V-Packing

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VALQUA No.
2631-VGH
Product name
Synthetic Rubber V-Packing
Shape
VGH
VGH
Features1
For hydraulic use
Features2
Common application for rod seal and piston seal
Inventory status
Manufacturable product

Standard size
JIS B 2403
Type
Lip

Application classification
For rods
Pressure classification
None
Standard material
Usage location Material name Material No.
Main part NBR B0390

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

Sealing direction
Flat surface Cylinder Cylindrical piston Cylindrical rod
○ ○
Size
Standard: φ6.3 to 300
Actual: near φ1000

■ Product content and main applications

Product content
Synthetic rubber material is molded into a ring shape with a V-shaped cross section.
Main applications
Mainly used as a sealant for hydraulic machinery.

■ Service temperature range

Rubber material Service temperature range
NBR -30℃ ～ 80℃
Click here for the list of rubber materials

■ Operating pressure, pressure direction and pressure types

Pressure Pressure (with back-up ring) Pressure direction
17.2MPa 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
0.05～0.5m/s
PV Value

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

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


■ Cross-section dimensions and design precautions

・Cross-section dimensions

5Ｗ


・Design precautions

Acceptable as long as it is designed based on the design criteria

■ Case examples of defects and countermeasures

■ FAQ

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

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