g/m3]	1,5	1,55	1,5	1,6
	T (°C)	-200 to 280	-200 to 280	-200 to 280	-200 to 280
	pH	0 to 14	0 to 14	0 to 14	0 to 14
	P [bar]	20	50	-	25
	V [m/s]	20	25	-	20
	P [bar]	300	300	200	300
	V [m/s]	2	5	5	2
	P [bar]	300	400	250	300
	V [m/s]	2	2	5	2
	P [bar]	-	-	5	-

Packing 1670  1671  1675  1678

Material		1670	1671	1675	1678
Fibre:		CR/PTFE	CR/PP/PTFE	Rubber/PTFE	CR/PTFE
Fibretype:		Full/filament	Cell./stap./fil.	Tube/filament	Cell./filament
Impregnation:		PTFE	PTFE	PTFE	PTFE
Lubricant:		-	-	Paraffin oil	-
Density:	[g/m3]	1,54	0,6	0,6	1,2
	T (°C)	-40 to 150	0 to 150	0 to *	-40 to 150
	pH	1 to 13	1 to 13	* to *	1 to 13
	P [bar]	-	-	-	-
	V [m/s]	-	-	-	-
	P [bar]	-	-	-	-
	V [m/s]	-	-	-	-
	P [bar]	-	-	-	-
	V [m/s]	-	-	-	-
	P [bar]	10*	10*	10**	10

Packing 1710  1751  1761  1799

Material		1710	1751	1761	1799
Fibre:		Aramide	Aramide	Aramide	Aramide/glass
Fibretype:		Filament	Staple fibre	Filament	Filament/core
Impregnation:		Graphite	Graphite	Graphite/PTFE	Graphite
Lubricant:		Silicon oil	Paraffin oil	Paraffin oil	Paraffin oil
Density:	[g/m3]	1,35	1,1	1,25	1,4
	T (°C)	-100 to 280	-100 to 280	-100 to 280	-100 to 280
	pH	2 to 13	2 to 13	2 to 13	2 to 13
	P [bar]	25	20	50	20
	V [m/s]	30	20	30	15
	P [bar]	100	100	100	-
	V [m/s]	2	2	2	-
	P [bar]	100	100	100	100
	V [m/s]	2	2	2	2
	P [bar]	-	-	-	-

Packing 1721  1727

Material		1721	1727
Fibre:		Aramide	Aramide
Fibretype:		Staple fibre	Staple fibre
Impregnation:		PTFE	PTFE
Lubricant:		-	Paraffin oil
Density:	[g/m3]	1	1,1
	T (°C)	-100 to 280	-100 to 280
	pH	2 to 13	2 to 13
	P [bar]	-	25
	V [m/s]	-	25
	P [bar]	-	100
	V [m/s]	-	2
	P [bar]	300	100
	V [m/s]	-	2
	P [bar]	5	-

Packing 1778  1938

Material		1778	1938
Fibre:		Rubber/aramide	CR/Ramie
Fibretype:		Cellular/staple fibre	Cell./Long f.
Impregnation:		PTFE	PTFE
Lubricant:		-	Paraffin oil
Density:	[g/m3]	0,63	0,63
	T (°C)	-100 to 120	-50 to 100
	pH	2 to 13	1 to 13
	P [bar]	10	10
	V [m/s]	20	20
	P [bar]	-	2
	V [m/s]	-	2
	P [bar]	-	10
	V [m/s]	-	2
	P [bar]	1	1

Packing 1785  1786  1795  1796

Material		1785	1786	1795	1796
Fibre:		Aramide/PTFE	Aramide/PTFE	Aramide/graph+PTFE	Aramide/PTFE
Fibretype:		Filament/Filament	Staple fibre/Filament	Filament/Filament	Filament/Filament
Impregnation:		Graphite/PTFE	PTFE	Inkorp.Graphite	PTFE
Lubricant:		Paraffin oil	Paraffin oil	Silicon oil	Silicon oil
Density:	[g/m3]	1,5	1,4	1,5	1,5
	T (°C)	-100 to 280	-100 to 280	-100 to 280	-100 to 280
	pH	2 to 13	2 to 13	2 to 13	2 to 13
	P [bar]	20	20	50	20
	V [m/s]	20	20	30	20
	P [bar]	200	200	250	200
	V [m/s]	5	2	5	5
	P [bar]	200	200	250	200
	V [m/s]	2	2	2	2
	P [bar]	2	2	2	2

