CGA E-11-2015
Stationary compressed gas cylinder discharging manifolds for working pressures up to 3000 PSI

Standard No.

CGA E-11-2015

Release Date

2015

Published By

Compressed Gas Association (U.S.)

Scope

These requirements are for stationary cylinder discharging manifolds for compressed gases for industrial use. Manifolds are used to connect compressed gas cylinders together to supply a distribution system with a particular gas at a selected distribution pressure. The requirements cover manifolds complete to the point where they connect to a distribution system. Three basic gas groupings are covered: ? Fuel gases (grouped as acetylene, liquefied fuel gases, and nonliquefied fuel gases)-maximum 3000 psi (20 684 kPa) at 70 °F (21.1 °C);^{1, 2} ? Oxygen and air-maximum 3000 psi (20 684 kPa) at 70 °F (21.1 °C); and ? Carbon dioxide, nitrogen, and inert gases-maximum 3000 psi (20 684 kPa) at 70 °F (21.1 °C). Manifolds for gases used in oxy-fuel gas systems should be installed as outlined in NFPA 51, Standard for the Design and Installation of Oxygen-Fuel Gas Systems for Welding, Cutting, and Allied Processes. This publication does not cover manifolds for medical gas cylinders, for charging cylinders, or for gas or liquid withdrawal from portable cryogenic containers (DOT 4L/TC-4LM).