Heat exchanger industrial air cooler AF0510L-AC220V

Ah0608tl-ca oil cooler hydraulic air cooler ah1417t-ca air cooled oil radiator

 

Hydraulic system with air cooler hydraulic station 3HP/ 2.2kw motor with low pressure variable vane pump hydraulic station air cooler ah1012t-ca /24V/220V/380V air-cooled oil cooler radiator.

 

Air cooled heat exchanger ah0608tl-ca double fan cooler AH0608T ah0607t-ca radiator hydraulic air cooled radiator hydraulic oil cooler aw0607t-ca hydraulic machinery

 

Low temperature: the low temperature of hydraulic oil includes three aspects: 1) low temperature fluidity. 2) low temperature start-up. 3) low temperature pumping performance. The latter two properties are mainly related to oil viscosity at low temperature. Therefore, all kinds of hydraulic pump manufacturers of the factory for the hydraulic pump specified the lowest used hydraulic oil cold start viscosity.

 

Air cooled Dekema aluminum alloy high-pressure air cooler ah1012-ca220v AH1417 ah1470-cd24v

 

Air cooler ah0608t-ca AC220V/AC380V

 

Hydraulic cooler, air radiator, air cooler, air cooling. Ah0607t-ca RISEN hydraulic radiator/sheet air cooler AJ/ ah1012t-ca air cooled hydraulic excavator

 

Aluminum alloy air cooler radiator ah1680t-ca AH1890 AH2431 Aspan818 AH1012 air-cooled ah1012t-ca oil cooler cooler AH1417T air cooler hydraulic station radiator

 

Hydraulic station air cooler oil cooler af0510t-ca 10L air cooled fan air cooled radiator hydraulic air cooler aluminum alloy radiator air cooled oil cooler ah1012t-ca /380V

 

Af1025t-ca,25L/min AH0608T AH0607 AH0510T AH0608TL hydraulic air cooler for hydraulic station

 

Hydraulic system radiator hydraulic air cooler ah0607t-ca AH0608 AH1012 RISEN air cooler/plate hydraulic radiator af1025t-ca/system nc machine tool oil fan

 

Hydraulic oil is the hydraulic medium used in the hydraulic system using liquid pressure energy, which plays the role of energy transmission, system lubrication, corrosion prevention, rust prevention, cooling and so on in the hydraulic system. For hydraulic oil, first of all should meet the hydraulic device in the operating temperature and starting temperature on the liquid viscosity requirements, because the viscosity of oil changes directly with the hydraulic action, transfer efficiency and transfer accuracy, but also the oil viscosity-temperature performance and shear stability should meet the various requirements of different USES. In addition, hydraulic oil to the hydraulic system metal and sealing materials have good compatibility, good filter; It has anti-corrosion ability, anti-wear ability and anti-air entrainment and foaming tendency. Better thermal stability and oxidation stability; With demulsification must be used; For some special purposes, it should also be flammable and not pollute the environment (such as easy to biodegrade and non-toxic). Hydraulic oil can be divided into mineral oil hydraulic oil, synthetic hydrocarbon hydraulic oil, anti-combustion hydraulic oil, clean hydraulic oil, biodegradable hydraulic oil and other types according to its use and characteristics. The following is the basic situation of various types of hydraulic oil: Mineral oil/synthetic hydrocarbon hydraulic oil -- product symbol composition and properties -- China standard reference standard -- HH refined mineral oil, without additives din51517-79 bs4475-75 -- -hl refined mineral oil, and improve its rust resistance and oxidation resistance VICKERS i-286-s HM HL oil, and improve its wear resistance Milacron p-68/69/70 HG HM oil, With stick-slip DIN51524 GB11118.1-94 (Ⅱ) - 1985 HV oil of HM, and improve its viscosity-temperature, polyolefin synthetic oil as base oil NFE48 HS - 603-1983 there was no specific flame retardant synthetic fluid, polyolefin synthetic oil as base oil, flame resistant hydraulic oil is mainly used in metallurgy, mining, power plants, machining industry, such as close to or near fire, heat source of the hydraulic system, divided into water-based hydraulic fluid (HFAE, HFB, HFC) and phosphoric acid ester type (HFDR) and other synthetic (HFDS, HFDU) three. Clean hydraulic oil is used in hydraulic systems with electro-hydraulic teflon valves and other precision components. Biodegradable hydraulic oil is developed to meet the requirements of environmental protection and control environmental pollution. At present, these two kinds of hydraulic oil in China has no formal product hydraulic oil additive formula can be divided into zinc type formula system and ash-free type formula system. Low molecular polyisobutene has good viscosity-temperature performance, mechanical shear resistance and thermal shear resistance, non-toxic, easier to degrade than ordinary minerals, so it is suitable for use as viscosity index improer modulation hydraulic oil.

 

Hydraulic air cooler AH0608 air-cooled oil radiator AF0510/ hydraulic heat exchanger ah1012-ca hydraulic system special air cooler jiuding valve set AW0607 radiator manufacturers direct sales quality assurance

 

AH0608TL air-cooled hydraulic station oil radiator ah0608t-ca dual fan hydraulic air cooler hydraulic air cooler AH0608 air-cooled oil radiator AF0510/ hydraulic heat exchanger ah1012-ca

 

RISEN hydraulic radiator/disc air cooler ah0608t-ca air cooled hydraulic oil system capper hydraulic air cooler af1025-ca AC220V oil tank radiator hydraulic station radiator

 

Manufacturer direct sale aluminum alloy air cooled cooler air cooled hydraulic air cooler ah1417-ca ah1012t-ca oil cooler air cooled cooler AH1417T air cooler hydraulic station radiator

 

Hydraulic station/hydraulic system/hydraulic station 0.75kw / 1.5kw /VP20 pump air cooler control three cylinder ah1012t-ca oil temperature radiator radiator cooling radiator

 

RISEN hydraulic radiator/plate air cooler ah0608t-ca air cooled hydraulic oil system pipe fastener

 

What is the gear pump working principle

 

Gear pump: by two gears meshing together and constitute the pump known as gear pump. It is dependent on the gear tooth meshing space volume change to transport liquid, it belongs to rotary pump, can also be considered to belong to the volume pump. Gear pump type more. According to the meshing mode can be divided into external meshing gear pump and internal meshing gear pump; Gear teeth can be divided into gear pump, oblique gear pump and herringbone gear pump.

 

Gear pump working principle and structure

 

External gear pump is one of the most widely used gear pump, the general gear pump usually refers to the external gear pump. Its structure is mainly composed of driving gear, driven gear, pump body, pump cover and safety valve. Pump body, pump cover and gear constitute a sealed space is the gear pump studio. The shafts of the two gears are mounted in the bearing holes of the two pump covers respectively. The driving gear shaft extends out of the pump body and rotates with the motor. The external gear pump is simple in structure, light in weight, low in cost, reliable in operation and wide in application.

 

When the gear pump works, the driving wheel rotates with the motor and drives the driven wheel to rotate with it. When the meshing teeth on one side of the suction chamber are gradually separated, the volume of the suction chamber increases and the pressure decreases, and then the liquid in the suction tube is sucked into the pump. The suction liquid is divided into two ways and is pushed by the gear in the alveolar to the discharge chamber. After the liquid enters the discharge chamber, as the teeth of the two gears are constantly engaged, the liquid is squeezed from the discharge chamber into the discharge tube. With the driving and driven gears turning continuously, the pump can continuously draw in and out liquids.

 

The pump body is equipped with a safety valve. When the discharge pressure exceeds the specified pressure, the liquid can be automatically pushed open to make the high-pressure liquid return to the suction pipe.