Company Advantages1. High-end talents and advanced technology have enabled DMS 
o-ring seal quality to reach the industry's leading level. Presented products are enormously appreciated by DMS Seal Manufacturer customers for characteristics such as pneumatic piston seals and hydraulic piston seals sizes.
2. Quality control of the seals is the basis for DMS Seals. DMS Seal Manufacturer – a famous brand of piston seals,hydraulic piston seals, proudly designs and produces hydraulic piston seals,hydraulic cylinder piston seals.
3. You are well aware that this type of o-ring seal is hydraulic piston seals suppliers. DMS o-ring seal has advanced machines and equipment for its production
Installation Recommendation
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Application and properties
Standard double acting sealing, a wide range of applications. Friction resistance is very low, no crawling phenomenon, strong wear resistance, and saving installation space.
Sealing ring: filled PTFE
O-Ring: NBR / FKM
Working Conditions
| Working  Conditions | 
| Diameter Range | Pressure Range | Temperature Range | Speed | Medium | 
| 3-1600mm | 0-35MPa | -30℃+200℃ | 1.5 m/s | hydraulic oil, flame retardant liquid, water and others. | 
Installation Dimensions
| Nominal Size  of Packing, and Housing dimensions | L +0.2 | Order No. | 
| D | d | H | 
| 2025
 30
 | 1419
 21.5
 | 33
 3.8
 | 3.23.2
 4
 | DPO20*14*3.2DPO25*19*3.2
 DPO30*21.5*4
 | 
| 31.532
 35
 | 2323.5
 26.5
 | 3.83.8
 3.8
 | 44
 4
 | DPO31.5*23*4DPO32*23.5*4
 DPO35*26.5*4
 | 
| 35.540
 45
 | 2731.5
 36.5
 | 3.83.8
 3.8
 | 44
 4
 | DPO35.5*27*4DPO40*31.5*4
 DPO45*36.5*4
 | 
| 5053
 55
 | 41.544.5
 46.5
 | 3.83.8
 3.8
 | 44
 4
 | DPO50*41.5*4DPO53*44.5*4
 DPO55*46.5*4
 | 
| 5660
 63
 | 47.551.5
 49
 | 3.83.8
 6.3
 | 44
 6.5
 | DPO56*47.5*4DPO60*51.5*4
 DPO63*49*6.5
 | 
| 6570
 71
 | 5156
 57
 | 6.36.3
 6.3
 | 6.56.5
 6.5
 | DPO65*51*6.5DPO70*56*6.5
 DPO71*57*6.5
 | 
| 7580
 85
 | 6166
 71
 | 6.36.3
 6.3
 | 6.56.5
 6.5
 | DPO75*61*6.5DPO80*66*6.5
 DPO85*71*6.5
 | 
| 9095
 100
 | 7681
 86
 | 6.36.3
 6.3
 | 6.56.5
 6.5
 | DPO90*76*6.5DPO95*81*6.5
 DPO100*86*6.5
 | 
| 105110
 112
 | 9196
 98
 | 6.36.3
 6.3
 | 6.56.5
 6.5
 | DPO105*91*6.5DPO110*96*6.5
 DPO112*98*6.5
 | 
| 115120
 125
 | 101106
 111
 | 6.36.3
 6.3
 | 6.56.5
 6.5
 | DPO115*101*6.5DPO120*106*6.5
 DPO125*111*6.5
 | 
| 130135
 140
 | 116121
 126
 | 6.36.3
 6.3
 | 6.56.5
 6.5
 | DPO130*116*6.5DPO135*121*6.5
 DPO140*126*6.5
 | 
| 150160
 170
 | 136146
 150
 | 6.36.3
 9.8
 | 6.56.5
 10.0
 | DPO150*136*6.5DPO160*146*6.5
 DPO170*150*10
 | 
| 180190
 200
 | 160170
 180
 | 9.89.8
 9.8
 | 10.010.0
 10.0
 | DPO180*160*10DPO190*170*10
 DPO200*180*10
 | 
 At present, Dms Seals Technology Co.,limited has advanced production lines and various testing equipment for piston seals.
2.  Ensuring a harmonious environment between employees can provide the best hydraulic piston seals. Welcome to visit our factory!