API/IP Spec 1584: 2001 Four-Inch Hydrant System Components and Arrangements

American Petroleum Institute (API) and The Institute of Petroleum, London (IP). Third Edition, April 2001. 49p. ISBN: 0 85293 280
4. This publication specifies dimensions, coupling action, activation, and other requirements to achieve the necessary operational requirements and full interchangeability between components from manufacturers of hydrant pit valve assemblies and couplers. It also includes requirements for other optional features which component manufacturers may be requested to provide by purchasers. The performance specifications are for equipment intended for systems in aviation turbine fuel service.