U-Packing

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VALQUA No.
4060-UPP
Product name
Custom-Made Fluororubber Molded Product
Shape
U-PK asymmetrical round lip(P)
U-PK asymmetrical round lip(P)
Features1
For pneumatic use
Features2
For low pressure
Features3
Exclusive for piston seal application, low resistance
Inventory status
Products that are made based on the orders received

Standard size
JPAS 001
Type
Lip

Application classification
For pistons
Pressure classification
Pneumatic
Standard material

none

Non-standard quality of material (adaptable material)
Usage location Material name Material No.
Main part FKM D0380

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

■ Product content and main applications

Product content
Fluororubber material is molded into a ring shape with a U-shaped cross section.
Main applications
It is used as a seal for pneumatic machinery that requires heat, acid and solvent resistance.

■ Service temperature range

Rubber material Service temperature range
FKM -10℃ ～ 150℃
Click here for the list of rubber materials

■ Operating pressure, pressure direction and pressure types

Pressure Pressure (with back-up ring) Pressure direction
～1MPa 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

‣FAQ about high performance elastomer is here
 ‣FAQ about the elastomer is here

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