Watson McDaniel HD Regulator W/ Pilot PP-B 20-100 psig.
(Other ranges are available)
The HD-Series Pilot-Operated Regulators is for pressure reduction or temperature control in steam service applications. These valves require the use of a pressure or temperature pilot which attaches to the main valve to perform the desired function. Back pressure and differential pressure pilots are also available. When both a pressure and temperature pilot are used together an additional pilot adapter is required.
