Products knowledge
angle globe valve---2009-10-19
Angle globe valve sealed valves are mandatory, so the valve is closed, we must put pressure on the valve flap in order to force the sealing surface does not leak. When the medium from the bottom flap valve into the valve 6:00, the operation force required to overcome resistance, is the stem and the packing of the friction force and the pressure from the media generated thrust force off the valve to open the valve than the force, Therefore, stem diameter should be large, otherwise it will stem the top corner of the failures occurred.
angle globe valve addition to the above-prone faults, the usually have the following breakdown:
1, electricity is not action
cause analysis: power cable connection is bad, power supply voltage change is not permitted within the coil short circuit or burn out.
approach: take a good power cord, adjust the voltage is within the normal range, the replacement coil
га га
2, open valve, fluid can not be
Analysis: fluid pressure, or pressure of work does not conform with fluid viscosity or temperature does not conform with the surrounding mixed spool core and dynamic mixed scale impurities, valve pre-filter or valve guide hole to plug, use the operating frequency is too high or end of life.
approach: to adjust or replace differential pressure, or work product suitable replacement product suitable for cleaning inside the valve must be installed before the filter valve, and timely cleaning filter or valve guide holes, re-election or replacement of new products, product models .
angle globe valve addition to the above-prone faults, the usually have the following breakdown:
1, electricity is not action
cause analysis: power cable connection is bad, power supply voltage change is not permitted within the coil short circuit or burn out.
approach: take a good power cord, adjust the voltage is within the normal range, the replacement coil
га га
2, open valve, fluid can not be
Analysis: fluid pressure, or pressure of work does not conform with fluid viscosity or temperature does not conform with the surrounding mixed spool core and dynamic mixed scale impurities, valve pre-filter or valve guide hole to plug, use the operating frequency is too high or end of life.
approach: to adjust or replace differential pressure, or work product suitable replacement product suitable for cleaning inside the valve must be installed before the filter valve, and timely cleaning filter or valve guide holes, re-election or replacement of new products, product models .