Packing 1797  1485

Material		1797	1485
Fibre:		Aramide/Graphite	Carbon/PTFE
Fibretype:		Filament/Filament	Filament/Filament
Impregnation:		PTFE	PTFE
Lubricant:		Silicon oil	Paraffin oil
Density:	[g/m3]	1,2	1,5
	T (°C)	-100 to 280	-100 to 280
	pH	2 to 13	2 to 14
	P [bar]	20	25
	V [m/s]	25	20
	P [bar]	100	-
	V [m/s]	5	-
	P [bar]	200	-
	V [m/s]	2	-
	P [bar]	2	2

Packing 1820  1832

Material		1820	1832
Fibre:		P84 (Polyimid)	PAN (Polyacrylnitril)
Fibretype:		Filament	Staple fibre
Impregnation:		PTFE	PTFE
Lubricant:		Silicon oil	Paraffin oil
Density:	[g/m3]	1,3	1,1
	T (°C)	-100 to 200*	-50 to 140
	pH	0 to 12	1 to 13
	P [bar]	25	25
	V [m/s]	20	25
	P [bar]	200	100
	V [m/s]	2	2
	P [bar]	250	100
	V [m/s]	2	2
	P [bar]	-	1

Packing 1931  1955

Material		1931	1955
Fibre:		Ramie	Ramie
Fibretype:		Long fibre	Long fibre
Impregnation:		PTFE	Graphite
Lubricant:		Paraffin oil	Grease
Density:	[g/m3]	1,2	1,2
	T (°C)	-50 to 140	-20 to 140
	pH	5 to 14	5 to 14
	P [bar]	25	20
	V [m/s]	20	15
	P [bar]	900	200
	V [m/s]	2	2
	P [bar]	200	200
	V [m/s]	2	2
	P [bar]	1	1

Packing 1941  1942  1943  1944/45

Material		1941	1942	1943	1944/45
Fibre:		Cotton	Cotton	Cotton	Hemp
Fibretype:		Long fibre	Long fibre	Long fibre	Long fibre
Impregnation:		Graphite	-	-	Paraffin/tallow
Lubricant:		Grease	Grease	Grease	Grease
Density:	[g/m3]	1,2	1,2	1,2	1,1
	T (°C)	-20 to 120	-20 to 120	-20 to 120	-20 to 120
	pH	5 to 13	5 to 13	5 to 13	5 to 13
	P [bar]	15	15	15	15
	V [m/s]	10	10	10	10
	P [bar]	100	100	100	50
	V [m/s]	2	2	2	2
	P [bar]	150	150	150	50
	V [m/s]	2	2	2	1
	P [bar]	-	-	-	-

Packing 1962

Material		1962
Fibre:		Cotton
Fibretype:		Long fibre
Impregnation:		-
Lubricant:		Glycerine
Density:	[g/m3]	1,3
	T (°C)	-20 to 120
	pH	-
	P [bar]	20
	V [m/s]	12
	P [bar]	100
	V [m/s]	2
	P [bar]	100
	V [m/s]	2
	P [bar]	-

Packing 6000  6001  6002

Material		6000	6001	6002
Fibre:		C-glass	E-glass	C-glass/E-glass
Fibretype:		Textured	Textured	Textured/Textured
Impregnation:		-	-	-
Lubricant:		-	-	-
Density:	[g/m3]	0,9	0,9	0,9
	T (°C)	-20 to 450	-20 to 650	-200 to 500
	pH	0 to 13	2 to 14	2 to 12
	P [bar]	-	-	-
	V [m/s]	-	-	-
	P [bar]	-	-	-
	V [m/s]	-	-	-
	P [bar]	-	-	-
	V [m/s]	-	-	-
	P [bar]	1	1	1

Packing 7015  7621

Material		7015	7621
Fibre:		PTFE	PTFE
Fibretype:		unsintered	unsintered
Impregnation:		-	Graphite
Lubricant:		-	-
Density:	[g/m3]	1,95	1,9
	T (°C)	-100 to 250	-100 to 250
	pH	0 to 14	0 to 14
	P [bar]	25	25
	V [m/s]	15	15
	P [bar]	-	-
	V [m/s]	-	-
	P [bar]	150	150
	V [m/s]	1	1
	P [bar]	50	50

