OSHON Vane Pump VA1-12F-A3
Type: Vane Pump
Brand: OSHON
Type: Vane Pump
Brand: OSHON
Type: Vane Pump
Brand: OSHON
YUKEN Vane Pump PV2R12-65-28-F-RAAA-40
HONGYI Vane Pump 20V11A-1B22R
HONGYI Vane Pump 20V12A-1B22R
HONGYI Vane Pump 35V25A-1B22R
ITAP Check Valve ROMA104-DN15
PROPISTON Overflow Valve SBSG-10
Rexroth Piston Pump A4VSO250DR/30R-VZB13N00
HYTEK Gear Pump HG11-63-25-01R-VPC
IWAYA DENKI Water Pump 25CJT0752
Panasonic Servo Motor MHMF022L1V2M
Honeywell Solenoid Valve VE4025B1045
ROTEN Mechanical Seal 8E5K-22-X
SANDSUN Overload Pump VA08H-760
GS Battery 6-QW-60(450)-(55D23L-KR)
Rechi Compressor 44R273A
MINDMAN Air Cylinder MCQV2-11-40-200
Mitsubishi Compressor YB645WTG
Mitsubishi Servo Motor HC-SFS81BK
Omron Sensor E2B-M18LS08-M1-C1
SMC Solenoid Valve SY9220-5DZ-C8
Schneider Fuse NH-00/000-63A
IFM Sensor O2D107
01/07/2023
Similar to color-ring resistors, color coded inductor solenoid coils use colors to represent different numbers, which can indicate the inductance of the inductor.
06/20/2020
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.
06/14/2020
Application and design of fresh air system in commercial kitchen equipment What is the kitchen fresh air system?
06/14/2020
Working principle of rolling rotor compressor
07/14/2020
How to solve the low-pressure fault during the operation of the chiller? The chiller belongs to industrial machinery and equipment.
07/27/2020
The working principle of air conditioning supplements the fourth and fifth points:<br></br> Compressor<br></br>
06/14/2020
I. Introduction: If the compressor burns down or mechanical failure or wear has caused the inevitable pollution of the refrigerant system, the situation is as follows:
07/06/2022
A proportional control valve is a valve used to control fluid flow rate by varying the size of the flow passage via a restrictor.
08/05/2020
1. What is a heat pump?<br></br> Heat pump is not a water pump, or even a pump, but a complete set of equipment. The English name of heat pump, heatpump, has 2 definitions:
07/03/2020
Post dateJuly 3, 2020 HVAC Centrifugal Compressors market research report provides the details about Industry Chain structure, Market Competition, Market Size and Share, SWOT Analysis, Technology, Cost, Raw Materials, Consumer Preference, Development and Trends, Regional Forecast, Company and Profile and Product and Service.