O-Ring

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VALQUA No.
640
Product name
Synthetic rubber O-ring Dynamic application
Shape
O-RING
O-RING
Features1
Highly versatile (Basic)
Features2
It rolls, twists
Features3
In general, the product is not suitable for dynamic application (suitable for open/close)
Inventory status
Manufacturable product

Standard size
・JIS B2401・AS 568・AN 6227、6230 〄
・MS28775 ・ISO/R 1077・JASO (航)
Type
Squeeze

Application classification
Common use
Pressure classification
None
Standard material
Usage location Material name Material No.

Subject to JISB2401

Non-standard quality of material (adaptable material)

Non-standard materials are subject to the material selection criteria

Sealing direction
Flat surface Cylinder Cylindrical piston Cylindrical rod
- - ○ ○
Size
JIS sizes P series is applied

■ Product content and main applications

Product content
Synthetic rubber material is molded into a ring shape with O-shaped cross section. Lubricant rubber material with low friction is also available.
Main applications
Since its structure is simple with non-oriented sealing, the product can be used as a static gasket and dynamic packing for machinery in a wide pressure range.

■ Service temperature range

Rubber material Service temperature range
－ －
Click here for the list of rubber materials

Service temperature is subject to the material selection criteria

■ Operating pressure, pressure direction and pressure types

Pressure Pressure (with back-up ring) Pressure direction
14MPa Spiral: 34.3MPa Bi-directional
One-cut, endless: 49MPa

Pressure types
shock, surge, pulse, vacuum		 They can be all 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
0.04～1.0m/sec
PV Value
-

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

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


■ Cross-section dimensions and design precautions

・Cross-section dimensions

Φ1.9


・Design precautions

■ Case examples of defects and countermeasures

■ FAQ

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

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