DIN 16270 Shut Off Valve For Pressure Measuring Instruments Model 91011 DIN 16270 Type A AS-Schneider Gauge Valves are designed for mounting to Pressure Gauges, Pressure Transmitters and Pressure Switches and are manufactured and tested according to DIN 16270. The type with 1/2 NPT connection (see below) is not mentioned in DIN 16270. According to DIN 16270 are the valves applicable for a max. allowable (Working) Pressure (PS) of 250 bar (3,626 psi) (brass) respectively 400 bar (5,801 psi) (carbon steel and stainless steel) and a max. allowable Temperature (TS) of 120°C (248°F) for liquids, gas or vapors.