GRAFOTHERM®
FOR PUMP SHAFTS AND FITTING SPINDELS
pump shafts fitting spindles
Vg: 40 m/s 3 m/s
P (bar) 40 bar 100 bar at 1,2 g/cm³
200 bar at 1,4 g/cm³
325 bar at 1,6 g/cm³
t (°C) - 200 up to +550°C in water
- 200 up to +2000°C in inert atmosphere
pH 0 up to 14
MEDIA:
Resistant against most media. Not applicable against strong oxidants e.g. concentrated nitric acid, sulphur acid
and perchloric acid and chrome (VI) solutions, alkaline salt e.g. calium chlorate, nitrate aggressive gases with bromine,
chlorine dioxide or sulphur trioxide.
DESIGN:
GRAFOTHERM® consists of pure graphite, which has been expanded in a special procedure. This material is densified
to foils without using any binders or fillers and cut in strips. These strips (as mentioned below) can be pressed
as sealing rings into glandbox rings on site. As a rule, we supply finished prepressed rings of Grafotherm strips.
CHARACTERISTIC FEATURES:
Ductility up to 50% of original thickness at a density of 1,0 g/cm³
Resiliance of approx. 10% of the original thickness
Continuous elasticity, resistant to thermal shocks, non-ageing, no hardening or softening, no warm- or cold flow
High heat conductivity, depending on density 100…400 W/K*m
Low friction value μ = 0,05 - 0,09; self lubricating
Resistant to radiation 5* 106 rad
Good sectional density, at shafts only very low leakage is necessary.
WS 9525 WS 9500 WS 9590
Purity ≥ 98 % C ≥ 99,8 % C ≥ 99,8 % C (+2% Inhibitor)
Chloride contents < 50 ppm < 20 ppm < 20 ppm
Iron contents < 300 ppm < 300 ppm < 300 ppm
WS 9525 is the standard quality, whereby WS 9500 ist applied in the case of high purity requirements. The quality
WS 9590 with corrosion inhibitor (barium molybdate) is recommended in the case of special requirements of the corrosion
safety, e.g. in the case of long storing periods, long idle running times at water- and vapour fittings of combinations of high-alloy spindle materials and low-alloy housing materials.
ADVANTAGES:
Wide range of application, thus easy stock-keeping
No disturbance due to a wrong selection of the gaskets
Easy mounting, short idle running times, less maintenance service: no resealing, only re mounting in the case of increased leakage
Long lifetime at low leakage
Protection of shafts and spindles
For fittings, decrease of the glandbox depth is possible
SHAPES AVAILABLE:
The following types of Grafotherm WS 9525, WS 9500 and WS 9590 with densities of 1.2 to 1.8 g/cm³ depending on
the respective application are available:
Packing-rings pressed on foil, continuos, with a cut or separated
Profile rings, e.g. with angular cut for covers
Profile rings with small cross sections as part of replacement for Elastomer-O-rings
MADE OF GRAFOTHERM WS 9500:
Strips with transverse ribs 0,38 mm thick, in 10, 15, 20 and 25 mm width, for selv rolling and pressing in the glandbox
Strips with transverse ribs, 1,0 mm thick with adhesive strip for the sealing of flanges, covers etc.
Special widths on request.

AK PRODUCTS FOR LOCKS, COVERS, FIRE DOORS AND LEVER STOP
AK products are elastic gaskets which are manually rolled or pressed with rubber-coated fabrics.
Rubber-coated fabrics out of glass, ceramics, aramide or cotton are processed. For higher demands and for a special reinforcement, layers and sheatings out of FA-material are added. If a higher elasticity of the gasket is required, AK-gaskets can be provided with a soft core e.g. out of elastomer plaited packing or rolled fibres. Thus the rigidness and elasticity of the gasket can
meet the requirements of a sealing area.
AK gaskets are applied as follows:
- as locking gaskets (e.g. handhole and manhole lockings),
- as cover gaskets (e.g. at dome and case covers)
- as door gaskets (e.g. at fire doors)
- at flap gaskets (e.g. blast furnace flaps or fire flaps)
As a rule, the following AK-gasket profiles are available:
Profile section
Narrow ware rectangular or round
Rings rectangular or round
Oval gaskets rectangular or round
Frames rectangular
For special applications, specifically adapted shapes are available, e.g. stretch band as fire door gasket, or wedge-shaped constructed and therefore slightly pre-tensioned rings for connectors (as rod or shaft seals).
The surface of the gaskets in the most cases is treated with graphite or PTFE dispersion as antiadhesive agent. The latter thus guarantees a better locking of the surface roughness of the fabric seals.
When installing narrow ware please consider that it has an angular cut (as a rule 45°) and a slight surplus length, that the joint of the gasket can be pressed against the lock. Thus leakage at the gasket joint is avoided.

