Oxygen Manifold and Piping

By TimGary (****)

Date 08-19-2011 20:20

It really depends on the intended service for the oxygen, but I would say welded stainless steel with minimal threaded connections.
Black Iron and Copper will contaminate the oxygen.

By 99205

Date 08-19-2011 20:27 Edited 08-22-2011 02:36

http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=9854

OSHA

• Part Number: 1910
• Part Title: Occupational Safety and Health Standards
• Subpart: Q
• Subpart Title: Welding, Cutting, and Brazing
• Standard Number: 1910.253
• Title: Oxygen-fuel gas welding and cutting.

1910.253(d)(1)(i)(A)
Piping and fittings shall comply with section 2, Industrial Gas and Air Piping Systems, of the American National Standard Code for Pressure Piping ANSI B31.1-1967, which is incorporated by reference as specified in Sec. 1910.6, insofar as it does not conflict with paragraph (d)(1)(i)(A)(1) and (d)(1)(i)(A)(2) of this section:

1910.253(d)(1)(i)(A)(1)
Pipe shall be at least Schedule 40 and fittings shall be at least standard weight in sizes up to and including 6-inch nominal.

1910.253(d)(1)(i)(A)(2)
Copper tubing shall be Types K or L in accordance with the Standard Specification for Seamless Copper Water Tube, ASTM B88-66a, which is incorporated by reference as specified in Sec. 1910.6.

1910.253(d)(1)(i)(B)
Piping shall be steel, wrought iron, brass or copper pipe, or seamless copper, brass or stainless steel tubing, except as provided in paragraph (d)(1)(ii) and (d)(1)(iii) of this section.

By DaveBoyer (*****)

Date 08-20-2011 03:49

In a medical building the company that My Dad worked for built, the Oxy lines were copper soldered with a silver bearing soft solder, Staybrite or similar.

At the auto frame plant I worked at, I think they were threaded steel pipe.

By 357max

Date 08-22-2011 13:32

If you mean oxygen and acetylene manifold. DO NOT USE COPPER with acetylene!!! It is a fantastic means to remodel a building.So if the building is too crowded, go for it.