Metal O-seal

Name: Metal O-seal
Brand: Nichias Japan
Availability: InStock

Thương hiệu: Nichias Japan

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Metal O-seal TOMBO No. 9200P

Features

It has stable, high sealing performance over a wide range of conditions from high temperature to low temperature, and from high pressure to negative pressure.
When using this gasket in a gas, vacuum or highly volatile fluid, it is recommended that you use a PTFE-coated or silver-plated version

This gasket is made of a fine metal pipe, which is formed into a circle with its ends welded and its surface finished to a high degree of precision

■ Precautions concerning design and selection
● Finish of groove
　　・ For sealing gas or vacuum: 0.8μm Ra max.
　　・ In other cases: 1.6μm Ra max.

● A metal O-seal can only be made from 321 stainless steel or Inconel 600.

● The surface treatment thickness is between 0.03 and 0.05mm. For sealing a gas, vacuum or volatile fluid, surface treatment is necessary.

■ Precautions for use
To calculate the actual tightening load, add the load (Wa) of the end force part due to fluid pressure to the load (Wb) calculated from the compression load (Y).
The compression load indicates the necessary load for applying the correct tightening force.

● Calculation of tightening force
W = Wa + Wb
= (π/4)×G×G×P + π×G×Y

　W : Total bolt load [N]
　G : Gasket O.D. [mm]
　P : Pressure [MPa]
　Y : Compression load [N/mm]

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