DIN EN ISO 15996:2017-12

This International Standard specifies design, type testing and marking requirements for valves incorporating residual pressure devices, hereinafter referred to as residual pressure valves (RPVs). This International Standard applies to the following types of RPVs: a) cylinder valves intended to be fitted to refillable transportable gas cylinders; b) main valves (excluding ball valves) for cylinder bundles; c) cylinder valves or main valves with integrated pressure regulator (VIPR); d) valves for pressure drums and tubes; which convey compressed or liquefied gases. These requirements are in addition to those in ISO 10297. This International Standard does not apply to RPVs for portable fire extinguishers, cryogenic equipment, low pressure refrigerant gases (cylinder test pressure less than 50 bar), dissolved gases or liquefied petroleum gas (LPG).