LOCKING AND LEVER STOP GASKET AK 2602
Media:
water, vapour, hydrous acids, weak acids up to strong caustic, non aggressive vapours and gases.
Design:
The core is rolled out of glass fabrics, provided with an elastomer
coat on both sides. The gasket contains a gummed sheating out of
glass fabrics on one side. The exterior side is impregnated with PTFE-dispersion.
Notes:
AK 2602 is applied as static seal, e.g. for hand and manholes, covers, blast furnace flabs. The PTFE-coat increases the chemical resistance and avoids adhesion of caking of the seal. The elastic packing for the most part ist used in those cases where the application of a graphitized pakking is not allowed.

AK 2602 is an asbestos-free alternative to the well-proved AK 2221.
p (bar): 20 t (°C): -50 up to +280 pH: 1 up to 12
Shapes available:
Yard ware from 8 mm square / Rings from 60 x 80 mm diam. / Frames from 10mm square

FIRE DOOR PACKINGS AK 2603
Media: hot gases, e.g. flue gas, furnace atmospheres
Design: Glass plait of E-glass, graphitized on all sides
Notes: Due to ist composition, glass plait of E-glass remains
as flexible as normal C-glass up to higher temperatures.

The graphitizing prevents the adhesion of the packing.
Shapes available:
yard ware from 8 mm square
p (bar): 1 t (°C): -200 up to +650 pH: 2 up to 14

LOCKING GASKET AK 2650
Media: water, vapour, hydrous acids, weak acids up to
strong caustic, non aggressive vapours and gases.
Design: Rolled out of a stainless steel reinforced ceramic
fabric which is provided with a special elastomer coat
on both sides. The gasket ist graphitized on both sides.
Notes: AK 2650 has been developed e.g. for hand and man holes, covers, blast furnace flaps. The gasket is very smooth and elastic. It is well suited as an asbestos-free alternative to the proved AK-type 2039. Due to the graphitizing, adhesion of the gasket to the counter surface is nearly avoided.
Shapes available:
yard ware from 8 mm square / Rings from 60 x 80 mm diam./
Frames from 10 mm square
p (bar): 20 t (°C): -50 up to +450 pH: 3 up to 12

LOCKING GASKET AK 2657
Media: water, vapour, hydrous acids, weak acids up to strong caustic, non aggressive vapours and gases
Design: Rolled out of a glass fibre fabric which is rubber-coated on both sides, then pressed and vulcanized. The gasket ist graphitized on all sides.
Notes: The locking gasket AK 2657 ist well suited for the
sealing of hand- and manholes, covers, blast furnace flaps. Up to 250° C and 20 bar, the gasket is well suited as an asbestos-free alter native to the proved AK type 2039. In the case of higher temperatures, we recommend

the asbestos-free alternative AK2650 produced of ceramic fabrics.
Shapes available:
yarded goods from 8 mm square / Rings from 60 x 80 mm diam.
Frames from 10 mm square
p (bar): 20 t (°C): -50 up to +250 pH: 3 up to 12

