Heavy DanaGlide P320
Heavy DanaGlide is a heavy version of DanaGlide. Heavy DanaGlide is a piston seal designed for double-acting applications in heavy industry like hydraulic presses and steel mills. In dynamic applications, the seal rides on a lubricating media film, which extends the service life. The media film moves from the low-pressure side to the high-pressure side.
Especially when Heavy DanaStep is made in our new materials based on modified PTFE, DanaFlon 20, DanaFlon 45 and DanaFlon 51 an optimal form stability and extrusion resistance is achieved. To ensure that the profile ring is pressure activated even in conditions with rapid pressure changes, the seal is delivered with notches.
Advantages:
- High formstability against extrusion Extrusion resistance
- Abrasion resistance
- Low friction
- Small groove
- No stick-slip
- Suitable for a wide variety of media
Application Examples
- Steel mills & Presses
Working conditions:
- Pressure: 80 Mpa
- Temperature: NBR O-ring: -30 to +100 FPM O-ring: -10 to +200
- Application: High pressure, Intensive movement
- Speed: 15 m/s
- Diameter range: 100 to *3000 mm
- Action: Double-acting
- Seals larger than 2000 mm please contact us for design details
Frequently used Material DanaFlon | |||||
|---|---|---|---|---|---|
Operating temperature range | –200 to +260 °C | –200 to +260 °C | –200 to +260 °C | –200 to +260 °C | –200 to +260 °C |
Basis material | PTFE | Modified PTFE | Modified PTFE | PTFE | Modified PTFE |
DanaFlon | 24 | 25* | 45 | 55 | 51* |
Filler | Bronze & Additives | Bronze & Additives | Carbon fibre | Glass & MoS2 | Glass & MoS2 |
Colour | Brownish | Brownish | Dark Gray | Light Gray | Light Gray |
Extreme form stability and extrusion resistance | Yes | Yes | Yes | (Yes) | Yes |
Lubricating media | Yes | Yes | Yes | Yes | Yes |
Extreme wear resistance | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
Wide range of media | No | No | Yes | Yes | Yes |
Non-lubricating media | No | No | Yes | Yes | Yes |
Food applications | No | No | No | No | No |
Conforms to food regulation | No | No | No | No | No |
*DF25 is similar to the well known DF24, but has even higher formstability against extrusion.
*DF51 is similar to the well known DF55, but has even higher formstability against extrusion.
The Rubber-Profile-Rings may limit the temperature range and need to be compatible with the media.
The performance of the seal will always depend on the total picture of working conditions.
Verifying the performance of the seal can only be done by test at the actual working conditions.
Heavy DanaGlide P320
Technical details
Here you can see the technical details
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Ra max (0.2 μm)
-
Rz max (1.25 μm)
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Rp max (0.63 μm)
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Tp = 50 - 70% at depth of p= 0.25 Rz
Heading #3 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Serie | Bore | øB h8 | G + 0,2– 0 | R | C | Max radial Clearance | ||||
øA H8 | 16 MPa | 26 MPa | 32 MPa | 40 MPa | ||||||
P32 | 02 | 100 – 150 | øA – 20 | 10,0 | 0,4 | 7,5 | 0,60 | 0,50 | 0,40 | 0,40 |
03 | 150 – 250 | øA – 25 | 12,5 | 0,4 | 10 | 0,75 | 0,65 | 0,55 | 0,50 | |
04 | 240 – 490 | øA – 30 | 15,0 | 0,8 | 12 | 0,75 | 0,65 | 0,55 | 0,50 | |
05 | 450 – 760 | øA – 35 | 17,5 | 1,2 | 12 | 0,75 | 0,65 | 0,55 | 0,50 | |
06 | 770 – 2000 | øA – 40 | 20,0 | 1,2 | 15 | 0,80 | 0,70 | 0,60 | 0,55 | |
Max radial clearance is based on DanaFlon 24 and 100 °C . For other hi-filled DanaFlon compounds please ask Dana-Seals A/S.
Clearance: At Pressure > 40 MPa use diameter tolerance H7/f7 (Bore/Piston)
7 NBR
8 FPM
Delivery times
For special requests, please complete our Request form or call us on +45 4922 4400.
