DMS SEALS TECHNOLOGY CO.,LIMITED
The Professional Sealing Solution Supplier(O Ring Suppliers & Oil Seal Manufacturers).
DMS Seals - Hydraulic Seals and Oil Ring Seals Manufacturer & Supplier
GSI - PTFE Hydraulic Rod Seal with NBR/FKM O-Ring
1. Installation Recommendation
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 |
Professional O Ring Suppliers & O Ring Manufacturers
CONTACT US
TEL: +86-757-86235767
Contact Person: Frank Zhou
E-mail:
sales@dmsseals.com
dms@dmsseals.com
Skype: 13318313660
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