scope:

COVERAGE

This specification covers filament wound (FW) and centrifugally cast (CC) fiberglass line pipe and fittings for pipe in diameters up to and including 24 in. in diameter and up to and including 1000 psig cyclic operating pressures. In addition, at the manufacturer's option, the pipe may also be rated for static operating pressures up to 1000 psig. It is recommended that the pipe and fittings be purchased by cyclic pressure rating. The standard pressure ratings range from 150 psig to 300 psig in 50 psig increments, and from 300 psig to 1000 psig in 100 psig increments, based on either cyclic pressure (ref. 5.5.1) or static pressure (ref. 5.5.2). Quality control tests, hydrostatic mill tests, dimensions, weights, material properties, physical properties, and minimum performance requirements are included.

UNIT CONVERSION

A decimal/inch system is the standard for the dimensions shown in this specification. Nominal sizes will continue to be shown as fractions. For the purposes of this specification, the fractions and their decimal equivalents are equal and interchangeable. Metric conversions are described in Appendix G.

SUGGESTIONS FOR ORDERING API LOW PRESSURE FIBERGLASS LINE PIPE AND FITTINGS

In placing orders for line pipe to be manufactured in accordance with API Specification 15LR, the purchaser may specify the following on the purchase order:

Attention is called to the following paragraphs which may require agreement between the purchaser and the manufacturer:

The purchaser should also state on the purchase order his requirements concerning the following stipulations which are optional with the purchaser: