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0 Answers What do these instrument cost for both new or used?

We really are only looking for the Lithium testing.

Reply to BLightfoot
Siemens - RAPIDChem 744/754
RE: Siemens - RAPIDChem 744/754
2 months ago

Axial piston pump

0 Answers Axial piston pump

Analysis of several common faults and causes in the use of axial piston pump

After working for a long time, or improper operation and maintenance, the axial piston pump often fails. Now Hengyu hydraulic briefly introduces several common failures and causes analysis of the axial piston pump.

1. Insufficient output flow or no oil at all: large suction resistance or air intake; poor bearing capacity of shaft; damage of return spring or return plate; dirt between port plate and cylinder block; damage of plunger or plunger plug hole; wrong position of variable mechanism; too high oil temperature; poor assembly. 2. The pressure is not raised or not at all: the above-mentioned insufficient flow may be caused; the variable mechanism is not adjusted properly; other reasons. 3. Large pump noise and pressure fluctuation: air intake; inflexible movement of variable piston; too small angle of triangular groove; small rigidity of variable mechanism; loose fit of sliding shoe and ball head; large leakage of variable mechanism. 4. Pump heating and high oil temperature rise: the piston and plug hole, the junction surface of port plate and cylinder block are worn, with large leakage; the movement pairs in the pump are seriously worn and roughened, with low mechanical efficiency; the pump has small eccentricity or low working pressure; the oil viscosity is large, the oil tank volume is small; the bearing is worn, and the transmission is stifling. 5. Serious oil leakage of leaking oil pipe (internal and external leakage): wear of cylinder block and port plate, plunger and plug hole; wear of variable piston, resulting in leakage; damage of joint seal; oil leakage of oil seal. 6. Pump can not rotate: plunger stuck; slide shoe off; ball head broken; return disk broken; cylinder and port plate sintering; 7. Variable mechanism failure: the arc surface of variable head bearing bush is seriously worn; the control oil channel is blocked; the variable piston is stuck; the control valve spring is damaged; the variable mechanism leaks 8. Wear or burn out of mating surface between port plate and cylinder body: dirty oil; no oil in the pump during startup; insufficient hardness of port plate; poor material of cylinder body; high temperature and high pressure deformation of port plate; poor coaxiality of bearing hole and transmission shaft in pump housing; too large mating clearance between cylinder body and bearing; too small clearance between drive shaft spline mating; the valve plate and rotation center are not vertical; the transmission shaft is bent; matching The high and low pressure transition area of the flow plate is seriously trapped in oil. 9. Wear or burn out of joint surface of slipper and swashplate: oil pollution; plug of damping hole of plunger or slipper; insufficient hardness or machining accuracy of swashplate; inconsistent thickness of slipper shoulder; insufficient accuracy of hydrostatic bearing on slipper surface; small plane of plunger ball head.

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Reply to hhm1020
0 Answers While switching on instrument giving 0x0D1C error.I have checked power supply's voltage and getting 12V, 15V and 28V. These voltages are correctly getting , but giving error 0x0D1C error

EPPENDORF - Mastercycler pro
RE: EPPENDORF - Mastercycler pro
2 months ago

Purchase Price

0 AnswersWhat would be the purchase price for the POCKETCHEM" BA PA-4140? Also, do you supply the test strips? If so, what is the cost? Thank you!
Reply to Kimy
2 months ago

LVT 11+ Pro

0 Answers Hi,

I have a problem with an LVT viscometer. I have very recently got the machine calibrated externally and this passed. Unfortunately over the last few days, I am getting unusual readings eg the readings are not passing 900cps although the viscosity is visually much higher. Please advise.



Reply to katc
RE: Viscometers
0 Answers

The starting relationship between fire control room and fire hydrant action button is related to the starting form of fire hydrant pump. The starting mode of fire hydrant pump is generally divided into two types. The first one is under the bus system joint control mode. The starting of fire hydrant action button can send its required starting signal to the fire control room console through the linkage interface module next to the fire hydrant, and then output the switch contacts that enable the fire hydrant to start. The second starting mode is to directly output the switch value contact of the fire hydrant action button to the fire hydrant pump starting box. These two starting modes can be used in the actual design. The former mode saves wiring, but it is necessary to program the address code of the fire hydrant linkage module under the bus system to achieve the purpose of monitoring a large number of fire hydrants. The latter one is simple and reliable, but it also needs to return the fire hydrant action signal to the fire control room. The designer can choose according to the actual scale of the project in the specific design. The former start-up method can be used for large-scale projects and complex building forms, and the latter start-up method can be used for small-scale projects.

The self start of the spray pump is to break the glass ball of the pipe network nozzle in each protection area under high temperature, which causes the flow of water in the pipe network, thus the linkage alarm valve pressure switch acts, so as to achieve the purpose of self starting the spray pump. Through the water flow indicator linkage module or alarm valve pressure switch lead to the control room, the fire control room can accurately reflect its action signal, and the control room should be able to directly control the start and stop of the spray pump

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Reply to hhm1020
0 Answers I am Pradeep I will help you to find out one the Best Outsourcing Company in India. So that's name is Job Outsource India. It is one of the best leading outsourcing companies in India and I hope it is full fill your every business requirement every easy and lovest cost, so go and try one time.

Reply to Job Outsource India
2 months ago

G7167, 1290 MLS

0 Answers I have a 1290 MLS, G7167 multi-sampler that will intermittently stop in the middle if the SS/run. The sample tray usually gets stuck inside the chamber and will not return the sample tray or the needle will get stuck in the vial. I have firmware 7.20 installed, lubricated the transport assembly and replaced needle/needle seat. Any suggestions? Can the transport assembly be replaced? Thanks for any feedback.


Reply to aiservices
Agilent Technologies - 1290 Infinity Multisampler
RE: Agilent Technologies - 1290 Infinity Multisampler
0 Answers hello, i need to identify what this error means. any help will be appreciated!

Reply to jgrimm119
Leica Biosystems - CM1850
RE: Leica Biosystems - CM1850

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