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Why set oil return tube
1.Why set oil return tube ? When there is a large height difference in the piping of the system, in order to prevent the refrigerating oil from effectively returning to the compressor and affecting the service life of the compressor, the oil storage tube must be set on the vertical pipe line. &nb...
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Bad frozen oil ruined a compressor
1.Viscosity of frozen oil:The frozen oil has a certain viscosity to keep the friction surface of the moving parts in good lubrication state, so that it can take part of the heat from the compressor and play a sealing role. The oil works at two extreme temperatures:Compressor exhaust valve tempera...
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Resin processing costs skyrocketed
According to a survey report on the status of members of the Japan plastics industry association from April to June 2018,production and sales increased from January to march.On the one hand, the “upturn” in the amount calculation decreased and the “deterioration” increased...
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How to removing scale in shell – tube condenser
There are three ways to prevent and remove scale: 1. Mechanical descaling method: mechanical descaling is a method of descaling the condenser of steel cooling tube with a soft shaft pipe washer, especially for vertical shell and tube condenser. The operation method: ⑴Extract the refrigerant from...
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Comprehensive knowledge of refrigeration oil
Classification of refrigerant oil One is traditional mineral oil; The other is synthetic polyethylene glycol esters such as PO,Polyester oil is also synthetic polyethylene glycol lubricating oil.POE oil can be used not only in HFC refrigerant system, but also in hydrocarbon refrigerant.PAG oil ca...
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Characteristics of commonly used refrigerants
1.Refrigerant R22: R22 is a kind of temperature, its standard boiling point of 40.8 ° C, water solubility in the R22 is very small, and mineral oil dissolve each other, R22 does not burn, nor the explosion, toxicity is small, R22 searches ability is very strong, and leaks are difficult to find. R...
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10 Common Failures In Refrigeration Systems
Liquid returns 1. For the refrigeration system using expansion valve, the return fluid is closely related to the selection and improper use of expansion valve.Too large selection of expansion valve, too small overheat setting, improper installation method of temperature sensing package or...
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Identify The Quality Of Refrigeration Copper Tube
Copper tubes R410 and R22 The pressure produced by R410a refrigerant is 1.6 times that of R22 refrigerant, which requires high density of copper tube, strong compressive resistance, high purity of copper tube, and uniform thickness of copper tube wall. Therefore, the air-conditioning system of R4...
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What caused poor refrigerating efficiency ?
1. Refrigerant leakage [fault analysis] After the refrigerant leak in the system, the cooling capacity is insufficient, the suction and exhaust pressure are low, and the expansion valve can hear much larger intermittent “squeak” air flow than usual.The evaporator is not frosted or wit...
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Chinaplas 2018
We will attend Chinaplas 2018 Booth: Hall 7.1 D75 Date: 24th-27th April, 2018 Venue: National Exhibition & Convention Center(NECC), Hongqiao, Shanghai, PR China Looking forward to meeting you and your company representative then.
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Happy New Year 2018
Hero-Tech Chiller wish you a joyous new year, happiness and good luck in the future!
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HERO-TECH EXHIBITION IN PHILIPPINES 2017
HERO-TECH EXHIBITION IN PHILIPPINES 2017 We will attend PackPrintPlas Philipines 2017, Time: 12-14 October Booth No.: P22B Venue:SMX Convention Centre, Mall of Asia Complex, Pasay city. Sample chiller——-Air cooled industrial chiller Model:HTI-5A Cooling capacity: 14.5kw Working under ...
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