U-Packing

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VALQUA No.
2060-MPP
Product name
Synthetic Rubber Molded Product U-Packing
Shape
U-PK asymmetrical round lip(P)
U-PK asymmetrical round lip(P)
Features1
For pneumatic use, for low pressure use
Features2
Exclusive for piston seal application
Features3
Low resistance
Inventory status
Manufacturable product

Standard size
JIS B2406/P
Type
Lip

Application classification
For pistons
Pressure classification
Pneumatic
Standard material
Usage location Material name Material No.
Main part NBR B0180

Non-standard quality of material (adaptable material)

Sealing direction
Flat surface Cylinder Cylindrical piston Cylindrical rod
- - ○ Exclusive -
Size
Piston standard: φ30 to 140

■ Product content and main applications

Product content
Polyurethane rubber material is molded into a ring shape with a U, J and L-shaped cross section.
Main applications
It is used as a seal for various types of hydraulic machinery from -20 to 80℃. Especially appropriate for hydraulic cylinder packing that needs high-pressure and abrasion-resistant properties.

■ Service temperature range

Rubber material Service temperature range
NBR -20℃ ~ 80℃

■ Operating pressure, pressure direction and pressure types

Pressure Pressure (with back-up ring) Pressure direction
~1.0MPa Basically not used One-side pressure
-

Pressure types
shock, surge, pulse, vacuum
They can all be accommodated

■ Motions and strokes applied

For fixing -
Reciprocating
Rotating ×~△
Helical
Opening and shutting ×
Sliding ×
Oscillating -
Stroking
Stroking is not specified; however, a short stroke could cause a lack of lubrication.

■ Fluid, speed and PV value

Liquid
Gas
Fine particle ×
General dust -
Oil film -
Speed
0.7m/sec or less
PV Value
-

Lubrication, mountability, sliding resistance, compression resistance, eccentricity/inclination, conformance

Lubrication
Needed
Mountability
Good
Sliding resistance
and compression resistance
Low
Eccentricity/inclination
and conformance
High


■ Cross-section dimensions and design precautions

・Cross-section dimensions

1.9W


・Design precautions

Mini U-packing that can be used for an O-ring groove is removed from the standard.

■ Case examples of defects and countermeasures

■ FAQ


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