LOCKING & LEVER STOP SEAL AK 2702 & 2757
Media: water, vapour, hydrous acids, weak acids up to strong caustic, also aggressive vapours and gases.
Design: Rolled out of an aramide fibre fabric which is elastomer-coated on both sides, then pressed and vulcanized. The gasket is produced with the following surfaces.
AK 2702: PTFE impregnated / AK 2757: graphitized
Notes: The gaskets AK 2702 and AK 2757 are well suited for the sealing of hand- and manholes, covers, blast furnace flaps. The outstanding resistance to wear of the aramide fibre enables application as lever stop gasket in different cases where media with abrasive elements exist. The surface treatment with PTFE for AK 2702 or with graphite for AK 2757 prevents an adhesion of the gasket.
The application of AK 2702 with PTFE impregnation is recommended when any
colouring of the medium should be excluded.
Shapes available: Yard ware: from 8 mm square / Rings: from 60 x 80 mm diam.
Frames: from 10 mm square
p (bar): 20 t (°C): -50 up to +250(water) / +300 (others) pH: 3 up to 12

LOCKING & LEVER STOP GASKETS AK 2747 & AK 2749
Media: water, vapour, hydrous acids, weak acids up to strong caustic, oils and hydrocarbons and aggressive vapours and gases
Design: rolled out of an aramide fibre fabric which ist rubber impregnated on both sides. During rolling procedure, a foil of FA material is added to the gasket AK 2747.
Both types are provided with a sheating of CENTELLEN® and are graphitized on
all sides.
Notes: AK 2747 and AK 2749 are very solid gaskets expecially suited for the application in lever stops. They can also be used in hand- and manholes, covers and locks. Theelastomer-coating guaranties high solidity and density which is reinforced by means of the Centellen®-foil sheating. Due to the Centellen®, AK 2747 is very solid and rigid and therefore well suited for applications with high contact pressure (> 1 N/mm²). For applications with a lower contact pressure (< 1 N/mm²), AK 2747 is recommended, an extended design of this type but without Centellen®-layer.
By means of graphitizing, an adhesion of the gaskets to the counterface is nearly prevented.
Shapes available: Yard ware from 8 mm square / rings from 80 x 100 mm diam.
frames from 10 mm square
p (bar): 30 (2749: 20) t (°C): -50 up to +250(water) / +300 (others) pH: 2 up to 13

HECKER SPECIAL SEAL RU - WS 2820
(based on CENTELLEN® 3820)
RU-rings inside-Ø d 1(mm) tolerances string- Ø d 2 tolerances
> 030 up to 0070 - 1,0 up to 03 ± 0,15
> 070 up to 0120 - 1,5 3 up to 04 ± 0,20
> 120 up to 0200 - 2,0 3 up to 05 ± 0,20
> 200 up to 0300 - 3,0 4 up to 06 ± 0,30
> 300 up to 0400 - 4,0 4 up to 07 ± 0,30
> 400 up to 0500 - 5,0 4 up to 07 ± 0,30
> 500 up to 0700 - 6,0 5 up to 08 ± 0,40
> 700 up to 1000 - 8,0 6 up to 10 ± 0,40
Round strings
string- Ø(mm) tolerances
03 ± 0,15 (length: 10m)
04 ± 0,20 (length: 10m)
05 ± 0,30 (length: 10m)
06 ± 0,30 (length: 10m)
08 ± 0,40 (length: 2,5m)
10 ± 0,40 (length: 2,5m)
Construction and material:
Round sealing rings are wrapped from thin level sealing material
and are stuck together. The density of the material amounts to 1,3 g/cm³.
Application:
Round sealing rings are suited to the static sealing of lids, cases, containers, etc.. They also serve as a substitute with elastomer-O-rings at temperatures above 200°C. Hence, their installation ist possible only in grooves open forehead-sided or plan-sided.
Application approximate values:
Pressure: up to 250 bar in triangular grooves/ up to 5 bar in rectangle grooves
temp.range: -200 up to 250°C in water and steam/ up to 350°C in other media
PH-range: 2 up to 13
Media: applicable in water, oils, petrol, benzene, solvents not applicable in aceton, nitroglycerine, concentrated solvents and acids.
31
Rectangle groove:
With this often used groove form the pressure loading capacity is approximately
5bar. Because this grooves are not standard, an individual adaptation
of the crosse section of the ring is necessary. Please call, hence, available
groove dimensions.
Triangle groove:
Standard groove form for round sealing rings. High pressure up to approximateley 250 bar can be sealed by the high pressure in coonection with thespecial groove geometry (wedge effect).
Overcrowding triangle groove:
Specially groove form for pressure more than 250 bar. It must be considered
constructively that by the overcrowding the benefit ist not possible for
a strength-logical connection of the surrounding metal parts.