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.
A hydraulic seal is used to contain fluids and maintain the hydraulic pressure (piston seal, rod seal, back-up ring), to stop the inlet of impurities and to preserve the lubricating film on the rod (wiper seal) and to resist any deformation under a radial load by guiding the piston and rod (wear ring and guide strip).
DEF Seals has a complete range of hydraulic seals and we can also assist you in creating custom-made seals for linear and static hydraulic applications.
Polyurethane material display higher mechanical strength,high abrasion, wear and extrusion resistance,high pressure load capacity, as well as a high tear and elongation at break resistance.
The service life of polyurethane o-ring is 5 to 10 times more than rubber o-ring. We also provide customization service according to your drawings.
Advantages:
High performance under high pressure.
Low compression set.
Lomh service life.
Operating conditions:
Pressure: ≤ 50Mpa
Temperature: -30~+100° C
Speed: ≤ 1m/s
Material:
Material: CPU/TPU
Hardness: 90~95 Shor A
Color: Blue/Natural
Good Quality, Competitive Price.
Welcome to contact us for detailed information.
Sizes
Any size from 10mm to unlimited
Any cross section size
No tooling charge (depend on quantity)
Rapid Delivery as short as 1 day
Any commercial rubber material:
-Nitrile/NBR/Buna-N 70&90 Duromater
-Polyurethane/Urethane 70&90 Duromater
-FKM75&90 Durometer
-EPDM
-Silicone 70 Durometer.
1.How can you get sample free?
Answer: Sample free to you but your side pay the freight charge.
2.Could I make it according to my structure drawing?
Answer: Of course, we can make from your structure drawing.
3.Why choose Guangdong DEF Seals solutions Co., Ltd ?
1.Professional and reliability.
2.Complete production line, quickly delivery.
3.Advanced equipments, high quality and competitive price.
4.We have a heart like fire.
5.We are ready to serve you all the time.
MOQ(Pcs) |
100 |
| FOB |
FOB Shenzhen |
| Method of payment |
T/T (bank account, paypal,western union) |
| Delivery time |
5 to 7 working days, 2 days for in stock |
| Supply ability |
1000000PCS/Month |
| Packaging |
plastic film for inner packaging and cartons for outer packaging |
| Export market |
South Asia, Southest Asia, Europe, South America, North America, Africa, Middle East, Australia |
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