Abstract: A multi-segment, heated hose has temperature sensors at or near the outlet of each hose segment. Each hose segment also has separate means for heating a fluid in the hose segment. A heater power controller receives temperature data from each temperature sensor and independently adjusts the power to the heater in each hose segment to obtain and maintain a preselected fluid temperature at the outlet of each hose segment.

Abstract: A heated hose has pressure housings at or near its inlet and outlet. Heat is provided by an electric resistance heater located within the flow channel of the hose. Power feedthroughs in the pressure housings provide fluid-tight electrical power and return connections to the heater. The power feedthroughs may comprise a generally cylindrical body having a central axial bore. A conductor pin is situated within the central axial bore in spaced apart relation thereto creating an annulus. The annulus may be filled with an insulating material such as a ceramic. The power feedthroughs are retained within bores in each of the pressure housings. The bores have a circumferential groove in their inner walls which hold a seal such as an O-ring in sealing engagement with the outer surface of the generally cylindrical body of the power feedthrough.

Abstract: A system for dispensing a plurality of chemicals includes a respective storage tank for each chemical. A respective metering, rotary positive displacement pump is in hydraulic communication at an inlet thereof with an outlet of each tank. An outlet of each pump is connected to a respective discharge hose. At least one heater is in thermal contact with each discharge hose. At least one temperature sensor is provided for measuring a temperature of each chemical in each respective discharge hose. A pressure sensor is provided for measuring pressure at an inlet end and at an outlet end of each discharge hose. A processor is in signal communication with each temperature sensor, each pressure sensor, a metering signal output of each pump and in control communication with each heater.

Abstract: A system for dispensing a plurality of chemicals includes a respective storage tank for each chemical. A respective metering, rotary positive displacement pump is in hydraulic communication at an inlet thereof with an outlet of each tank. An outlet of each pump is connected to a respective discharge hose. At least one heater is in thermal contact with each discharge hose. At least one temperature sensor is provided for measuring a temperature of each chemical in each respective discharge hose. A pressure sensor is provided for measuring pressure at an inlet end and at an outlet end of each discharge hose. A processor is in signal communication with each temperature sensor, each pressure sensor, a metering signal output of each pump and in control communication with each heater.