Company Advantages1. DMS Seals' production equipment and test equipment are on the leading level in the industry. Presented products are enormously appreciated by DMS Seal Manufacturer customers for characteristics such as pneumatic piston seals and hydraulic piston seals sizes.
2. The R&D teams have the ability to design and develop seals for various of complicated working condition of sealing system. DMS Seal Manufacturer – a famous brand of piston seals,hydraulic piston seals, proudly designs and produces hydraulic piston seals,hydraulic cylinder piston seals.
3. These are 
o-ring seal and add high utility and appeal in hydraulic piston seals suppliers. Quality control of the seals is the basis for DMS Seals
4. High-end talents and advanced technology have enabled DMS o-ring seal quality to reach the industry's leading level. Processed from our sophisticated and advanced accessories, high-quality piston seals,rubber piston seals will be easily presented to customers.
5. We have developed solutions of the sealing of special working condition. hydraulic piston seals,pneumatic piston seals has been improved on the basis of the old types and such properties as hydraulic piston seals sizes have been realized.
Installation Recommendation
![undefined undefined]()
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 | 
| 3031.5
 32
 | 20.522
 22.5
 | 4.34.3
 4.3
 | 4.54.5
 4.5
 | SPG30*20.5*4.5SPG31.5*22*4.5
 SPG32*22.5*4.5
 | 
| 3535.5
 40
 | 25.526
 30
 | 4.34.3
 4.3
 | 4.54.5
 4.5
 | SPG35*25.5*4.5SPG35.5*26*4.5
 SPG40*30*4.5
 | 
| 4550
 55
 | 3540
 45
 | 4.34.3
 4.3
 | 4.54.5
 4.5
 | SPG45*35*4.5SPG50*40*4.5
 SPG55*45*4.5
 | 
| 5660
 63
 | 4650
 48
 | 4.34.3
 7.3
 | 4.54.5
 7.5
 | SPG56*46*4.5SPG60*50*4.5
 SPG63*48*7.5
 | 
| 6569
 70
 | 5054
 55
 | 7.37.3
 7.3
 | 7.57.5
 7.5
 | SPG65*50*7.5SPG69*54*7.5
 SPG70*55*7.5
 | 
| 7175
 80
 | 5660
 65
 | 7.37.3
 7.3
 | 7.57.5
 7.5
 | SPG71*56*7.5SPG75*60*7.5
 SPG80*65*7.5
 | 
| 8590
 95
 | 7075
 80
 | 7.37.3
 7.3
 | 7.57.5
 7.5
 | SPG85*70*7.5SPG90*75*7.5
 SPG95*80*7.5
 | 
| 100105
 108
 | 8590
 92
 | 7.37.3
 7.3
 | 7.57.5
 7.5
 | SPG100*85*7.5SPG105*90*7.5
 SPG108*92*7.5
 | 
| 110112
 120
 | 9496
 104
 | 7.37.3
 7.3
 | 7.57.5
 7.5
 | SPG110*94*7.5SPG112*96*7.5
 SPG120*104*7.5
 | 
| 125130
 135
 | 109114
 119
 | 7.37.3
 7.3
 | 7.57.5
 7.5
 | SPG125*109*7.5SPG130*114*7.5
 SPG135*119*7.5
 | 
| 140145
 150
 | 124129
 134
 | 7.37.3
 7.3
 | 7.57.5
 7.5
 | SPG140*124*7.5SPG145*129*7.5
 SPG150*134*7.5
 | 
| 155160
 170
 | 139144
 148
 | 7.37.3
 10.8
 | 7.57.5
 11
 | SPG155*139*7.5SPG160*144*7.5
 SPG170*148*11
 | 
 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!