Detailed Product Description

IntroductionSP74JA Principle: two highly sensitive pressure elements which directly oppose each
other. It is used on cooling station system to balance pressure differential
between water controller and water separator. It has a SPDT floating action contact.
Through operating bypass valve switch, which realize pressure differential
balance between supply and return water. When the system differential pressure increases
above the control's set point, the valve opens further. More water is diverted
through the bypass valve, resulting in a reduction in system pressure differential
between supply and return lines. The SP74JA controller is also suitable
for using on other air and liquid pressure differential applications.