Sprinkler maintenance
1, the requirements of water
When the sprinkler uses the river ditch or pond as a source of water, pay attention to that all the ends of the suction pipe are not in the water. Should choose a relatively clean water source, avoid inhaling stones or more sand, drift debris, and easy to plug the filter. If the water source is shallow, it is necessary to dig up the water absorption area in advance so as to ensure that it does not contain impurities and air.
2, plus water diversion
 When the sprinkler self-priming pump is used for the first time, it needs to divert water. If you are not idle for too long, you do not need to divert water. Old centrifugal pumps have been drained every time and have been eliminated by most manufacturers.
3, the inlet pipe must be vacuum
 When the sprinkler is absorbing water, the inlet pipe system must maintain a certain degree of vacuum in order to draw water into the tank. The inlet pipe system must be sealed reliably, the hose must not be damaged, and the hard pipe must not be cracked.
4, parking stalls
  Before the water sprinkling vehicle or water sprinkling, the power take-off device must be parked. Slowly loosen the clutch during gearing to avoid possible damage to the power take-off.
5, winter water
Before the advent of winter, the water in the sprinkler pumps and pipes should be vented to prevent freezing. Therefore, after the watering is over, the water in the water pump and the water pipe will be drained immediately to prevent future troubles. The water pump is equipped with a drain switch.
6, watering precautions
 The front sprinkler of the sprinkler is located at a lower position and close to the ground. The spray pressure is relatively large and is used for flushing the road surface. The position of the rear sprinkler is relatively high and the sprinkler surface is wider for watering the construction. When simply using the rear nozzle, the front nozzle should be closed to achieve better results.
7, lubrication and fastening
 During the use of the sprinkler , lubrication points of the transmission assembly must be regularly lubricated, and the joints are often tightened to ensure normal use.
8, regular sewage
 There is a filter setting at the sprinkler valve. After a period of use, it should be regularly cleaned and the sludge in the filter should be removed. Otherwise affect the pumping.
Introduction:
Water Chiller is a mechanical device used to facilitate heat exchange from water to a refrigerant in a closed loop system. The refrigerant is then pumped to a location where the waste heat is transferred to the atmosphere. In hydroponics, pumps, lights and ambient heat can warm the reservoir water temperatures, leading to plant root and health problems. For ideal plant health, the water chiller can be used to lower the water temperature below ambient level; 68°F (20°C) is a good temperature for most plants. This results in healthy root production and efficient absorption of nutrients.
In Air Conditioning , chilled water is often used to cool a building's air and equipment, especially in situations where many individual rooms must be controlled separately, such as a hotel. A chiller lowers water temperature to between 40° and 45°F before the water is pumped to the location to be cooled.
With Environment friendly refrigerant R407c/R410a/R134a.
Water chiller series:
1. Air cooled water Mini Chiller . Cooling capacity 20kW/25kW/30kW/35kW/40kW/50kW. With scroll compressor.
2. Air cooled water moular chiller. Cooling capacity 60kW/100kW/130kW/200kW/260kW. With scroll compressor
3. Air cooled water screw chiller. Cooling capacity 150kW/ 180kW/250kW/320kW/380kW/430kW/ 500kW/ 570kW/ 640kW/700kW/760kW/870kW/930kW/1000kW/1180kW. With screw compressor
4. Water cooled modular chiller. Cooling capacity 80kW/120kW/140kW/160kW. With scroll compressor.
5. Water cooled screw chiller. Cooling capacity130kW-2500kW. With screw compressor.
6. Low Temperature Water Chiller. Unit achieve optimum performance at ambient temperature as low as -25℃.
7. Industrial Water Chiller, such as Glycol water chiller, Dairy Water Chiller, Brine Water Chiller etc.
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