extend the life of gate valve
In our experience, to extend the life of the Gate Valve, should be concerned with the following several points.
(1) master gate valve concrete pump type by using conditions and according to
strictly apply the rules of
Gate valve door when working directly on the
pipeline in the shearing of the concrete, although the door is made of high wear
resistance, high strength parts, but can not afford the enormous impact, So do
not let the iron bars, super hard stones and other debris fell into the hopper
to prevent the broken door. In addition, door gate valve when pumping concrete
for high rise buildings suffer from any back pressure inside the concrete pipe,
allowing door to increased wear, difficult directional control valve gate. So
try not to use the transmission gate valve over 60 million concrete buildings,
extend the life of gate valve.
(2) the timely maintenance of Gate Valve concrete pump, maintaining the
smooth flow of road lube oil
Because the door seal material of Taoist valve
and consumes relatively more fat, if the road should always check the
lubricating oil free, such as blocking, time must be after pumping concrete to
avoid injury to the guide bar. Finished concrete pump must be discharged after
completion for a while at a time, until the maximum points of lubrication grease
and residual approach until the mortar compresses.
(3) adjusting the clearance
Gate Valve on the cylinder, temporary
accommodation while traveling, the two set screws, can be used to position the
door to prevent the impact of the tower upper and lower seats, delaying its
wear. Door after wear, the gaps between the door and seat, you can adjust the
door cylinder piston valve to adjust the distance between the beam and the
piston stroke to eliminate the gap, the normal object usage the screw.
(4) the timely repair
After a period of time after the use of gate valves,
appear on the upper and lower seats deep dents, electrode patches available at
that time, the grinding and grinding until you can continue using it. After
prolonged use, the door will taper off, thin, if you wish to continue using the
hand wheel door fixed so that its line with the valve seat and the divisions and
adjust the clearance between shell and copper on shelves, long periods. Because
of hydraulic cylinders piston-cylinder-gate valve, prolonged use may cause oil
temperature is too high, causing damage to the seals on the piston, resulting in
the inability of the valve seat. At the moment, please replace the seals on the
piston.
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