西门子二通球阀VAI51系列，新款，压力PN25，口径DN15-DN50
For use in heating, ventilation, and air conditioning plants as control or shutoff
valve. In closed circuits.
● Ball valve body made of brass, ball and stem made of stainless steel
● DN 15...50
● kvs 4...63 m3/h
● Connections with internal threading Rp per ISO 7-1
● Rotational angle 90°
● Can be used with electromotorized rotary actuators GQD..9A, GMA..9E with
spring return and GSD161.9A, GDB..9E, GLD161.9E, GLB..9E without spring
return
● For applications with auxiliary functions (e.g. auxiliary switch, potentiometer, see
Applications with auxiliary functions), can also be combined with standard rotary
