Thermal Care Aquatherm rd temperatureController Chiller
Business and Industrial :: Manufacturing and Metalworking
Thermal Care Aquatherm rd temperatureController Chiller
NO RESERVE!!!!! Pulled From Working Service!! Mfg: Thermal Care Model: RA091004Z Year: N/A Features: Aquatherm Model 12RD1hp pump 200-230460V/3/60Approximate weight: 230 lbsApproximate dimensions: 161/2"W x 27"D x 27"Hrd series unit which is a temp controllerThe temperature Range 32dg-F - 260dg-FThe temperature control unit cycles a heater and cooling valve to maintain precise temperature control of the To Process water temperature. Your unit may differ somewhat depending upon the various options purchased; however, the overall function of the unit is fundamental to all our temperature control units. The pump continuously pumps water from the mixing tube through the heater tube and out to the process equipment. The water is pumped through the process equipment at a high flow rate to ensure turbulent flow and efficient heat transfer. Once the water exits the process equipment it returns to the mixing tube. A thermocouple is mounted at the exit of the heater tube to measure the temperature of the To Process water temperature. This temperature is used by the microprocessor to determine if temperature adjustment is required. If the water temperature is below set point, the heater is energized. Conversely, the cooling solenoid or modulating valve is opened whenever the water temperature is above set point. Opening the cooling solenoid or modulating valve allows some of the warm water from the process water circuit to exit through the cooling water out line. At the same time, cool water is injected into the process circuit from the cooling water in line. The replacement of warm water with cool water provides the cooling that is required. The cooling valve is cycled by the microprocessor to allow precisely controlled amounts of cooling water to enter the system. A bypass line is provided to protect the pump from overloading during those times with the process water circuit is shut off. This prevents the pump from a deadheading situation and ensures flow through the pump to keep the pump seal from overheating. A pressure switch is provided to ensure that there is sufficient inlet cooling water pressure to allow the unit to operate without the possibility of steam flashing. A pressure relief valve is provided to vent the process loop if the operating pressure becomes too high. mixing tubes. The pump volute is constructed of cast iron. The 3?4 through 2 HP pumps have stainless steel impellers and pump shafts. The 3 HP through 71?2 HP pumps have an iron impeller with a bronze wear ring in the pump volute and carbon steel shafts with a bronze sleeve covering. All pump sizes use a carbon Ni-Resist mechanical pump seal. All pumps include a pump seal flush line. Heater and Mixing Tube Depending on the options and heater KW capacity of the unit, there will be either two heater tubes or a heater tube and a mixing tube. Both the heater and mixing tubes have been designed to match up to the pump volute casting. The tubes are constructed of cast iron and are designed to connect with the pump volute with two flange seals. Units with 0 KW through 12 KW heating capacity will include a larger heater tube and a smaller mixing tube. Units with heating capacities of 18 KW or 24 KW will have two larger heater tubes and no mixing tube. Heater (not available on RB and RBD units) The heaters are vertical flange mounted with Incoloy heater element sheathing. All units will use one or more 9 KW or 12 KW heater elements. The heaters are energized whenever the microprocessor determines that heating is required. Cooling Solenoid or Modulating Valve The cooling solenoid or modulating valve meters the cooling water required for proper cooling. The valve allows warm water to leave the process loop while letting cooling water to enter the loop. This valve is also used to vent the process circuit during Vent and/or Purge sequences. Pressure Switch All units are equipped with a pressure switch to ensure that the unit will not start until the inlet cooling water pressure exceeds the pressure switch setting. This safety protects the heater and pump seal from potential damage caused by lack of water as well as ensuring that the system pressure is above the vapor pressure of the water to prevent the water from flashing to steam. ...Sold AS IS! More info?? email me ross1@charter.net | ||||||||||||
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