Company Advantages1. Dms Seals Technology Co.,limited only choose the safe material for manufacturing piston seals. DMS Seals provides professional design and production of high-grade 
o-ring seals
2. DMS Seals' production equipment and test equipment are on the leading level in the industry. the specifications of hydraulic piston seals,pneumatic piston seals can be customized.
3. Dms Seals Technology Co.,limited's customized services are support by a team of hydraulic piston seals sizes specialists. Seal we produced has applications in a wide range of fields.
4. The DMS Seal Manufacturer o-ring seal includes a motorized hydraulic piston seals in lieu of hand-wheel version. We have developed solutions of the sealing of special working condition.
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
 | 
 DMS Seal Manufacturer is an integrated piston seals contractor integrating design, procurement and development. 
2.  Call Now! In Order To Meet The Market Demand, DMS Seal Manufacturer Will Continually Develop New hydraulic piston seals, pneumatic piston seals, hydraulic piston seals sizes. Please See More Information On Our Website. 
3.  DMS Seal Manufacturer aims to be an international o-ring seal exporter. Get price!