U-Shaped Sealing Rings
Material： FKM
|
property
|
unit
|
test method
|
test parameter
|
value
|
|
hardness
|
Shore A
|
ASTM D 2240 |
75
|
|
|
tensile strength
|
MPa
|
ASTM D 412
|
14.7
|
|
|
ultimate elongation
|
%
|
ASTM D 412
|
183
|
|
|
modulus at 100%
|
MPa
|
ASTM D 412
|
6.1
|
|
|
specific gravity
|
g/cm3
|
ASTM D 297
|
1.88
|
|
|
compression set
|
%
|
ASTM D 395 B
|
22h / 200°C
|
23
|
|
low temp. resistance
|
°C
|
ASTM D 1329
|
TR10
|
-16
|
what are U-shaped sealing rings?
The U-shaped sealing rings have a symmetrically arranged sealing lip, which has good corrosion resistance and wear resistance. It forms a good lubricating oil film in the sealing gap and does not affect sudden loads. U-shaped sealing rings can be divided into three categories: U-shaped rings for pumping, U-shaped rings for holes, and U-shaped rings for both holes and shafts. The materials usually use polyurethane, fluoro rubber, nitrile rubber, etc.
As an efficient sealing solution, U-shaped sealing rings play an important role in many industries. It has excellent sealing performance, wear resistance, and chemical corrosion resistance, and is suitable for various harsh working environments.
Its products are made of high-quality elastic materials have excellent sealing performance, wear resistance, and chemical corrosion resistance, and can meet the needs of U-shaped sealing rings in different industries.
Application scenarios of U-Shaped Sealing Rings
1
Automobile industry: U-shaped sealing rings are widely used in key parts of automobile engines, transmissions, hydraulic systems, etc., providing reliable sealing effects under high temperature and high-pressure conditions.
2
Engineering machinery: U-shaped sealing rings are often used in the sealing parts of hydraulic cylinders, oil cylinders, and other equipment in engineering machinery, and can withstand high working pressure and frequent movements.
3
Pump and valve industry: U-shaped sealing rings can be used in the sealing parts of various pumps and valves to ensure the sealing and working stability of the fluid system.
U-Rings
U-ring seals (also called U-seals, U-cup, and Symmetrical seals) is a multipurpose seal that can be fitted either on a rod or a piston cylinder and has a unique "U" shaped profile. Both the outer and inner sealing lips are designed to optimize both rod and piston sealing applications.
The outer static lip seal functions against mating surfaces that have no relative motion between each other. The inside of the U-Seal is a dynamic lip seal that is used where there is motion between surfaces. The "U" shape energizes the sealing lips as the application pressure increases.
More about the U-ring seal
The outside is a static lip seal that functions against mating surfaces that have no relative motion between each other. The inside of the U-Seal is a dynamic lip seal that is used when there is motion between surfaces. The "U" shape energizes the sealing lips as the application pressure increases.
The primary reason for the existence of U-rings is their interchangeability between rod and piston applications.
The U-rings have high sealing properties and excellent resistance to abrasion, friction, and wear. Its use is recommended with hydraulic oils, mineral oil-based hydraulic fluids, lubrication oils, and HFA/ HFB fluids.
Loaded or unloaded
Loaded
A loaded U-ring is loaded with an O-ring or sometimes a quad ring, between the two lips of some seals and helps increase the sealing force at low pressures while blocking or separating fluid in reciprocating motion applications.
The loaded U-Cup is that when you add a "loader or energizer" to a lip seal, you turn it into a squeeze seal. This provides high sealing force at low pressure. As the system pressure increases, the lip loading also increases, automatically compensating for the higher pressure while maintaining a positive seal
Unloaded
With an unloaded U-ring, the seal is simply not loaded with an O-ring or a quad ring inside.
Specification
■ For use in conjunction with JACOB pull-rings and pipework system with a 6 mm lip.
■ U-shaped seals for 1 mm pipework system, also for connecting 1 mm to 1.5 mm, 1 mm to 2 mm, and 1.5 mm to 1.5 mm thick pipe components.
■ U-shaped seals for 2 mm pipework system, also for connecting 2 mm to 1.5 mm thick pipe components.
■ For 3 mm thick pipe components, the use of U-shaped seals made of NBR or silicone is recommended for a 2 mm pipework system.
Available diameter
60, 80, 100, 120, 140, 150, 175, 200, 224, 250, 280, 300, 315, 350, 400, 450, 500, 560, 630 mm
Please contact us if necessary!
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