Company Advantages1. We have developed solutions of the sealing of special working condition. The pneumatic piston seals that is reinforced with hydraulic piston seals sizes composite is unique and in the hydraulic piston seals machinery industry only to be found in DMS Seal Manufacturer.
2. 'Strictly abide by the contract and deliver promptly' is Dms Seals Technology Co.,limited's consistent principle. DMS Seals takes the lead in grasping the development trend of the industry
3. The high pressure seals have strong wear resistance to hard conditions. It is indicated that piston seals,hydraulic cylinder piston seals has many advantages such as hydraulic piston seals suppliers, and the practical application of rubber piston seals is promoted effectively.
4. hydraulic piston seals has attracted much attention as a pneumatic piston seals based on hydraulic piston seals sizes feature. Seal we produced has applications in a wide range of fields
5. DMS Seal manufacturer is a technology enterprise which specialized in the R&D and production of seals, DMS Seal Manufacturer Is Able To Do Customized Designs Of 
o-ring seal.
Installation Recommendation
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Installation Sizes
| Bore Diameter                         DN H9 | Groove Diameter | Groove Width | Radius | Radial Clearance                S max. | O-Ring Cross-Section | 
| Standard Application | Light Application | Heavy Duty Application | d1 h9 | L1+0.2 | R1 | 10MPa | 20MPa | 40MPa | d2 | 
| 8-14.9 | 15-39.9 | - | DN-4.9 | 2.2 | 0.4 | 0.3 | 0.20 | 0.15 | 1.78 | 
| 15-39.9 | 40-79.9 | - | DN-7.5 | 3.2 | 0.6 | 0.4 | 0.25 | 0.15 | 2.62 | 
| 40-79.9 | 80-132.9 | 15-39.9 | DN-11.0 | 4.2 | 1.0 | 0.4 | 0.25 | 0.20 | 3.53 | 
| 80-132.9 | 133-329.9 | 40-79.9 | DN-15.5 | 6.3 | 1.3 | 0.5 | 0.30 | 0.20 | 5.33 | 
| 133-329.9 | 330-699.9 | 80-132.9 | DN-21.0 | 8.1 | 1.8 | 0.6 | 0.35 | 0.25 | 7.00 | 
| 330-669.9 | 670-99.9 | 133-329.9 | DN-24.5 | 8.1 | 1.8 | 0.6 | 0.35 | 0.25 | 7.00 | 
| 670-999.9 | ≥1000 | 330-669.9 | DN-28.0 | 9.5 | 2.5 | 0.7 | 0.50 | 0.30 | 8.40 | 
| ≥1000 | ≥1000 | ≥1000 | DN-38.0 | 13.8 | 3.0 | 1.0 | 0.70 | 0.60 | 12.00 | 
Application and properties
Standard double acting seal. Suitable for reciprocating motion, allowing larger extrusion clearances, has wide application. Dynamic and static sealing property are excellent, be able to work in dusty condition. Low friction, simple groove, strong adaptability to work conditions.
Sealing ring: filled PTFE
O-ring: NBR / FKM
Working Conditions
| Working  Conditions | 
| Diameter Range | Pressure Range | Temperature Range | Speed | Medium | 
| 3-1600mm | 0-60MPa | -45℃ +200℃ | 15 m/s | hydraulic oil, flame retardant liquid, water and others | 
Installation Dimensions
| Bore Dia.  | Groove Dia.  | Groove Width  | Order No.  | O-Ring Dimensions  | 
| DN H9  | d1 h9  | L1+0.2  | 
| 810
 12
 | 3.15.1
 7.1
 | 2.22.2
 2.2
