GSI Square Combination Seal Compressor Guide Belt
Application Range
| Application Range | ||||
| Material | Pressure Pr:
N/mm²(Max) |
Temperature
[℃] |
Sliding speed
[m/s] |
Medium |
| PTFE | 15@25℃ 12@80°℃ 8@120°℃ |
-60..+260 | 15 | Mineral oil based
hydraulic fluids, barely flammable hydraulic fluids, water, air and others. |
| UHMW-PE | 25@25℃ 10@80℃ |
-160...+100 | 2 | Mineral oil based hydraulic fluids, barely flammable hydraulic fluids, water, air and others. |
| HG | 100@25℃ 50>60℃ |
-60...+120 | 1 | Mineral oil based
hydraulic fluids, barely flammable hydraulic fluids,water, air and others. |
Forms of Supply
Two characteristics must be observed with
respect to the forms of supply for DEFO GST
-Type of cut
The Angle Cut is the most frequently used standard type of cut. Rings with other types of cut-Straight Cut and Step Cut are available on request.
Design type
DEFO GST has a rectangular cross-section with rounded or chamfered edges, thus preventing impermissible edge forces in the corner radii of the grooves. The chamfers also serve to facilitate installation,e.g. when inserting into the cylindrical tube or guide bush.The ring ends are finished as standard with an angle cut.Strip material is available in rolls or precut to size to fit with the gap necessary.
Empaistic structure
GST up to and including 2 mm radial thickness in PTFE materials are as standard supplied with Empaistic structure on the sliding surfaces.
This structure comprises small lubricant pockets on the surface which improve the initial lubrication and promote the formation of a lubricant film. They also help to protect the seal system through their ability to embed any foreign particles. In order to be able to use the strip material for both piston and piston rod guides, the rings have this same empaistic structure on both sides.
