STYLE 2238-OX

Valve Stem Packing for Oxygen Service

Material Composition

Packing Style 2238-OX is composed of a high purity flexible graphite yarn with oxidation inhibitors, individually reinforced with an Inconel® 600 wire mesh. The entire process is maintained in a clean room environment from the yarn to the finished product.

Properties

The specific needs of oxygen based operations were taken in consideration while developing Style 2238-OX to make it the ideal sealing solution for oxygen service applications.

Application

Teadit Style 2238-OX was designed for valves used in oxygen service. It is not suitable for electrolyte containing applications.

Benefits

The materials selected and the manufacturing procedure developed for this packing allows for contaminate-free properties needed for oxygen service valves, while assuring a fire-safe operation and delivering low leak rates.

Service Limits

According to BAM test report 2-2950/2014 E the 2238-OX packing maximum service limits are:

For gaseous oxygen
Temperature C(F) Oxygen Pressure bar(psi)
UP TO 60(140) 210(3046)
>60(140) UP TO 300(572) 140(2030)
For liquid oxygen
No pressure limitation since compression of oxygen has no considerable influence on the reactivity of the material.
Flexible graphite yarn typical properties:
Carbon Content (%) ≥98
Ash Content (%) ≤2
Total Chlorides Content (ppm) ≤25
Total Fluorides Content (ppm) ≤10
Total Halogen Content (ppm) ≤100
Total Sulfur Content (ppm) < 300
Oxidation rate in air at 670C (%/h) ≤1

Approximate Yields (+/- 10%)

Size mm 3.2 5 6.4 8 9.5 11 12.6 14 16 19 22 25
Inch 1/8 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1
Package 1 Lb (0.5kg) 2 Lbs (1kg) 5 Lbs (2kg) 10 Lbs (5kg)

 

 

 

 

 

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10545 Red Bluff Road, Pasadena, TX 77507
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