Flow-through faucet, water dispenser with
automatic draining into the sewer (thermostatic faucet)
intended for controlling the technological process of liquid dosing with the display of information about the dosing process and temperature on the indicator. the dispenser can be used in the bakery and confectionery industry, in the production of
semi-finished products for supplying water to the dough mixer (testomes).
the dispenser is made of imported components: - temperature and dose controllers - tork electromagnetic valves; - thermostatic mixer of the firm korfgescheit.
the temperature is set by turning the handwheel of the thermostat and is visually reflected on the temperature controller panel. During dosing, the controller monitors the temperature of the water at the input to the pulse dose counter and, upon reaching the required temperature, drains the water into the sewer (the solenoid drain valve is open, and the dose valve is closed). when the required water temperature is reached, the drain valve closes, and the dose valve opens, dosing begins. the dose is set on the dose counter controller (on the shield on the left).
the device consists of a control panel with a digital volume and temperature indicator, control buttons, a keyboard that has anti-reflective properties, is resistant to abrasion and aggressive media, as well as a dosing unit with a water meter, a solenoid valve, an energy-independent thermostatic mixer, and a remote temperature sensor. when the power is turned off, all settings are saved in the non-volatile memory of the device. in the event of interruptions in the supply of electricity during the operation of the device, it is possible to continue
drain water even after turning on the power. the design of the dispenser uses a unique thermal mixing valve kopfgescheit, which eliminates the need to adjust the temperature of the mixed water. it is enough to adjust the temperature of the outgoing water once. if the pressure of hot or cold water suddenly decreases in the water supply system (in the water supply), then only a change in pressure will be output, and the temperature of the water will not change, when the water supply is turned on, the mixer will immediately deliver water of the set temperature. the principle of operation of thermostatic mixers: the pressure of one of the mixing components (cold or hot water), which is set by turning the mixer handle, pushes the valve that regulates the flow of the second component. the ratio of components is determined when choosing the required outlet temperature and is maintained by a thermostatic valve so that the temperature of the outlet water is constant regardless of the water pressure that opens the valve. springs, pistons, bimetallic plates, valve channels are selected so that in a wide range of water pressures it is possible to maintain the same temperature at the outlet of the mixer. its basis is a special mixing valve controlled by a special cartridge consisting of bimetallic plates sensitive to temperature fluctuations, to which it responds by expanding or compressing. the temperature value is set on the mixer by simply turning the handle rotating on the graduated scale. for the proper operation of the mixer, it is necessary to connect it to the water supply system precisely, otherwise, if you confuse hot water with cold, you will get water coming out of the mixer (if it flows), the temperature of which will change arbitrarily.
the thermostatic mixer is implemented with built-in non-return valves, which completely prevents mixing of water in hot and cold water supply systems at different water pressures, with a difference of up to 0.1 MPa.
technical characteristics:
maximum flow, m3/time 6
nominal flow, m3/time 3
range of temperature adjustment by mixer, degrees 20...50
price of flow meter impulse, liters 0.25
(//tractor-service.com)
supply voltage, in 220
supply voltage of the electromagnetic valve, in =24
water pressure in the network, bar 0.6...16
range of water temperature at the entrance, degrees: - cold 5...29
- hot 50...80
pipe length, mm 15, 20, 25
the measurement error of the rotary counter is 4 pulses per liter (25 ml per liter)
working temperature of ambient air, degrees +10...+45
relative air humidity, no more than % 80
atmospheric pressure, kpa 87...107
print version