POWERS CONTROL P

CONSTRUCTION MATERIALS-NAMELY, PIPE HANGERS AND ROUGHING IN BOX FORMS

FLUID MIXING VALVES; AIR MIXING VALVES; PRESSURE REGULATORS AND REDUCING VALVES; SELF-CLEANING FLUID STRAINERS; STEAM TRAPS FOR STEAM PRESSURE USES; AND PRESSURE EQUALIZING VALVES

ELECTRICAL CONTROL SWITCHES, ELECTRICAL MEASURING SWITCHES AND INSTRUMENTS, AND ELECTRICAL COMPONENTS

TEMPERATURE RECORDING THERMOMETERS; THERMOSTATIC TEMPERATURE REGULATORS; PNEUMATIC, BULB, AND HYGRO THERMOSTATS FOR CONTROL OF VALVES, AND DAMPERS USED TO REGULATE THE FLOW OF HEATING, AND COOLING MEDIUMS; ROOM CONTROL THERMOSTATS; PNEUMATIC THERMOSTATS; THERMOSTATICALLY CONTROLLED STEAM TRAPS; THERMOSTATICALLY CONTROLLED FLUID MIXING VALVES; AND HYGROSTATS

HAND AND POWER OPERATED DAMPERS FOR CONTROL OF AIR OR GAS FLOW, INCLUDING SUCH TYPES AS LOUVER, CONSTANT VELOCITY, HAND QUADRANT, SINGLE BLADE, AND ROUND DAMPERS; HEATING EQUIPMENT DAMPERS; AND HUMIDIFIERS