Company Advantages1. The newly launched products by Dms Seals Technology Co.,limited were all completed by the internationally renowned design company. DMS 
o-ring seal has advanced machines and equipment for its production
2. All relative certificates to guarantee quality will be provided by Dms Seals Technology Co.,limited. DMS Seals' production equipment and test equipment are on the leading level in the industry
3. We can support OEM and ODM. Compared with normal piston seals,pneumatic piston seals, hydraulic piston seals sizes possess the combination of excellent performance and long service life.
4. To reduce costs with high-efficiency work is the DMS's purpose. The special commercial value of hydraulic piston seals have made it top-selling products in hydraulic piston seals,hydraulic cylinder piston seals area.
Installation Recommendation
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Installation Sizes
| D H8 | d h9 | L+0.2 | H | 
| ˂96 | D-16.3 | 8 | 7.5 | 
| 96-190 | D-20 | 10 | 9.5 | 
| 191-380 | D-28 | 13 | 12.5 | 
| 381-1000 | D-36 | 20 | 19.5 | 
Application and properties
Apply to hydraulic piston sealing, Consisting of a seal ring, two L-shaped POM back-up rings and an acting force O-Ring. The back-up ring acts as a support and guide to ensure a tight sealing environment. High wear resistance, low friction, no crawling phenomenon, easy installation.
Sealing ring: filled PTFE
O-Ring: NBR / FKM
L-Ring: POM / PA
Working Conditions
| Working  Conditions | 
| Diameter Range | Pressure Range | Temperature Range | Speed | Medium | 
| 3-1600mm | 0-45MPa | -30℃+100℃ | 1 m/s | hydraulic oil, flame retardant liquid, water and others | 
Installation Dimensions
| D H8 | d h9 | H | L | e | Order No.  | 
| 4045
 50
 | 23.228.2
 33.2
 | 7.57.5
 7.5
 | 88
 8
 | 77
 7
 | DGDA40*23.2*7.5DGDA45*28.2*7.5
 DGDA50*33.2*7.5
 | 
| 5663
 65
 | 39.246.2
 48.2
 | 7.57.5
 7.5
 | 88
 8
 | 77
 7
 | DGDA56*39.2*7.5DGDA63*46.2*7.5
 DGDA65*48.2*7.5
 | 
| 7075
 80
 | 53.258.2
 63.2
 | 7.57.5
 7.5
 | 88
 8
 | 77
 7
 | DGDA70*53.2*7.5DGDA75*58.2*7.5
 DGDA80*63.2*7.5
 | 
| 8590
 95
 | 68.273.2
 78.2
 | 7.57.5
 7.5
 | 88
 8
 | 77
 7
 | DGDA85*68.2*7.5DGDA90*73.2*7.5
 DGDA95*78.2*7.5
 | 
| 100105
 110
 | 8085
 90
 | 9.59.5
 9.5
 | 1010
 10
 | 1010
 10
 | DGDA100*80*9.5DGDA105*85*9.5
 DGDA110*90*9.5
 | 
| 115120
 125
 | 95100
 105
 | 9.59.5
 9.5
 | 1010
 10
 | 1010
 10
 | DGDA115*95*9.5DGDA120*100*9.5
 DGDA125*105*9.5
 | 
| 130135
 140
 | 110115
 120
 | 9.59.5
 9.5
 | 1010
 10
 | 1010
 10
 | DGDA130*110*9.5DGDA135*115*9.5
 DGDA140*120*9.5
 | 
| 145150
 155
 | 125130
 135
 | 9.59.5
 9.5
 | 1010
 10
 | 1010
 10
 | DGDA145*125*9.5DGDA150*130*9.5
 DGDA155*135*9.5
 | 
| 160170
 180
 | 140150
 160
 | 9.59.5
 9.5
 | 1010
 10
 | 1010
 10
 | DGDA160*140*9.5DGDA170*150*9.5
 DGDA180*160*9.5
 | 
| 190200
 210
 | 170172
 182
 | 9.512.5
 12.5
 | 1013
 13
 | 1012
 12
 | DGDA190*170*9.5DGDA200*172*12.5
 DGDA210*182*12.5
 | 
| 220225
 235
 | 192197
 207
 | 12.512.5
 12.5
 | 1313
 13
 | 1212
 12
 | DGDA220*192*12.5DGDA225*197*12.5
 DGDA235*207*12.5
 | 
 Please Contact Us! DMS Seal Manufacturer's piston seals, pneumatic piston seals, hydraulic piston seals sizes Have The Features Of High Efficient And Low Priced. We Are Willing To Enter Into Business Relations With Your Firm On The Basis Of Equality And Mutual Benefit. 
2.  The friendly cooperation with hydraulic piston seals helps the growth of DMS Seal Manufacturer. Get more info!