Shenlong Pump News Center

Submersible pump installation first before the installation of submersible pump carefully calculate the installation height, preferably coupled with a high margin of at least 0.3m, the installation height should be lower than the calculated value. How to

When assembled, all screw threads and nuts are coated with a layer of oil powder. After the last stage impeller is assembled, the axial distance between the two ends of the wheel hub and the wheel hub is measured, and the axial dimension of the spacer sl

Allow suction on the vacuum degree H. Refers to the pump population at the pressure of p; can be allowed to achieve the maximum vacuum. And the actual allowable suction height H. Value is not calculated. But by the pump manufacturer experimental determina

Centrifugal pump installation technology, the key is how to correctly determine the installation height of the pump (ie suction process). For general centrifugal pump, the height is refers to the liquid to the pump impeller center line of the vertical dis

Arc rubber expansion joint installed unreasonable, namely Festival at both ends of the rubber flange unused long rigid connecting bolts, also in spit in the pipeline installation of a tenon type expansion joint and the flanges at the both ends of only fou

Self priming pump has a certain self absorption capacity, can make the pump in the low level of liquid or water suction pump cavity through the impeller high-speed liquid thrown out, reach the purpose of conveying and promotion of liquid.

Many users in the choice of self suction pumps do not understand self suction pump up to the ceiling, the number of meters, marked on the pump nameplate or product specification allowable suction height is refers to the section of the water inlet of the w

The main method have three ways:
1. Change the pipeline characteristic curve
2. Change the centrifugal pump characteristic curve
3. The pump string, and even the way to adjust

Centrifugal pump is a kind of general fluid machine widely used in chemical industry system. It has a wide range of performance (including flow, pressure head and the nature of the transmission medium), small size, simple structure, easy operation, low op

Self priming centrifugal pump has the advantages of simple structure, convenient use and maintenance, high efficiency and become the most widely used in agriculture as a pump, but also because sometimes not Sheung Shui and people feel trouble.

The diving pump before the start should be the necessary checks: whether the normal rotation of the pump shaft, there is no card dead phenomenon; whether or not the normal location of the impeller; cable and cable plugs have no rupture, abrasions and brok

Semi open impeller semi open impeller is divided into the first half open and half open impeller 2. Commonly used before the semi open impeller, semi open impeller with rear cover plate and a blade, the structure of the impeller, the efficiency of the cen

1. Pump speed is too low: check the speed, improve the speed.
2. The system static head increase: check the liquid height and system pressure.
3. The loss of resistance to increase: check the pipeline and check valves and other obstacles.
4. The shell

When using a variety of pumps to the rated speed of the pump itself change speed pump to reduce flow and don't know how to adjust the rotation speed of the centrifugal pump, in fact, adjust the pump speed method, there are many such as can be with invert

The possible reason is: the hydraulic control valve to control the pump may exist without water or do not fill, which requires to open the valve we, to add to the diversion and filled with water; and, perhaps is the bottom end of the valve due to the exis

Control valve, also known as the control valve, through the control unit to accept the output control signal, with the power to change the flow of fluid. Regulating valve is generally composed of actuator and valve. Regulating valve is suitable for air, w

There are some notice things to improving the using life of submersible pump.

We know that the chloride ion in industrial water is a kind of ion which can make metal corrosion, it is mainly manifested in the comprehensive corrosion of carbon steel and corrosion of stainless steel and stress corrosion. Stainless steel valves in a va

Control valve to solve the actual problems of customers series: hydraulic control valve in our actual operation, if the pressure fluctuations, resulting in functional decline, to solve it?

When using a variety of sewage pump, if there is no moorings, sewage pump must use the water level control principle to use, or for example WQ sewage submersible pump in the water drained after not timely stop the pump will be caused by sewage pump water

Whether the submersible pump can be lay down to use? The answer is No. The reason as follow.

Improper selection and operation of the fountain pump is likely to cause vibration. So, what are the potential causes of the occurrence of the fountain pump vibration is how to deal with it? There are four way to adjust fountain pump.

Outlet valve opening degree regulating the pump and the outlet pipeline valve series, its actual effect as the new pump system, the maximum pump output pressure head did not change, but flow curves were somewhat attenuated.

Self priming pump structure of many types, in which molten salt pump, vacuum pump, liquid pump, metering pumps, gear pumps, corrosion resistant pumps, acid pumps, fire pumps flow to the direction of rotation. And then right to water in the backwater hole

To buy submersible pump should pay attention to its model, flow and head. If the selection is not appropriate, will not be able to get enough water, can not play the efficiency of the unit. In addition, we should make clear the direction of rotation of th