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Figure (11)
4.13 About pneumatic reversal system
The reversing mechanism of the booster pump consists of a set of mechanical valves and main valves. The
changeover of pneumatic path is realized by the contact and separation between particular components of
the pump and the mechanical valves. The relative position among various components of the reversing
mechanism is secured by the machining precision and no adjustment is needed once the assembling is
completed. The pneumatic path interfaces and the connection pneumatic pipes are identified by colors.
During assembling and maintenance, use pipes of matching color to join the pneumatic path. This
mechanism is flexible and reliable in movement, has a low defect rate, and is easy to install and service.
4.14 About large volume and portability of the equipment heat preservation pipe set
Figure (12) shows the winding up of heat preservation hose set by JHPK-H30 main machine. On the left part,
the protruding part of the horizontal booster pump and the protruding tube of the main machine stand
form a spatial support, on which the heat preservation hose set may be wound. On the right part, the
protruding tube of the stand, the front curved guard ring, and the guard on the right and left wheels
together form a spatial support, on which the heat preservation hose set may be wound. With either
method, this equipment is able to receive four sets and up to 15m standard heat preservation hose.
Figure (12)
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