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| Customization: | Available |
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| Material: | PTFE |
| Application: | PTFE+Bronze |
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The DEF rod seal consists of a PTFE rod sealing ring and NBR/FKM O-Ring. This rod seal is designed to ensure that pressurized fluid does not leak out of the system.
Hydraulic seals and pneumatic seals are designed as per the cylinder working pressure, cylinder speed, operating temperature, working medium and application.
Hydraulic seals are generally relatively soft, non-metallic rings captured in groove or fixed in a combination of rings, forming a seal assembly, to block or separate fluid in reciprocating motion applications. Hydraulic seals are vital in machinery. Their use is critical in providing a way for fluid power to be converted to linear motion. Not only must the hydraulic seals prevent leakage of fluid from the Cylinder, but hydraulic seals must also withstand high pressures, extreme temperatures and transverse forces within the cylinder. In such applications, the function of Hydraulic Seals goes far beyond preventing fluid leakage.
Hydraulic seals can be made from a variety of materials such as polyurethane, rubber or PTFE. The type of material is determined by the specific operating conditions or limits due to fluid type, pressure, fluid chemical compatibility or temperature.
A static hydraulic seal is located in a groove and sees no movement - only sealing within its confined space, acting like gasket.
A type of dynamic hydraulic seal called a rod seal is exposed to movement on its inner diameter along the shaft or rod of a hydraulic cylinder. A type of dynamic hydraulic seal called a piston seal is exposed to movement on its outer diameter along the tube or bore of a hydraulic cylinder.
The series is in conformity with ISO 7425/I, GB/T15242.1 and GB/T15242.3
| Range of d mm | D mm |
L | d1 | C≥ | R1≤ |
| 10-28 | d+8 | 3.2 | 2.65 | 2 | 0.4 |
| 30-80 | d+10 | 4.2 | 3.55 | 3 | 0.8 |
| 50-180 | d+15 | 6.8 | 5.7 | 5 | 1.2 |
| 180-280 | d+20 | 8.1 | 7 | 7.5 | 1.6 |
| 280-400 | d+25 | 9.8 | 8.9 | 7.5 | 1.6 |
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