Circulating units are used
on the primary circuit of solar heating systems to control
the temperature of the hot water storage. The unit gathered
the Circulating Pump; Hose Bibs for Filling and Draining;
Air Scoop and Air Vent; Pressure Relief Valve; Pressure
Gauge in together. |
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1.
Willo-Solar circulating pump
2. Pressure Relief Valve
3. Hose Bibs for filling and Draining
4. Pressure Gauge
5. Flow meter
6. Air Scoop & Air Vent
7. Return temperature gauge ( Chose Use)
8. Pre formed insulation shell
9. Shut-off and check valve (on the back side of
the temperature gauge)
10. Connection kit for expansion vessel (optional)
11. ¾ plug (to be used if no expansion vessel
is installed)
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High temperature expansion
tank for solar heating systems. Compatible with glycol
mixture.
Max. percentage of glycol: 50%
Max. working pressure: 150 psi.
Working temperature range: 32 – 2500F. Max.
Diaphragm temperature: 2150F. Pre-charged.
Pressure: 35 psi.
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1. Construction:
Inner Tank: 1.5 – 2.0mm thickness
SUS316 Stainless Stell structure. Outer Shell:
0.5mm thickness imported colour steel and
aluminum-zinc plated steel, coated with
high-tech corrosion resistant layer.
2. Containment:
High Temperature membrane liner.
Rating 212 F continuous. All penetrations in and
Out of the tank from the top, except for the
Overflow.
3. Insulation:
50 – 60 mm import polyurethane integral foaming
superior heat preservation.
4. SUS316L
or 30428 Food Grade Stainless Steel led by argon are
superior water and quality drinkable.
5. Corrosion inhibitor is added to
the inside of the tank to protect the exterior of copper
heat exchangers.
6. Designs
for Open or closed loop systems.
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System Controllers |
Low Pressure Controller
1. Power supply: 220V AC Power consumption: =6WM
2. Accuracy of temperature measuring: ±2°C
3. Range of temperature measuring: 0°C-99°C
4. Water level classification: Five classes display
5. Power of controlled booster pump or electric heating wire=500W
6. Power of controlled electric heating: =1500W, Optional: 3000W
7. Action current of electric leakage=10mA/0.1s
8. Electromagnetic valve parameter: DC12V, pressurized or un-pressurized valve are available for selection
9. Operating pressure of pressurized valve: 0.02Mpa-0.8Mpa, suitable for supply water directly.
10. Operating pressure of un-pressurized valve : 0.0Mpa, suitable for water-tank supply or low hydraulic- pressure supply
Power on self-test
Water temperature preset
Water temperature indication
Water shortage alarming
Temperature-controlled loading
Timing heating
Low water pressure loading
Dry fire prevent
Water level set
Water level indication
Full water alarm
Water shortage loading
Manual water loading
Timing water loading
Compulsive water loading
Water quality set
Pipe warm preservation
Automatic pressurization
Auto leakage prevention
High-temperature explosion protection
Memory on power failure
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High Pressure Controller
Key Function
1. Preset of water temperature: Heating temperature scope can be preset at 30°C-80°C.
2. Temperature indication of water tank: showing the accurate temperature of water tank
3. Temperature indication of solar collector: showing the accurate temperature of solar collector
4. Manual controlling: it could manually start heating, circulating, temperature preserving at the situation of two patterns.
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NEW PRESSURIZED SPLIT CONTROLLER
Technical Indicators
1. Power supply: 220VAC Power consumption: 5W
2. Temperature measuring precision: ±2°C
3. Temperature measuring scope: 0-99°C
4. Power of controllable circulation pump: 500W
5. Power of controllable electric heating: 1500W
Optional: 3000W
6. Action current of electric leakage=10ma/0.1S
Indication of water temperature
Real water temperature inside the water tank and solar collector is shown at the same time
Heating up-limited
it means off the heating automatically when manual or constant heating to up the temperature
Heating bottom-limited
it means open the heating automatically when the temperature declines to the line at the basis of starting constant heating
Temperature difference up-limited
It can set temperature of up-limited at 5°C-60°C
Temperature difference bottom-limited
It can set temperature of bottom-limited at 3°C-60°C
Timing heating
You could set three times of the function “timing heating” everyday, the time could be precise minute, the temperature scope can be set at 30°C-80°C. Just set the time for “24:00” if you want to shut-off one time of timing heating.
Constant heating
After starting the function of “constant heating”, till the temperature declines to the bottom-limited, then open heating automatically, however when the temperature rises to the up-limited, then off heating automatically.
Temperature difference circulation
When the temperature difference between collector and tank is higher than up-limited temperature difference, starting collector circulation; or it will off the collector circulation.
……….AND MANY MORE
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Circulating Pump
This pump is used for forced circulation of liquids in pipe systems. The main fields of application for these pumps are hot water heating and closed industrial circulation systems. Pumps are equipped with a rotary switch in the terminal box to enable manual 3-speed control. At minimum speed the maximum speed is reduced to approx. 40% - 50%.
Features:
- Type 15 with Rp 1/2 '' port and G1 '' threads.
- Zero-hoisting depth 6m, with blocking current-firm engine.
- Housing from green cast iron.
- Impeller from polypropylene.
- Chrome high-grade steel wave with Graphite sliding bearings.
- Enclosure IP44.
- All rotating parts are immersed in the fluid being handled.
- A shaft seal, being subject to wear and tear is not required
- Fluid lubricates the shaft bearings and act as coolant to bearings and rotor.
- The pump is completely maintenance free. |
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Booster Pump
Product Description
Features:
1) Low noise; This pump adopts shielding assembly (self-cooling and self-lubricating)
2) Environmentally friendly; The pump body is treated by antiseptic electric spray painting
3) The back of the pump body has an exhaust hole
Specifications:
1) Power: 30W
2) Voltage: 220-240V
3) Frequency: 50Hz
4) Input & outlet diameter: 25mm (1")
5) Speed: 2, 280rpm
6) Highest head: 15m
7) Max. Capacity: 52L/min
8) Three-speed
9) Liquid temperature: -10 - 110 `C
10) Environmental temperature: < 40 `C
11) System pressure: <10 Bar |
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Auto Air relief valve
Safety valve to be used in conjunction with High Pressure split systems |
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MTD 8 Eskom approved timer
220 Volt; 50 Hz
16 Amps
Battery backup 100 Hour memory back-up
Timer to be used in conjunction with 2000 W elements
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Magnesium Rod
To assist against the built-up of scale in areas where the water quality are good
Two Types available:
In tank mag.rod for High Pressure direct compact systems
In tube mag.rod for Low pressure direct compact systems |
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