
Thin Glyd Ring Piston Rod Seal for Shaft and Hole
Model: DSF
Temperature: -45/+200℃
Speed: ≤15m/s
Pressure: ≤60MPa
Product Introduction
Adhering into the basic principle of 'quality, assistance, effectiveness and growth', we have attained trusts and praises from domestic and worldwide client for single lip oil seal, shaft wiper seals, chevron v packing. We have a relatively complete production, testing and quality control system to meet the different needs of customers to ensure the service life of the products. We always keep in mind the cost consciousness, value things and time, and strive to improve performance.
Description
Glyd ring piston seal DSF is composed of PTFE seal and O-ring. It is used for double acting sealing of the piston rod of the hydraulic cylinder. Due to adopting special modified PTFE material, it can guarantee excellent low friction, wear resistance, extrusion resistance, high-temperature resistance and chemical resistance.
Glyd ring is a very effective and reliable low friction seal. It is particularly suitable as a piston seal in high pressure and low pressure systems. It comprises a PTFE ring, strengthened with additives to resist creep, which is pre-loaded by an O ring to be effective for the operating pressure range recommended.
As the pressure rises the O ring deforms and compresses the PTFE ring against the tube wall increasing the sealing force and the effectiveness of the seal. As only the PTFE ring is in contact with the sliding surface, friction is very low and stick-slip movement is eliminated.
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 ISO7425/1, GB/T15242.3,PG44/PG42/PG46, GS55044/42/46, GSF, Trelleborg-PG4 series,Merkel company's OMK-MR series、Parker-OE series、AS-YB 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≤ |
8~24 | D-4.9 | 2.2 | 1.8 | 2 | 0.4 |
15~48 | D-7.5 | 3.2 | 2.65 | 2 | 0.4 |
25~110 | D-11 | 4.2 | 3.55 | 3 | 0.8 |
50~140 | D-15.5 | 6.3 | 5.3 | 5 | 1.2 |
125~320 | D-21 | 8.1 | 7 | 7.5 | 1.6 |
330~660 | D-24.5 | 8.1 | 7 | 8 | 1.6 |
670~990 | D-28 | 9.5 | 8.4 | 8 | 1.6 |
1000~1500 | D-38 | 13.8 | 12 | 8.5 | 2 |
Feature
● Low stick/slip
● Low breakout and running
● High surface speed
● Compact piston design
● Suitable for non lubricating fluids depending on seal material for optimum design flexibility
● High wear resistance ensures long service life
● No adhesive effect to the mating surface during long period of inactivity or storage
● Suitable for most hydraulic fluids in relation with most modern hardware materials and surface finish depending on material selected


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.


'Improve value with service, and strive to become the best service provider in the industry of Thin Glyd Ring Piston Rod Seal for Shaft and Hole' is our corporate purpose. Welcome new and old customers from all walks of life to visit and guide, and work with us to create a brilliant future. Our goods you worth have. Our company is in line with the principle of good faith management and quality-oriented, and we decide that no matter how much sacrifice we make, we should also guarantee the interests of customers.
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