scope:

Scope and purpose

This publication covers cryogenic reciprocating pumps and pump installations for hydrogen and LNG service.

The information contained in this publication only applies to new installations designed after the publication of this document and not to existing installations. However, the information contained in this publication may benefit existing installations or those in the project phase.

This publication does not cover:

• Cryogenic reciprocating pumps and installations for liquid oxygen, argon, and nitrogen, which are coveredin CGA P-48, Reciprocating Cryogenic Pumps and Pump Installations for Oxygen, Argon, and Nitrogen [1];¹

• Centrifugal liquid oxygen pumps, which are covered in CGA G-4.7, Stationary, Electric-Motor-Driven,Centrifugal Liquid Oxygen Pumps [2]; and

• Carbon dioxide pumps, which are covered in CGA G-6.3, Carbon Dioxide Cylinder Filling and HandlingProcedures and EIGA Doc 83, Recommendations for Filling of Cylinders and Bundles with Carbon Dioxide[3, 4].

¹ References are shown by bracketed numbers and are listed in order of appearance in the reference section.