DanaScraper 1 W472

DanaScraper 1 is the double wiper activated by two O-rings. Using two O-rings optimises the activation load on the profile ring. The wiper has a long service life, low friction and excellent wiping effect and can withstand a moderate pressure from behind.

Extreme chemical resistance
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Advantages:

Application Examples

Working conditions:

Frequently used - DanaFlon Material
Wipers   –200 to +260 °C
PTFE
 –60 to +80 °C
60 Shore D
Polyurethane
 –60 to +80 °C
Short duration: 120 °C
UHMWPE
DanaFlon 24 84 91
Filler Bronze & Additives Virgin Virgin
Colour Brownish  Red White
Extreme form stability and extrusion resistance yes (yes) (yes)
Lubricating media yes yes yes
Extreme wear resistance  (yes) (yes) yes
Wide range of media no yes yes
Non-lubricating media no yes yes
Food applications no no yes
Conforms to food regulation  no no FDA, EU 10/2011
Alternative solution - DanaFlon Material
Wipers   –200 to +260 °C
PTFE
DanaFlon 32
  Carbon & Graphite
Colour and filler Dark Black
Extreme form stability and extrusion resistance (yes)
Lubricating media yes
Extreme wear resistance  (yes)
Wide range of media yes
Non-lubricating media yes
Food applications no
Conforms to food regulation  no

O-rings may limit the temperature range and need to be compatible with the media.

The performance of the seal will always depend on the overall picture of the working conditions.

Verification can only be done by testing the seal in the actual working conditions.

DanaScraper 1 W472

Technical details

Here you can see the technical details

Series Rod
øB f8/h8
øA H9 G + 0,2- 0 RMax øD1 H11 m min.
W47 20 20,0 - 29,9 øB + 7,6 4,2 0,4 øB + 1,0 4,0
21 30,0 - 39,9 øB + 7,6 4,2 0,4 øB + 1,0 4,0
22 40,0 - 69,9 øB + 8,8 6,3 1,2 øB + 1,5 4,0
23 70,0 - 110,0 øB + 12,2 8,1 2,0 øB + 2,0 4,0
24 110,1 - 139,9 øB + 12,2 8,1 2,0 øB + 2,0 4,0
25 140,0 - 200,0 øB + 16,0 11,5 2,0 øB + 2,0 4,0
26 200,1 - 250,0 øB + 16,0 11,5 2,0 øB + 2,0 4,0
27 250,1 - 399,9 øB + 16,0 11,5 2,0 øB + 2,0 4,0
28 400,0 - 649,9 øB + 24,0 15,5 2,0 øB + 2,5 4,0
29 650,0 - 920,0 øB + 27,3 18,0 2,0 øB + 2,5 4,0
Part No. example
DanaScraper for 90 mm rod

Delivery times

For special requests, please complete our Request form or call us on +45 4922 4400.

Engineering request form

Please fill in the form below and we would appreciate it if you attach eventual drawings of hardware or seals to clarify technical demands.