Using fluorine plastic bottom valve in the pump is what?

Fluorine plastic pump fluoroplastics centrifugal pump, fluorine plastic magnetic pump, fluorine plastic pump has strong corrosion resistance, generally fluoride plastic pump does not have the self-priming performance, at the end of installation using fluorine plastic pump should be installed valve or water diversion irrigation lumen, prevent fluoride plastic pump idling caused damage, so we often mention the bottom valve, bottom valve? Installed in what position? What are the components? A, Bottom Valve by Valve body, Valve cover, Valve, such as parts, gasket seal ring and English name Foot Valve or Bottom Valve, belongs to a kind of check Valve, installed in the water pump suction piping low-end, used to prevent the water in the suction pipe emptying after downtime. Check valves are normally can't bear high pressure, but the pump outlet side of the water back after downtime will produce a lot of pressure, in order to prevent the bottom valve was damaged, some are installed on bottom valve pressure tube. Second, the main application of bottom valve of the filling type centrifugal pump before starting, must be filled with water in the pump to start. The bottom valve is mainly used in the irrigation type centrifugal pump pumping occasions, installed in the inlet line bottom, completely submerged in water. Bottom valve has the function of the check, the water in the suction line to the pump inlet direction, only can't return to the suction pool, need water pump start-up for the first time, later you don't need to infuse water ( In fact due to bottom valve seal, processing quality problem, also need to fill a certain amount of water to start again) 。 Three, self-priming pump need of bottom valve is usually no need of bottom valve, because the general self-priming pump inlet itself with a check valve, which is what we call the one-way valve, this pump after the stop, the liquid in the pump body won't be able to return to their original pool, and stored in the pump body, so there is no need to add a second use filling liquid. If after adding the bottom valve effect will be better, because if sometimes one-way valve damage, and at the end of valve as a safeguard, there will not be idle, and after adding bottom valve can effectively ensure the effective suction pump. Another special case, but if the suction height difference is too big, or aspirating tube diameter is too large, the volume exceeded the self-priming pump pump cavity fluid volume, can't work normally. At this time must be mounted to the bottom valve, ensure the safety of imbibition quickly. Four, valve cover can filter particles, the disc by gravity or gravity + spring pressure to close. Disc with single and double disc and disc type: bottom valve on the valve cover is equipped with multiple water inlet, and is equipped with a sieve, to reduce the clutter of inflows, reduce the blocking probability of bottom valve. Although bottom valve screen mesh with anti clogging, bottom valve is generally applicable clean medium, viscosity and particle through the large medium unfavorable use bottom valve. Bottom valve welding the bottom in the container, in order to achieve the best emptying, cleaning, disinfection effect. 1, bottom valve, can also according to the technological requirements in the process of operation will be working medium good mixing, tank bottom valve as far as possible close to the tank bottom wall, so as to achieve the effect of no dead Angle. 2, bottom valve according to the material can be divided into plastic bottom valve and metal bottom valve, also can be divided into ordinary bottom valve and backwashing water bottom valve. 3, whether from the traffic structure, or from the technological requirements are very ideal, also won't produce turbulence when emptying phenomenon. 4, the bottom valve design is reasonable, advanced manufacturing technology, installation, use, maintenance is convenient. And the advantages of small friction resistance, long service life.
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