
Heavy-Duty High Pressure Oil Cylinder Piston Seal Glyd Ring 390*360*15
Model: DSF
Temperature: -45/+200℃
Speed: ≤15m/s
Pressure: ≤60MPa
Product Introduction
After years of exploration, our metric hydraulic wear ring, wiper seal dkbi, Lip U Cup Rod Seals BD has condensed the world's cutting-edge technology, hoping that it will come closer to the needs of consumers. We focus on cultivating company employees with better management thinking and awareness, good willingness to learn and development potential. In order to gain a foothold and seek development in the changeable market environment, we constantly seek new competitive advantages and enhance our comprehensive strength. As we all know, people-oriented and rule by law are complementary to each other and unified in the concrete innovation and practice of enterprise reform, management and development. We take honesty and trustworthiness as the code of conduct for our business operations and employees.
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.


Quality oriented, providing excellent Heavy-Duty High Pressure Oil Cylinder Piston Seal Glyd Ring 390*360*15 and perfect service is our promise to you. Now in many countries can see the traces of our company's products and can appreciate the artistic charm created by our products. We will keep our promises, be proactive, further increase investment in research and development, and develop better products to share with our customers.
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