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Interpretation Response #PI-93-043 ([Continental Industries, Inc.] [Eldon Morain])

Below is the interpretation response detail and a list of regulations sections applicable to this response.

Interpretation Response Details

Response Publish Date:

Company Name: Continental Industries, Inc.

Individual Name: Eldon Morain

Location State: OK Country: US

View the Interpretation Document

Response text:

July 21, 1993

Mr. Eldon Morain

Vice President

Continental Industries, Inc.

4102 South 74th East Avenue

P.O. Box 994

Tulsa, Oklahoma 74101

Dear Mr. Morain:

This is in response to your letter of June 24, 1993, concerning the pipeline safety standard in 49 CFR 192.281(e)(2). You asked if a nonmetallic stiffener may be used to comply with this standard.

Section 192.281(e)(2) provides that for each compression type mechanical joint on plastic pipe, a rigid internal tubular stiffener, other than a split tubular stiffener, must be used in conjunction with the coupling. This standard does not regulate the type of material to use as long as the resulting stiffener is rigid. Also, since the stiffener will be in contact with gas, the stiffener must meet other applicable material requirements in Subpart B of Part 192.


Cesar De Leon

Director, Regulatory Programs

Office of Pipeline Safety

Regulation Sections

Section Subject
192.281 Plastic pipe