This is a replacement reed switch harness for HVA pneumatic valves. This single harness has both the OPEN and CLOSE reed switches, clearly marked. HVA part number 07744. HVA pneumatic gate valves are often found connected to turbo pumps in high or ultra high vacuum systems.

If you are performing bakeout or other high temperature applications, we suggest using the HIGH TEMPERATURE reed switch harness replacement (part number P1012124).