Click image to view full size image
Description
Step seals is composed of a rubber O-ring and a PTFE ring. The material is PTFE+NBR. In special cases, rubber will be used FKM. It can be divided into rod step seals and piston step seals, but the sealing effect is same.
According to its own deformation, will generate a higher initial contact stress on the sealing surface, prevent liquid leakage. When the hydraulic cylinder is working, the pressure fluid is elastic deformed through the O ring, maximize squeeze the square ring, making it close to the sealing surface, generated high additional contact stress and increased the pressure of the pressure liquid. Together with the initial contact stress, the leakage of the pressure liquid is prevented.
The installation physical performance of the rod step seals is stable. It has good dust-proof effect and is not easy to be invaded by foreign objects. Can prevent all external interference. Rod step seal has the characteristics of long service life, strong extrusion resistance and high wear resistance.
Slide Ring Material |
PTFE Filled Bronze, Carbon, MoS2, Graphite, Glass Fiber, Ekonol, Polyimide, etc. |
Slide Ring Color |
Black,Green,Coffee,Yellow etc. |
O Ring Material |
NBR or FKM |
Color |
Black or Brown |
Speed |
≤15m/s |
Temperature |
-45 to 200℃ |
Pressure |
≤60MPa |
Medium |
Mineral oil based hydraulic fluids, barely flammable hydraulic fluids, water, air and others |
Application |
Mobile hydraulics, Standard cylinders, Machine tools, Injection moulding machines, Presses etc. |
Standard or can fit the groove |
Comply with standard of ISO7425/2, GB/T15242.3,RS13/RS11/RS15,,GSJ, Parker-OD series、Merkel company's OMS-MR series、Trelleborg-RS13 series、AS-XB series |
Pressure |
160bar |
250bar |
400bar |
Max Gap E |
E≤0.6mm |
E≤0.4mm |
E≤0.2mm |
Installation Dimension table based on Metric Size (mm)
d h9 |
D H9 |
L +0.2 |
O Ring CS d1 |
C≥ |
R1≤ |
4~18 |
d+4.9 |
2.2 |
1.8 |
2 |
0.4 |
8~25 |
d+7.3 |
3.2 |
2.65 |
2 |
0.4 |
19~150 |
d+10.7 |
4.2 |
3.55 |
3 |
0.8 |
38~250 |
d+15.1 |
6.3 |
5.3 |
5 |
1.2 |
50~255 |
d+20.5 |
8.1 |
7 |
7.5 |
1.6 |
250~700 |
d+24 |
8.1 |
7 |
8 |
1.6 |
650~1500 |
d+27.3 |
9.5 |
8.6 |
8.5 |
2 |
1000~1500 |
d+38 |
13.8 |
12 |
8.5 |
2 |
Feature
● Low friction resistance, no creeping phenomenon
● The dynamic and static sealing effects are quite good
● No stickiness
● Good performance in both lubrication and no lubrication
● The groove structure is simple
● High pressure resistance, strong adaptability to working conditions
The company has 5,000 square meters of professional production plants, 2000 square meters of constant temperature and humidity production workshop, dozens (sets) of advanced production equipment.
Own a professional and technical production team and sales service team.
The selection of raw materials are international first-line brand suppliers, In order to ensure product quality, we promise that don't add waste (recycled materials) in the material.
http://www.sealsdsh.com/