Bladder Tanks For Water Pumps
The PHYM series pressure proportional mixing device has the following obvious characteristics: the configuration and design of the main flow components such as the main pipe, nozzle and throttling hole plate of the proportional mixing device assembly are reasonable and accurate, and the pressure drop of the whole device is only 0.01~0.04MPa measured by the national fire detection Center, which fully meets the requirements of the national standard GB20031-2005. Whether it is 3% foam liquid mixing ratio or 6% foam mixing ratio, it can ensure accurate proportion and excellent performance.
Description
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Bladder Tanks For Water Pumps
Instructions for Bladder Tanks For Water Pumps
Close drain valve, open water chamber outlet valve, drain valve,capsule exhaust valve. Open the flange cover. Fill the capsule with foam by hand pump. Filling foam should be carried out slowly, too fast, will cause foam splash, can not be filled. The capsule can also be filled with foam from drain valve using an electric filling pump.
When the foam liquid overflows from capsule exhaust valve, it can be considered that the foam liquid has been filled, and the capsule exhaust valve is closed.
When testing the water, open the water chamber outlet valve, open the inlet valve, through the pressure water, when the exhaust water chamber outlet valve can be closed after spraying water, so that the storage tank in the standing state. All valves of the equipment should be closed at normal times.
Method of supplying foam mixture
When the fire pump is started and there is pressure water in the pipeline, open the inlet valve 3.
Adjust the opening of the outlet valve of the system to make the pressure gauge display reach the rated working pressure of the foam proportional mixing device, and stabilize at a certain value.
When the pressure water enters the tank and the pressure rises to the working pressure, the outlet valve can be opened, and the foam mixture will automatically adjust to 6% or 3%, and the foam mixture will begin to output to the system.
When stopping the liquid supply, the outlet valve should be closed first to prevent the pressure water from pouring back into the foam liquid rubber sac, and then close other valves, while stopping the pump, stop working.
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