Company Advantages1. DMS Seals' production equipment and test equipment are on the leading level in the industry. DMS Seal Manufacturer material for pneumatic piston seals is different from other companies' material and it's better.
2. DMS O Ring Manufacturers strictly follows the ISO9001 international quality certification system for production management. DMS Seal Manufacturer will promote innovation work, and strive to develop more, newer and better products.
3. Our experienced team pays much more attention to the crafts design of hydraulic piston seals sizes. To reduce costs with high-efficiency work is the DMS's purpose
4. piston seals is combined with high-strength, hydraulic piston seals material applications, as well as advanced technology. We can support OEM and ODM
5. DMS Seal manufacturer is a technology enterprise which specialized in the R&D and production of seals. hydraulic piston seals,hydraulic cylinder piston seals is applied to hydraulic piston seals suppliers for its advantages of rubber piston seals.
Installation Recommendation

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 |
30 31.5 32 | 20.5 22 22.5 | 4.3 4.3 4.3 | 4.5 4.5 4.5 | SPG30*20.5*4.5 SPG31.5*22*4.5 SPG32*22.5*4.5 |
35 35.5 40 | 25.5 26 30 | 4.3 4.3 4.3 | 4.5 4.5 4.5 | SPG35*25.5*4.5 SPG35.5*26*4.5 SPG40*30*4.5 |
45 50 55 | 35 40 45 | 4.3 4.3 4.3 | 4.5 4.5 4.5 | SPG45*35*4.5 SPG50*40*4.5 SPG55*45*4.5 |
56 60 63 | 46 50 48 | 4.3 4.3 7.3 | 4.5 4.5 7.5 | SPG56*46*4.5 SPG60*50*4.5 SPG63*48*7.5 |
65 69 70 | 50 54 55 | 7.3 7.3 7.3 | 7.5 7.5 7.5 | SPG65*50*7.5 SPG69*54*7.5 SPG70*55*7.5 |
71 75 80 | 56 60 65 | 7.3 7.3 7.3 | 7.5 7.5 7.5 | SPG71*56*7.5 SPG75*60*7.5 SPG80*65*7.5 |
85 90 95 | 70 75 80 | 7.3 7.3 7.3 | 7.5 7.5 7.5 | SPG85*70*7.5 SPG90*75*7.5 SPG95*80*7.5 |
100 105 108 | 85 90 92 | 7.3 7.3 7.3 | 7.5 7.5 7.5 | SPG100*85*7.5 SPG105*90*7.5 SPG108*92*7.5 |
110 112 120 | 94 96 104 | 7.3 7.3 7.3 | 7.5 7.5 7.5 | SPG110*94*7.5 SPG112*96*7.5 SPG120*104*7.5 |
125 130 135 | 109 114 119 | 7.3 7.3 7.3 | 7.5 7.5 7.5 | SPG125*109*7.5 SPG130*114*7.5 SPG135*119*7.5 |
140 145 150 | 124 129 134 | 7.3 7.3 7.3 | 7.5 7.5 7.5 | SPG140*124*7.5 SPG145*129*7.5 SPG150*134*7.5 |
155 160 170 | 139 144 148 | 7.3 7.3 10.8 | 7.5 7.5 11 | SPG155*139*7.5 SPG160*144*7.5 SPG170*148*11 |
Company Features1. Equipped with a complete set of quality control technology, piston seals can be guaranteed with good quality.
2. DMS Seal Manufacturer's devotion is to offer the most professional customer service which ranks top in hydraulic piston seals industry. Get more info!