The E36HV HEAD ASSEMBLY, EHE36, HV is a Walchem metering pump repair part that consists of the head assembly designed for use with the EHE36 metering pump model. This particular head assembly features a HV valve material construction, which means it is made from highly chemical-resistant materials to withstand the corrosive properties of harsh chemicals commonly used in industrial applications. The head assembly plays a crucial role in the operation of the metering pump, serving as the primary mechanism that controls the flow of the fluid being dispensed. By replacing a faulty or worn-out head assembly with the E36HV, users can effectively restore the performance of their Walchem EHE36 metering pump.