จำหน่ายเกจวัดแรงดัน Pressure Gauge ทุกยี่ห้อ

ศูนย์รวมเครื่องมือวัดความดัน

The invention of the pump itself was a major breakthrough for mankind. It significantly simplified the supply of normal water. With growing demands for a well balanced water supply, largely clear of pressure fluctuations, and at the same time increasing demands on the power efficiency of buildings, pumps are now making their contribution as booster pumps. What their task is, how they function and what pressure switches do in the process is explained briefly and succinctly in the following paragraphs.
What are booster pumps needed for?
A booster pump increases low water pressure and, with that, improves the flow rate. It provides an extra boost to create the water pressure to the required level. Booster pumps are often used in pipelines to improve the pressure therefore to move the liquid along to the next pump, and also for pumping in residential houses or large commercial buildings. An expansion vessel can extend a pressure booster system. Through the use of this expansion vessel, the water pressure is likewise stabilised and therefore improved.
Booster pumps functioning
The figure gives a synopsis of the various measuring points inside a pressure booster system:
1 Input pressure ? Pressure
2a Dry run protection ? Pressure
2b Dry run protection ? Level
3 Output pressure ? Pressure
4 Pump performance ? Differential pressure
How does a booster pump work?
Booster pumps are selected based on application demands. Instead of selecting one large pump, consider selecting multiple pumps with smaller horsepower. Booster pumps have an impeller that moves water that comes in through the inlet and exits through the outlet. pressure gauge 10 bar makes the impellers spin. The pumps differ in how they draw the water in and push it out. Many of them use a spinning propeller, others use an oscillating diaphragm or other pump principles.
What do mechanical pressure switches in booster pumps do?
The mechanical pressure switches in booster pumps are employed for the direct control/monitoring of safety functions so that you can protect pumps with insufficient input pressure against dry running. An example of here is the WIKA PSM-520 pressure switch.
How do mechanical pressure switches work?
The pressure element of the switch is a resilient bellow which works against a spring mechanism having an adjustable pre-load force. On the spring mechanism you will find a contact arm for actuating the change-over switch contact. The switch is actuated when the force generated by the pressure in the pressure element is greater than the set pre-load force.
Note
Further information on the various measurement solutions which you can expect you for pumps and systems are available on the WIKA website. For those who have any questions, your contact will gladly help you.
Also read ไดอะแฟรม ซีล : How does one set the switch point?
Mechanical vs. electronic pressure switches: Functionality
Further blogs on mechanical pressure switches