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Compactafdichting type 0820

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Type 0820 is een tweedelige dubbelwerkende zuigerafdichting die bestaat uit een speciaal gemengde PTFE-profielring en een o-ring als bekrachtigend element.

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Spuitgietmachines, heftrucks, hefplatforms, kranen, landbouwmachines, hulpstukken in hydraulische en pneumatische systemen.

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OPERATING CONDITIONS
MEDIA	Mineral oils (DIN 51524)	HFA and HFB	HFC
TEMPERATURE	from -30°C till +105°C	from +5°C till +60°C	from -30°C till +60°C
PRESSURE	max. 400 Bar	max. 400 Bar	max. 400 Bar
SPEED	max. 5.0 m/s	max. 5.0 m/s	max. 5.0 m/s
Note: The above data are maximum values and cannot be used at the same time.

SURFACE ROUGHNESS	Ra	Rmax
Sliding Surface	max. 0.2 µm	2.0 µm
Groove Base	max. 1.6 µm	6.3 µm
Groove Flanks	max. 3.2 µm	15 µm
Note: It is recommended to have 50% to 90% of the working surface material contact area value.

PERMISSIBLE SEALING GAP
B (mm)	Smax (mm)
x	150 Bar	250 Bar	400 Bar
2.2	0.25	0.20	0.15
3.2	0.4	0.25	0.15
4.2	0.4	0.25	0.20
6.3	0.5	0.30	0.20
8.1	0.6	0.35	0.25
9.5	0.7	0.50	0.30
Note: The largest sealing gap value occurring on the non-pressurized side of the seal does have a vital importance for the function of the seal and in this respect it is quite important to use the S value lower than the above indicated numbers.

OPERATING CONDITIONS
MEDIA	Mineral oils (DIN 51524)	HFA and HFB	HFC
TEMPERATURE	from -30°C till +105°C	from +5°C till +60°C	from -30°C till +60°C
PRESSURE	max. 400 Bar	max. 400 Bar	max. 400 Bar
SPEED	max. 5.0 m/s	max. 5.0 m/s	max. 5.0 m/s
Note: The above data are maximum values and cannot be used at the same time.

SURFACE ROUGHNESS	Ra	Rmax
Sliding Surface	max. 0.2 µm	2.0 µm
Groove Base	max. 1.6 µm	6.3 µm
Groove Flanks	max. 3.2 µm	15 µm
Note: It is recommended to have 50% to 90% of the working surface material contact area value.

PERMISSIBLE SEALING GAP
B (mm)	Smax (mm)
x	150 Bar	250 Bar	400 Bar
2.2	0.25	0.20	0.15
3.2	0.4	0.25	0.15
4.2	0.4	0.25	0.20
6.3	0.5	0.30	0.20
8.1	0.6	0.35	0.25
9.5	0.7	0.50	0.30
Note: The largest sealing gap value occurring on the non-pressurized side of the seal does have a vital importance for the function of the seal and in this respect it is quite important to use the S value lower than the above indicated numbers.

OPERATING CONDITIONS
MEDIA	Mineral oils (DIN 51524)	HFA and HFB	HFC
TEMPERATURE	from -30°C till +105°C	from +5°C till +60°C	from -30°C till +60°C
PRESSURE	max. 400 Bar	max. 400 Bar	max. 400 Bar
SPEED	max. 5.0 m/s	max. 5.0 m/s	max. 5.0 m/s
Note: The above data are maximum values and cannot be used at the same time.

SURFACE ROUGHNESS	Ra	Rmax
Sliding Surface	max. 0.2 µm	2.0 µm
Groove Base	max. 1.6 µm	6.3 µm
Groove Flanks	max. 3.2 µm	15 µm
Note: It is recommended to have 50% to 90% of the working surface material contact area value.

PERMISSIBLE SEALING GAP
B (mm)	Smax (mm)
x	150 Bar	250 Bar	400 Bar
2.2	0.25	0.20	0.15
3.2	0.4	0.25	0.15
4.2	0.4	0.25	0.20
6.3	0.5	0.30	0.20
8.1	0.6	0.35	0.25
9.5	0.7	0.50	0.30
Note: The largest sealing gap value occurring on the non-pressurized side of the seal does have a vital importance for the function of the seal and in this respect it is quite important to use the S value lower than the above indicated numbers.

OPERATING CONDITIONS
MEDIA	Mineral oils (DIN 51524)	HFA and HFB	HFC
TEMPERATURE	from -30°C till +105°C	from +5°C till +60°C	from -30°C till +60°C
PRESSURE	max. 400 Bar	max. 400 Bar	max. 400 Bar
SPEED	max. 5.0 m/s	max. 5.0 m/s	max. 5.0 m/s
Note: The above data are maximum values and cannot be used at the same time.

SURFACE ROUGHNESS	Ra	Rmax
Sliding Surface	max. 0.2 µm	2.0 µm
Groove Base	max. 1.6 µm	6.3 µm
Groove Flanks	max. 3.2 µm	15 µm
Note: It is recommended to have 50% to 90% of the working surface material contact area value.

PERMISSIBLE SEALING GAP
B (mm)	Smax (mm)
x	150 Bar	250 Bar	400 Bar
2.2	0.25	0.20	0.15
3.2	0.4	0.25	0.15
4.2	0.4	0.25	0.20
6.3	0.5	0.30	0.20
8.1	0.6	0.35	0.25
9.5	0.7	0.50	0.30
Note: The largest sealing gap value occurring on the non-pressurized side of the seal does have a vital importance for the function of the seal and in this respect it is quite important to use the S value lower than the above indicated numbers.

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