SANWO Check Valve SAS2000-01

09/19/2025

What is the Difference Between Piston and Plunger Pumps

Plunger and piston pumps are very similar in construction and both are reciprocating positive displacement pumps.

06/20/2020

What are the causes of air conditioning trip

What are the causes of air conditioning trip 1. The contradiction between the rated current of the air conditioner and the current carrying capacity of the wire. 　　Here are two formulas involved: 　　①The rated current of air conditioner I=P÷U ÷power factor, the power remains unchanged, the smaller the voltage, the greater the current required. 　　② The current carrying capacity of the wire I=U÷R, the voltage is proportional to the current. 　　 So when the power supply voltage is normal, we must consider the line voltage drop. The longer the line, the greater the resistance, the greater the voltage drop, and the smaller the output current at the end. However, because the power of the load remains unchanged, the voltage becomes smaller, and the current that needs to be output will be larger. At this time, the wire is forced to overload, and the time will cause heating, and eventually cause the tripping of the open circuit. 　　 Some friends said that the heat of the wire will not cause the tripping of the circuit breaker. In fact, the manufacturer of the air switch has made it clear in the relevant manuals that the heat of the wire will cause the air switch to trip. Because the wire heats up, the crimp terminal will also heat up, and the resistance will become larger and larger. The larger the resistance, the greater the current consumption, and the hotter it will be, a vicious cycle. 　　 2. Leakage 　　During the daily maintenance work, we will encounter the situation that the air circuit trips due to the leakage of electricity. At least I have not experienced it once or twice. Regardless of the leakage of the neutral line or the leakage of the live line, a long time will cause the circuit breaker to trip. 　　Why does the electric leakage cause the MCB to trip? There are two situations. 　　 ① Good grounding. At the beginning, the leakage current was not large, and as time went by, the leakage current became larger and larger, and eventually evolved into a short circuit to ground, unable to close. 　　②There is no ground wire. If the equipment is not connected to the protective ground, when the wire leaks to the equipment, it is equivalent to adding a large shunt resistance. Like this problem, if the air conditioner does not have a ground wire, when the wire leaks to the air conditioner, the air conditioner is a very large shunt resistor and will consume a lot of current. Eventually, the wire will heat up or trip open. 　　How to determine whether the trip caused by the above two aspects can be done with a clamp ammeter. 　　 ① Measure the voltage at the input and output to see if there is a significant change in voltage drop. 　　②Measure whether the output current exceeds the standard. 　　 So my suggestion is: first measure the supply voltage to see if it is within the allowable fluctuation range. Then measure the current to see if it exceeds the rated ampacity of the wire. Finally, check the data one by one according to the measured data to find out the reason.

07/23/2021

How to Maintain Your Screw Air Compressor?

The screw air compressor adopts a single power connection and compressed air connection, and a built-in cooling system, which greatly simplifies the installation process.

01/08/2021

The relationship between the start of the compressor with liquid and the migration of refrigerant and the solution

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03/29/2024

What Are the Components of Industrial Robots?

Industrial robot is a multi-joint manipulator or multi-degree-of-freedom mechanical device widely used in industrial fields. It has a certain degree of automation and can realize various industrial processing and manufacturing functions.

08/19/2020

Common mistakes in daily operation of industrial chillers

The operation of the industrial chiller system works through three interconnected systems: refrigerant circulation system, water circulation system, and electrical automatic control system.

06/29/2020

What is the cause of compressor pipeline vibration

12/20/2024

Daikin Vs. Toshiba Air Conditioners

Daikin in Japan has always maintained the first market share, is the world's only multinational enterprise integrating the air conditioner

08/02/2020

Do you know the key "3, 5, 8" in the installation of central air conditioning fluorine system?

Central air-conditioning creates a high-quality home life for us. Before installing central air-conditioning, we must make preparations for purchase, design and installation in advance, so as to be well aware of and avoid blindness.

06/06/2024

Hydraulic Solenoid Valve: Components, Working Principle, Functions, and Types

In hydraulic systems, hydraulic solenoid valves play a vital role as control components. This article will introduce the components, functions, working principle and common types of hydraulic solenoid valves.