Company Advantages1. Dms Seals Technology Co.,limited features its special design for pneumatic seals . We can support OEM and ODM
2. Dms Seals Technology Co.,limited establishes a mutually beneficial cooperation relationship based on the principle of good faith. Quality control of the seals is the basis for DMS Seals
3. pneumatic seals enhance the efficiency with such properties as . DMS Seal manufacturer provides good quality and competitive price hydraulic seals
4. Compared with general products, pneumatic seals is featured with , so it is more competitive in commercial market. DMS Seals manufacturer owns a team of professional R&D group and skilled technicians
5. Because pneumatic seals is really economical in price, it will have a bright future. DMS
o-ring seal has advanced machines and equipment for its production
1. Installation Recommendation
![DMS Seal Manufacturer-Hydraulic Rod Seal | High Pressure Seals | Rubber Seal Design]()
2. Installation Sizes
Rod 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 |
3-7.9 | 8-18.9 | - | dN+4.9 | 2.2 | 0.4 | 0.3 | 0.20 | 0.15 | 1.78 |
8-18.9 | 19-37.9 | - | dN+7.3 | 3.2 | 0.6 | 0.4 | 0.25 | 0.15 | 2.62 |
19-37.9 | 38-199.9 | 8-18.9 | dN+10.7 | 4.2 | 1.0 | 0.4 | 0.25 | 0.20 | 3.53 |
38-199.9 | 200-255.9 | 19-37.9 | dN+15.1 | 6.3 | 1.3 | 0.5 | 0.30 | 0.20 | 5.33 |
200-225.9 | 256-649.9 | 38-199.9 | dN+20.5 | 8.1 | 1.8 | 0.6 | 0.35 | 0.25 | 7.00 |
256-649.9 | 650-999.9 | 200-255.9 | dN+24.0 | 8.1 | 1.8 | 0.6 | 0.35 | 0.25 | 7.00 |
650-999.9 | ≥1000.0 | 256-649.9 | dN+27.3 | 9.5 | 2.5 | 0.7 | 0.50 | 0.30 | 8.40 |
≥1000.0 | - | 650-999.9 | dN+38.0 | 13.8 | 3.0 | 1.0 | 0.70 | 0.60 | 12.00 |
3. Application and properties
Applicable to high and low speed reciprocating motion environment, a wide range of fluids and high temperature condition. Suitable for larger gap of piston rod. Low friction, simple groove, be able to work in themedium with oil spots.
Meet the standard of GB/T 15242.3.
4. Standard materials
Sealing ring: filled PTFE
O-Ring: NBR / FKM
5. 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, gas |
6. Installation Dimensions
Rod Dia. | Groove Dia. | Groove Width | Order No. | O-Ring Dimensions |
DN h9 | D1 H9 | L1+0.2 |
20 20 22 | 27.3 30.7 29.3 | 3.2 4.2 3.2 | GSI20*27.3*3.2 GSI20*30.7*4.2 GSI22*29.3*3.2 | 21.89*2.62 25.0*3.53 25.07*2.62 |
22 24 25 | 32.7 31.3 32.3 | 4.2 3.2 3.2 | GSI22*32.7*4.2 GSI24*31.3*3.2 GSI25*32.3*3.2 | 26.57*3.53 26.64*2.62 28.24*2.62 |
25 26 28 | 35.7 36.7 35.3 | 4.2 4.2 3.2 | GSI25*35.7*4.2 GSI26*36.7*4.2 GSI28*35.3*3.2 | 29.74*3.53 29.74*3.53 29.82*2.62 |
28 30 30 | 38.7 37.3 40.7 | 4.2 3.2 4.2 | GSI28*38.7*4.2 GSI30*37.3*3.2 GSI30*40.7*4.2 | 32.92*3.53 32.99*2.62 34.52*3.53 |
32 32 35 | 39.3 42.7 42.3 | 3.2 4.2 3.2 | GSI32*39.3*3.2 GSI32*42.7*4.2 GSI35*42.3*3.2 | 34.59*2.62 36.09*3.53 37.77*2.62 |
35 36 36 | 45.7 43.3 46.7 | 4.2 3.2 4.2 | GSI35*45.7*4.2 GSI36*43.3*3.2 GSI36*46.7*4.2 | 37.69*3.53 39.34*2.62 40.87*3.53 |
38 38 40 | 48.7 53.1 50.7 | 4.2 6.3 4.2 | GSI38*48.7*4.2 GSI38*53.1*6.3 GSI40*50.7*4.2 | 40.87*3.53 43.82*5.33 44.04*3.53 |
Company Features1. Dms Seals Technology Co.,limited has specialist machines and production experience in the field.
2. Dms Seals Technology Co.,limited's mission is to provide high-value products and services on global scale. Contact!