DanaCover Piston Seal VP

DanaCover is designed for static applications where o-ring or o-ring with back-up ring is insufficient.
DanaCover is machined out of high-quality hydrolysis resistant polyurethane so any dimension available.

Thanks to the production method we can square fine tolerances and by that optimal performance. Further the performance is reinforced trough the seal-design and low compression-set of the material.

Product details
Technical details
Extreme chemical resistance
Add Your Tooltip Text Here

Advantages:

  • Perfect for MRO, available in any dimension
  • Only one component is replacing o-ring and back-up ring.
  • Available for any groove dimension
  • No rick of o-ring being damaged in gap of back-up ring with cut.
  • No rick of placing the o-ring on the wrong side of the back-up ring
  • Double acting
  • Designed for high pressure
  • Good resistance against de-compressive explosion

APPLICATION EXAMPLES

  • Hydraulic equipment

Working conditions:

  • Pressure: 60 MPa
  • Temperature: –30 to +110 °C
  • Standard: Any o-ring and o-ring with back-up ring standard.
  • Diameter range: 10 to 1400 mm*
  • Action: Double-acting
  • Seals larger than 1000 mm, please contact us for design details
Media dependent temperature
Frequently used Material DanaFlon
Material
DanaFlon 85
Media
Temperature
Hydraulic oil HL, HLP
–30 to +110 °C
HFA liquids
+5 to +50 °C
HFB liquids
+5 to +50 °C
HFC liquids
–30 to +40 °C
Water
+5 to +50 °C
HETG (rape seed oil)
–30 to +60 °C
HEES (syntetic ester)
–30 to +80 °C
HEPG (glykol)
–30 to +50 °C
Mineral greese
–20 to +110 °C
Frequently used – DanaFlon material
Frequently used Material DanaFlon
Basis material
Polyurethane
DanaFlon
85
Proporty
Test method
Unit
Value
Hardness
DIN ISO 7619
Shore A
95
100% modulus
DIN 53504
MPa
>13
Tear strength
DIN ISO 34-1
N/mm2
100
Elongation at break
DIN 53504
%
>330
Tensile strength
DIN 53504
MPa
>50
Compression set 24hr at 70 °C
DIN ISO 825 20% compression
%
<27
Compression set 24hr at 70 °C
DIN ISO 825 20 % compression
%
<33
Density
DINEN ISO 1183-2
g/cm3
1.2
Abraision
DIN ISO 4649
mm3
17

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.

DanaCover Piston Seal VP

Technical details

Here you can see the technical details

Heading #3
øB
L
øA
G
R max.
Rod diameter
Grove height + 0.03 * L— 0
= øB + L x 2
Grove width + 0.2— 0
= L5
Part No. example
DanaCap for 30 mm bore

(For L smaller than 2.5 and/or G smaller than 3.0 please contact Dana-Seals)
(R max = L/5 for bigger radius please ask Dana-Seals).

Since the founding in 1992, Dana-Seals has strived to be the customer’s preferred go-to supplier for standard and advanced sealing solutions for hydraulic and pneumatic equipment

Head Office

Products

useful

Dana-Seals ESG-Report 2023

We Recycle Waste Materials

We support CARE Denmark

Ⓒ 2024 - All Rights Are Reserved

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.