Seal packing precautions before installation, how to choose a suitable packing?
A seal packing precautions before installing what?
Sealing Packing Precautions before installation:
Remove old packing stuffing box is pre-installation inspection to prepare the point.
With the old filler filler before the first use special tools to remove all the stuffing box clean
Observe the various parts of the stuffing box without injury eccentricity defects, damage of the stem, bushings and packing stuffing box can affect performance.
Check whether other components can also be applied. Replace all damaged parts.
Second, how to choose a suitable packing?
How to choose the right packing? Packing must be considered in the selection of the two things.
① conditions required performance should be consistent with the packing. According to the relevant technical data to select the most able to meet the requirements of packing.
② sealing requirements must be based on the correct choice packing size. To determine the cross-section, please use the following formula estimates:
Cross-section = (stuffing box diameter - stem diameter) / 2
The apparatus of injury may need a larger cross-sectional packing, in order to compensate for damage.
Third, cutting and sealing packing installation pay attention to details
Cutting and sealing packing installation pay attention to details