Most recent
DIN SPEC 74107:2015
Road vehicles - R744-Air-conditioning systems - Orifice with bypass (OTB); Text in German and English
This DIN SPEC describes the functions and requirements from the view of the vehicle manufacturers for the quality, strength and lifetime of back-pressure valves which are operated in refrigeration circuits with refrigerant R744and determines functional tests.
Deutsches Institut für Normung [din]