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| Product Description |
Piston seals / GSF
The double acting GSF Glyd-Ring is a combination of a slipper seal and an energizing o-ring. It is produced with an interference fit which together with the squeeze of the o-ring ensures a good sealing effect even at low pressure.At higher system pressures, the o-ring is energized by the fluid, pushing the Glyd-Ring against the sealing face with increased force.
Application
GSF works perfectly as double acting piston seals of hydraulic components such as injection molding machines, machine tools, presses, excavators, forklifts & handling machinery, agriculture equipment, valves for hydraulic & pneumatic circuits and so on.
Material
Slipper Seal: PTFE + Bronze O-Ring: NBR/FKM
* Other material combinations can be customized according to working conditions.
Technical Date
Hardness Pressure Speed Temp. Medium
HS95±2A ≤63Mpa ≤5m/s -54 ~ +200℃ Hydraulic oil,water,emulsion.
Diagrammatic Drawing

If you want to get the standard size for Glyd-Ring, pls get in touch with Topseals for catalogue pls.
Piston seals / GSD
Piston seals GSD for reciprocated hydraulic system. GSD is a single-acting piston compact seal, consisting of a dynamic Teflon seal and a standard o-ring with static low permanent deformation. Possessing excellent performance in high and low pressure and high frequency conditions. Suitable for long and short stroke. Applied to bigger rod diameter in fluids and under high pressure, for example: bulldozers, compressors and other machine tools, etc.
Application
Piston seal GSD possessing excellent performance in high and low pressure and high frequency conditions. Suitable for long and short stroke. Applied to bigger rod diameter in fluids and under high pressure, for example: bulldozers, compressors and other machine.
Material
Slipper Seal: PTFE + Bronze Rectangular Ring: NBR/FKM
* Other material combinations can be customized according to working conditions.
Technical Date
Pressure Speed Temp. Medium
≤60Mpa ≤5m/s -45 ~ +200℃ Hydraulic oil, fire resistance oil, environmentally safe hydraulic fluid (bio-oil),water and others.
(according to seal material)
Diagrammatic Drawing

if you want to get the standard size for Glyd-Ring or sterfin ring, pls get in touch with Topseals for catalogue pls.
Of Course, we have many shape of hydraulic seals, such as piston seals, piston rod seals or shaft seals, dustproof sealing ring, ST-type sterfin ring, ST-Type glyd ring, dustproof sealing ring, OK combined sealing ring, SPGO type sealing ring, UN-type and UHS-type hydraulic sealing ring , vee packing set etc..
More shape of hydraulic seals, pls get in touch with topseals for catalogue of topseals for more info.
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| FAQ |
1) Are you a trading company or manufacturer ?
We have professional manufacturer with ISO9001:2008 certificate.
2) How about your raw material ?
We use selected imported raw material to make sure good physical property,
And we also could change the raw material compound formula ,
to meet your special processing conditions.
3) Can you tell us that what kind of elastomer we should use ?
We can suggest you which elastomer is available or economical
if you could tell us your request or applied enviorment & medium.
4) Can I get free sample for testing ?
It is ok to provide you free sample for stock items but your need pay the freight Normally.
5) What I need provide you to produce ?
We could produce according to your specific size or drawing or sample.
6) How do I pay you ? How about your payment terms ?
DDU, DDP,TT or others are available.
7) Do you support retail sales ?
Yes, we support retails sales for our stock products.
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