Corrosion resistant mortar pump, also known as slurry pump, filter press booster pump, slurry pump, etc. , not only has also has corrosion resistance, abrasion resistance is the chemical industry for conveying sewage containing corrosion in conveying the commonly used pumps, slurry water pump
adopts half open impeller, booster to the filter press can have very good effect, so some called filter press pump, corrosion resistant mortar pump belongs to a kind of centrifugal pump, do not have self-priming function, flow backward pump cavity before the start, it is well known that the centrifugal pump can be installed before using siphon barrels or bottom valve instead of every time the trouble of filling liquid, then used slurry pump can be installed at the bottom of a valve, slurry pump is a centrifugal pump is a kind of, install the bottom valve is certainly can, but each occasion for bottom valve, anhui gold slurry pump as the corrosion wear resistance, medium with particles or debris.
Bottom valve check backflow effect, so the liquid inside the sundry to deter a bottom valve sealing, in which case bottom valve is not applicable, in the face of bottom valve performance using a detailed introduction, let the user when choosing bottom valve can be used better configuration;
A, the definition of Bottom Valve 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 pump suction piping low-end, used to prevent the water in the suction pipe emptying after downtime.
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, which can achieve emptying, cleaning, disinfection effect.
1, bottom valve, reasonable design, advanced manufacturing technology, installation, use, maintenance is convenient.
And the advantages of small friction resistance, long service life.
2, whether from the traffic structure, or from the technological requirements are very ideal, also won't produce turbulence when emptying phenomenon.
3, tank bottom valve as far as possible close to the tank bottom wall, so as to achieve the effect of no dead Angle.
4, 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, bottom valve can also be according to the technological requirements in the process of operation will be good mixed work medium.
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)
Check valves are normally can't bear high pressure, but the water 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.
Three, self-priming pump need of bottom valve at the inlet of the self-priming pump 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.
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