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The use of gear pumps and precautions
Use a gear pump as follows:
1.A gear pump and the pump motor must be checked in the case before use. For example , the availability of stuck and inflexible ; fillers are tight ; each component is securely connected ; lubricant ( grease ) is the right amount and so on. Especially important is the need to open the discharge valve and the exhaust valve on the tube before the start of the road .
2.gear pumps prohibit the discharge valve closed during operation . Enjoy because it is a liquid is almost incompressible. Startup and operation closed discharge valve , pump or pipeline will hold bad motor may burn out .
Should be used in the operation , " listen to the sound , watching the meter , mold temperature " approach to keep track of two ashamed case, while the ministries to ensure good lubrication .
3.the flow control gear pump is mainly used to adjust the bypass valve open primary .
4.prohibiting the discharge valve closed . Gear pump at start and stop the pump , close the discharge valve will hold back bad or burn motors. For safety, the pump is equipped with a safety valve in addition to the door, is also installed in the pump pipeline with a reflux tube, a reflux tube to open the valve when actuated to reduce the load of the motor.
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