emulsifying homogeizer,paint dispersion machine,mixer,high speed disperser,high shear mixer,high shear emulsifier,car paint mixing machine
Stirring, dispersing when the air absorption stay very little
emulsifying homogeizer,paint dispersion machine,high speed disperser,high shear mixer,high shear emulsifier Chile(Shanghai) Mechanical Technology Co.,Ltd , https://www.chileintelligence.com
Medium and high speed stirring and dispersing can make the material dissolve quickly
Particle change, stable rise and fall, no mechanical loss
Common valve failure and treatment
Common valve failure and treatment: First, the valve leakage: Reason: 1. Body blisters or cracks 2. Body crack repair welding repair: 1. Polished cracks suspected Department, with 4% nitric acid solution etching, if cracks can be displayed 2. Crack at the digging treatment. Second, the stem and nut thread with its damaged or broken stem, stem bending: Reason: 1. Improper operation, the switch force is too large, limit device failure, over torque protection is not moving. 2. Thread with too loose or too tight 3. Too many operations, the service life is too long to deal with: 1. Improve the operation, not too much force; check the limit device, check the torque protection device 2. Choose the right material, assembly tolerances meet the requirements 3. Replacement spare parts Third, the valve cover leakage with the surface: the reason: 1. Insufficient or tight bolt bias 2. Gasket does not meet the requirements or gasket damage 3. Combination of surface defects: 1. Tighten the bolts or make sure the clearance of the cover flange 2. Change the gasket 3. Disintegration study cover sealing surface Fourth, the valve leakage: Reason: 1. Close lax 2. Combined with facial damage 3. Spool valve stem and valve clearance is too large, resulting in spool sagging or poor contact 4. Bad sealing material or cartridge jam. Processing: 1. Improve operation, reopen or shut down 2. Valve disintegration, spool, seat sealing surface re-grinding 3. Adjust the spool and stem clearance or replace the valve flap 4. Valve disintegration, eliminating jam astringent 5. Re-replace or build-up seals five, the valve stem and valve stem separation, resulting in switching failure: Reason: 1. Improper repair 2. Valve core and valve stem corrosion 3. Switch force is too large, resulting in a combination of spool and stem damage 4. Spool stopper washer loose, connecting parts wear and tear treatment: 1. Careful inspection check 2. Replace the corrosion-resistant door rod 3. Operation is not strong switch, or can not be fully open to open the valve inlet pump 4. Check the replacement of damaged spare parts Six, spool, seat cracks: Reason: 1. Poor bonding surface quality 2. Large temperature difference between the two sides of the valve: welding cracks on the place, according to the provisions of heat treatment, car light, and grinding. Seven, valve stem lifting or switching does not work: Reason: 1. Cold too tightly closed when heated or after the full open too tight 2. Packing pressed too tight 3. Valve stem gap is too small and 4. Valve stem and nut with too tight, or with the threaded damage 5. Packing gland pressure partial 6. Door bending 7. Medium temperature is too high, poor lubrication, stem serious corrosion treatment: 1. After the valve body heat slowly test open or open enough and tight time off. 2. Slightly loose packing gland after the test open 3. Appropriate to increase the stem gap 4. Replace stem and nut 5. Readjust the packing gland bolt 6. Straighten the door or replace it. Door rod made of pure graphite powder lubricants eight, filler leakage: Reason: 1. Filler material is wrong 2. Packing gland is not compressed or pressure 3. The method of adding packing is wrong 4. Stem surface damage treatment: 1. The correct choice of packing 2. Check and adjust the packing gland to prevent the pressure from shifting 3. Add packing 4 in the correct way. Repair or replace the valve stem