 | GSF8*3.1*2.2GSF10*5.1*2.2
 GSF12*7.1*2.2
 | 2.90*1.784.80*1.8
 6.70*1.8
 | 
| 1415
 15
 | 9.110.1
 7.5
 | 2.22.2
 3.2
 | GSF14*9.1*2.2GSF15*10.1*2.2
 GSF15*7.5*3.2
 | 8.75*1.87.59*2.62
 8.75*1.8
 | 
| 1616
 18
 | 11.18.5
 13.1
 | 2.23.2
 2.2
 | GSF16*11.1*2.2GSF16*8.5*3.2
 GSF18*13.1*2.2
 | 10.82*1.787.59*2.62
 12.42*1.78
 | 
| 1820
 20
 | 10.515.1
 12.5
 | 3.22.2
 3.2
 | GSF18*10.5*3.2GSF20*15.1*2.2
 GSF20*12.5*3.2
 | 9.19*2.6214.00*1.78
 12.37*2.62
 | 
| 2424
 25
 | 19.116.5
 17.5
 | 2.23.2
 3.2
 | GSF24*19.1*2.2GSF24*16.5*3.2
 GSF25*17.5*3.2
 | 18.77*1.7815.54*2.62
 17.12*2.62
 | 
| 2528
 28
 | 1420.5
 17
 | 4.23.2
 4.2
 | GSF25*14*4.2GSF28*20.5*3.2
 GSF28*17*4.2
 | 13.87*3.5320.29*2.62
 15.47*3.53
 | 
| 3030
 32
 | 22.519
 24.5
 | 3.24.2
 3.2
 | GSF30*22.5*3.2GSF30*19*4.2
 GSF32*24.5*3.2
 | 21.89*2.6226.70*1.78
 23.47*2.62
 | 
| 3235
 35
 | 2127.5
 24
 | 4.23.2
 4.2
 | GSF32*21*4.2GSF35*27.5*3.2
 GSF35*24*4.2
 | 20.22*3.5326.64*2.62
 23.40*3.53
 | 
| 3636
 38
 | 28.525
 30.5
 | 3.24.2
 3.2
 | GSF36*28.5*3.2GSF36*25*4.2
 GSF38*30.5*3.2
 | 28.24*2.6223.39*3.53
 29.82*2.62
 | 
| 3840
 40
 | 2732.5
 29
 | 4.23.2
 4.2
 | GSF38*27*4.2GSF40*32.5*3.2
 GSF40*29*4.2
 | 25.86*3.5331.42*2.62
 28.17*3.53
 | 
| 4545
 48
 | 37.534
 40.5
 | 3.24.2
 3.2
 | GSF45*37.5*3.2GSF45*34*4.2
 GSF48*40.5*3.2
 | 36.5*2.6232.92*3.53
 36.09*3.53
 | 
| 4850
 50
 | 3739
 34.5
 | 4.24.2
 6.3
 | GSF48*37*4.2GSF50*39*4.2
 GSF50*34.5*6.3
 | 36.09*3.5337.70*3.53
 32.69*5.33
 | 
| 5252
 55
 | 4136.5
 44
 | 4.26.3
 4.2
 | GSF52*41*4.2GSF52*36.5*6.3
 GSF55*44*4.2
 | 40.87*3.5335*5.33
 44.04*3.53
 | 
| 5556
 56
 | 39.545
 40.5
 | 6.34.2
 6.3
 | GSF55*39.5*6.3GSF56*45*4.2
 GSF56*40.5*6.3
 | 38*5.3344.04*3.53
 39*5.33
 | 
| 6060
 63
 | 4944.5
 52
 | 4.26.3
 4.2
 | GSF60*49*4.2GSF60*44.5*6.3
 GSF63*52*4.2
 | 47.22*3.5342.5*5.33
 50.39*3.53
 | 
| 6364
 64
 | 47.553
 48.5
 | 6.34.2
 6.3
 | GSF63*47.5*6.3GSF64*53*4.2
 GSF64*48.5*6.3
 | 46*5.3351.5*3.53
 46.99*5.33
 | 
| 6565
 70
 | 5449.5
 59
 | 4.26.3
 4.2
 | GSF65*54*4.2GSF65*49.5*6.3
 GSF70*59*4.2
 | 53.57*3.5348*5.33
 56.74*3.53
 | 
| 7075
 75
 | 54.564
 59.5
 | 6.34.2
 6.3
 | GSF70*54.5*6.3GSF75*64*4.2
 GSF75*59.5*6.3
 | 53.34*5.3363.09*3.53
 56.52*5.33
 | 
| 8080
 85
 | 6964.5
 74
 | 4.26.3
 4.2
 | GSF80*69*4.2GSF80*64.5*6.3
 GSF85*74*4.2
 | 66.27*3.5362.87*5.33
 72.62*3.53
 | 
| 8590
 90
 | 69.579
 74.5
 | 6.34.2
 6.3
 | GSF85*69.5*6.3GSF90*79*4.2
 GSF90*74.5*6.3
 | 69.22*5.3378.97*3.53
 72.39*5.33
 | 
| 9595
 100
 | 8479.5
 89
 | 4.26.3
 4.2
 | GSF95*84*4.2GSF95*79.5*6.3
 GSF100*89*4.2
 | 82.14*3.5378.74*5.33
 88.49*3.53
 | 
| 100105
 105
 | 84.594
 89.5
 | 6.34.2
 6.3
 | GSF100*84.5*6.3GSF105*94*4.2
 GSF105*89.5*6.3
 | 81.92*5.3391.67*3.53
 88.27*5.33
 | 
 In Dms Seals Technology Co.,limited, only finest-quality piston seals can be provided.
2.  Dms Seals Technology Co.,limited keeps concentrated on superior service for customers. Contact us!