1. Description
A single-acting O-Ring energized rod seal for dynamic applications,step seals can be installed in closed grooves including grooves to ISO 7425. It offers high sealing efficiency, low friction with no stick-slip, minimal break out force and high wear resistance. Optimum sealing characteristics are achieved by installing in a tandem step seals arrangement together with a double-acting scraper. Available in bronze filled PTFE materials.
2. Installation Recommendation
3. Installation dimensions - Standard recommendations
|
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 |
|
200-255.9 |
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 |
4. Standard materials
Sealing ring: filled PTFE
O-Ring: NBR / FKM
5. 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 |
|
|
|
4 5 6 |
8.9 9.9 10.9 |
2.2 2.2 2.2 |
GSJ4*8.9*2.2 GSJ5*9.9*2.2 GSJ6*10.9*2.2 |
5.28*1.78 6.75*1.78 7.65*1.78 |
|
8 8 10 |
12.9 15.3 14.9 |
2.2 3.2 2.2 |
GSJ8*12.9*2.2 GSJ8*15.3*3.2 GSJ10*14.9*2.2 |
9.25*1.78 10.77*2.62 11.8*1.78 |
|
10 12 12 |
17.3 16.9 19.3 |
3.2 2.2 3.2 |
GSJ10*17.3*3.2 GSJ12*16.9*2.2 GSJ12*19.3*3.2 |
12.37*2.62 13.3*1.78 13.94*2.62 |
|
14 14 15 |
18.9 21.3 19.9 |
2.2 3.2 2.2 |
GSJ14*18.9*2.2 GSJ14*21.3*3.2 GSJ15*19.9*2.2 |
15.6*1.78 15.54*2.62 16.67*1.78 |
|
15 16 16 |
22.3 20.9 23.3 |
3.2 2.2 3.2 |
GSJ15*22.3*3.2 GSJ16*20.9*2.2 GSJ16*23.3*3.2 |
17.12*2.62 17.17*1.78 18.72*2.62 |
About more dimensions, you can download it through below link.
http://www.foreverseals.com/download.html
Name: Kevin Li
Mobile：+86-13049188460
Tel：+86-13049188460
Whatsapp：+86-18098184099
Email：sales@foreverseals.com
Add：F4C17, Building 3, Huiquan science park, Taoyuan East Road, Shishan Town, Nanhai District, Foshan city, Guangdong Province, P.R. China 528225
