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High Temperature Water Heater STM-PW

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STM-PW series water heaters have both standard and high temperature models, which are used to heat up the mould and maintain temperature, they can be used in imilar applications as well. High temperature water from the mould is returned to the cooling tank and cooled by either indirect cooling (For high temperature and high temperature plus pressure models) or direct cooling (For standard models). It is then pressurised by the high-pressure pump, sent to the heating tank and finally to the mould with a constant temperature. The OMRON temperature controller can ensure an accuracy of ±0.5℃

Features

  • The max. working temperature can reach 1806
  • P.I.D. multi-stage temperature control system can maintain a mould temperature with an accuracy of +0.5&.
  • 7-day automatic start/stop timer supports the conversion between Chinese and English, and and ”F
  • When a fault occurs, this machine can automatically detect the abnormality, with failure display function
  • High voltage protection, safety pressure release, automatic water supply and exhaust function
  • Adopt indirect cooling that can control the temperature more accurately, and achieve high heat exchange efficiency with the water’s low viscosity property
  • Built-in magnetic pump without leakage.
  • RS485 communication interface achieves centralized monitoring with the host
  • Equipped with water level probe and high-pressure plunger pump that could accurately detect the water level, and refill for high-pressure system as to avoid pipe dry burning
  • Standard equipped with the buzzer

Working Principle

High-temp. water from the mold turns back to pump inlet through the pipeline and is sent to the heater by pump pressurizing, then it gets into the mold after heating by pipe heater, and so on. During the process, if probe detects the water level drops to the set value, the machine will start plunger pump to refill the water for 30 secs., and it will shut down to alarm if the water is still at low level.
If thehigh-temp. water is too high, the system will start the cooling solenoid valve, and the cooling water will enter the double-tube structure to cool down the high temp. water, so that it can maintain constant water temperature. If the water temp. is still high and gets to the set EGO temperature, the system will sound alarm and stop. When system pressure is higher than the high-voltage switch set value, the machine will automatically release the pressure. If the pressure continues to rise to the safety valve set value, the mechanical safety valve opens to release the pressure of the system.

Application

STM-PW series high temp. water heaters are mainly used for mold heating and mold temperature main- taining. Besides, it is also applicable to fields with other similar demands.Compared with the STM-W water heater, this series is able to meet wider production demands under higher heating temperature (180 C) condition. Besides, there are many options and accessories for this series of machine that can meet different production demands.

   

Specifications