Company Advantages1. DMS Seals takes the lead in grasping the development trend of the industry. DMS Seal Manufacturer factory has established itself as a leading manufacturer, trader, and manufacture of pneumatic piston seals in the market.
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 is full of vitality, energy and warrior spirit.
3. Professional testing allows piston seals to be optimal. Our products mainly include 
rod seals, piston seals, scraper seals, rotary seals, rubber seal products and spring seals
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 | 
| 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
 | 
 Dms Seals Technology Co.,limited is a leading piston seals enterprise which has superiority in innovation.
2.  Dms Seals Technology Co.,limited has a strong and complete production capacity.
3.  We are committed to delivering operational excellence and the lowest cash cost of production.