API RP 1004

Abstract

This RP covers required and recommended features of the following aspects of bottom loading and vapor recovery: <br>a. The configuration and operation of 4-in. (101.6-mm) adapters for bottom loading. <br>b. Tank vehicles equipped for bottom loading or vapor recovery. <br>c. Secondary shutoff control systems. <br>d. Loading installations equipped for bottom loading or vapor recovery. <br>Since most petroleum terminals serve more than one tank truck carrier, guidelines are necessary to ensure that the equipment is compatible. Sections 4 through 7 describe means of attaining operating flexibility with vehicles equipped for bottom loading and vapor recovery. Where compatible equipment is required, certain features must be standardized; these items are listed as required features. Other features are desirable but are not essential to interchangeability; these are listed as recommended features. <br>For this edition of API RP 1004, all dimensions in customary units have been converted to the International System of Units (SI) and carried to decimal figures. <br><strong>PURPOSE</strong> <br>The purpose of this Recommended Practice (RP) is to provide guidance to users and manufacturers in the design and operation of bottom loading and vapor-recovery systems to provide greater reliability and interchangeability with safe features.