Agilent Varian NHS-35 Upper Thermal Switch, Diffusion Vacuum Pump Replacement Parts
Agilent Varian Part Number PN K9050005
This is a replacement upper thermal (water) switch. Fits the Agilent Varian NHS-35 Diffusion Pump.
Set at 200º F, 93º C.
For location of the upper thermal switch see figure #8 (diagram exploded view & parts illustration) below.