Seals


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PTFE

DPT1 - PTFE Carbon Hydraulic Scraper Seal with NBR/FKM O-Ring

DPT1
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  1. Application and properties

Suitable for agricultural machinery, injection molding machines, forklifts, cranes, etc. It consists of a sealing ring and 2 O-rings, used to improve overall sealing. Low friction, no stick-slip phenomenon, with good adjustment and positioning ability, high reliability, and can effectively erase the remaining oil film adhering to the surface of the piston rod from the inside.
   Wide operating temperature range, depending on O-ring material
Can be used for special working conditions such as high speed, extremely low speed, micro-stroke, etc.
 

2. Standard material

Sealing ring: filled PTFE
O-Ring: NBR / FKM

3. Working conditions

Working conditions

Diameter

Range

Temperature

Range°C

Speed

Medium

20～2000mm

-30～100(NBR)

-20～160(FKM)

5m/s

Hydraulic oil,

flame retardant liquid, water,

Scraper Seals

4. Related Dimensions:

R1=0.2～0.5, R2=0.1～0.2; R3=0.3～2; C=(0.7～1.0)L; The specific values are selected according to the section size of the seal. The remaining values are listed in the table below:

Rod DiameterGrooveGrooveDiameter槽边距O-Ring
 DiameterWidthCross-Section
dDLD1L1d1
20～39.9d+7.64.2d+1.08.21.78
40～69.9d+8.86.3d+1.510.32.62
70～139.9d+12.28.1d+2.012.13.53
140～399.9d+16.011.5d+2.015.55.33
400～649.9d+24.015.5d+2.519.58.4
650～999.9d+27.318d+2.52312
 

5. Marking method:

Mark with the dimension of installation groove as below

For example:：DPTl-100×112×8.1

6. Installation Dimensions

Rod DiaGrooveSealing WidthStep WidthPart No.Rod DiaGrooveSealing WidthStep WidthPart No.
DiaDia
dDHLdDHL
2027.644.2DPT1-02002202361111.5DPT1-2200
2532.644.2DPT1-02502302461111.5DPT1-2300
2835.644.2DPT1-02802402561111.5DPT1-2400
3037.644.2DPT1-03002502661111.5DPT1-2500
3239.644.2DPT1-03202602761111.5DPT1-2600
3542.644.2DPT1-03502652811111.5DPT1-2650
3643.644.2DPT1-03602702861111.5DPT1-2700
4048.866.3DPT1-04002802961111.5DPT1-2800
4250.866.3DPT1-04202903061111.5DPT1-2900
4553.866.3DPT1-04503003161111.5DPT1-3000
5058.866.3DPT1-05003303461111.5DPT1-3300
5563.866.3DPT1-05503503661111.5DPT1-3500
5664.866.3DPT1-05603703861111.5DPT1-3700
6068.866.3DPT1-06003803961111.5DPT1-3800
6371.866.3DPT1-063040042414.815.5DPT1-4000
6573.866.3DPT1-065042044414.815.5DPT1-4200
7082.27.78.1DPT1-070045047414.815.5DPT1-4500
7587.27.78.1DPT1-075047049414.815.5DPT1-4700
8092.27.78.1DPT1-080048050414.815.5DPT1-4800
8597.27.78.1DPT1-085050052414.815.5DPT1-5000
90102.27.78.1DPT1-090052054414.815.5DPT1-5200
95107.27.78.1DPT1-095055057414.815.5DPT1-5500
100112.27.78.1DPT1-100058560914.815.5DPT1-5850
105117.27.78.1DPT1-105060062414.815.5DPT1-6000
110122.27.78.1DPT1-110062064414.815.5DPT1-6200
115127.27.78.1DPT1-115063565914.815.5DPT1-6350
120132.27.78.1DPT1-1200675702.317.218DPT1-6750
125137.27.78.1DPT1-1250690717.317.218DPT1-6900
130142.27.78.1DPT1-1300700727.317.218DPT1-7000
135147.27.78.1DPT1-1350710737.317.218DPT1-7100
1401561111.5DPT1-1400750777.317.218DPT1-7500
1451611111.5DPT1-1450780807.317.218DPT1-7800
1501661111.5DPT1-1500800827.317.218DPT1-8000
1551711111.5DPT1-1550810837.317.218DPT1-8100
1601761111.5DPT1-1600820847.317.218DPT1-8200
1651811111.5DPT1-1650830857.317.218DPT1-8300
1701861111.5DPT1-1700850877.317.218DPT1-8500
1751911111.5DPT1-1750870897.317.218DPT1-8700
1801961111.5DPT1-1800880907.317.218DPT1-8800
1902061111.5DPT1-1900890917.317.218DPT1-8900
2002161111.5DPT1-2000900927.317.218DPT1-9000
2102261111.5DPT1-2100910937.317.218DPT1-9100