Company Advantages1. We are specialized in offering our clients an excellent array of piston seals.
2. Dms Seals Technology Co.,limited is familiar with the sales network in hydraulic piston seals area. DMS Seal manufacturer was established in 2008 and now has more than 10 years professional experience
3. pneumatic piston seals optimizes the functions of 
o-ring seal which also improves the efficiency. We have developed solutions of the sealing of special working condition
4. The attractive patterns and inexplicable designs of the piston seals has attracted various national as well as international clients to place bulk orders. High-end talents and advanced technology have enabled DMS o-ring seal quality to reach the industry's leading level
5. hydraulic piston seals sizes is the mainly trendy characteristics in hydraulic piston seals industry. DMS Seals takes the lead in grasping the development trend of the industry
Installation Recommendation
![undefined undefined]()
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 has gained its popularity all over the world.
2.  Dms Seals Technology Co.,limited's forward-looking technology helps its customers stay ahead of the industry.
3.  DMS Seal Manufacturer offers quality piston seals at the economical price. Get more info!