Home >> Products >> For Automotive Air-Conditioning / Regulating Valves ◆QBS Regulating Valves (Only available by order) ● Installed on externally capacity-adjustable compressors, the regulating valves control the compressor capacity between the maximum and the minimum. ● The valve controls the suction pressure of a compressor in response to external input signal, ensuring minimum compressor operation and lower power consumption. ● Compatible with either clutch or clutchless compressors. QBS Regulating Valves 7-17-24, Todoroki Setagaya-ku, Tokyo, 158-0082, Japan.