Shenlong Pump News Center

The vitreous enamel enamel is coated on the metal substrate surface after high temperature sintering, between enamel and metal physical and chemical reactions and mechanical strength of metal bond, on the whole, a surface coating material with corrosion r

Chemical process pump refers to the general name of the pumping raw materials, semi-finished products and products in petrochemical plant. Applicable to oil refining, petrochemical, chemical industry and other sectors of the transport of raw materials, se

Axial flow pump according to the direction of the pump shaft is different, can be divided into vertical, horizontal, oblique type; according to whether the blade can be adjusted to reconcile the different agencies, but also can be divided into fixed, semi

Axial flow pump is a single screw pump with high specific speed, the speed ratio is generally 500~1200. Features are large flow, low head, high efficiency, small size of the pump. Common axial flow of the head is generally 4~15m, there is little more than

As the valve is in the most practical use, for rapid qualitative determination of closure, and in the moment of valve closure, the medium is the direction of flow, with the valve closed, medium speed from maximum back to zero quickly, and the pressure is

There are many kinds of centrifugal pumps, and there are many kinds of classification methods. According to the nature of the transport of liquid, chemical production in commonly used centrifugal pumps are pumps, corrosion resistant pumps, pump, liquid pu

The vane pump is a water pump which enhances the kinetic energy and potential energy of the water through the interaction between the blade and the water flow. According to the shape of the blade and the different direction of the impeller, the impeller i

The valve work in a certain period of time to maintain a continuous and complete given functional requirements, so that the given parameter values to maintain this performance within a prescribed range is called no fault, when the performance of the valve

Measures to improve the effective cavitation margin of the feeding device:

1.Reduce the installation height of the suction device pump.
2.Increase the pressure of the liquid level in the tank before the pump to improve the effective cavitation margi

Valve body and valve cover leakage :

1.High quality cast iron castings, valve body and valve cover blisters, loose organization, slag and other defects on the body
2.Cold cracking;
3.Bad welding, there is a slag, not welded, stress crack and other

Ground source heat pump system: its greatest advantage is very economical, covers an area of small, but must pay attention to must meet the following conditions: water quality is good; the quantity is rich; conforms to the standard.

1. Case of pump,
2.The pump shaft is generally carbon steel, commonly used in steel, 2Cr13, etc. 45,
3.Sleeve
4. Impeller
5. Bearing
6.The mouth ring
7.Seal
8. Oil seal
9.Pump auxiliary seal

Pump is a kind of energy conversion machine, energy conversion process is bound to accompany the loss of energy, and efficiency is a measure of this conversion, how to improve the efficiency of the pump, reduce energy loss? It is necessary to make clear t

Pipeline booster pump is a new type of pump, which is a new type of pump, which is developed to solve the pressure of pipeline. Due to the use of advanced mechanical seal, impeller mounted directly on spindle motor, it has the characteristics of high effi

The power of the submersible sewage pump in general is always increased with increasing flow, popular point is a power curve increase with the rising flow curve, the use of submersible sewage pump will bring about a problem: in the design of sewage pump r

Safety valve is a safety valve, its opening and closing parts under the action of external force in a normally closed state, when the device or the medium pressure inside the pipe increases, exceeds the set value automatically open, discharge to the syste

For a given pump, at a given speed and flow must have the necessary to have the necessary cavitation margin, commonly known as NPSHr. Also known as the pump cavitation margin, is required to achieve the performance of the pump cavitation performance param

China in twentieth Century 60, 70s began to epoxy resin composite was applied to the submersible pump for anti abrasion protection. In 1980s, the composite dragon coating, polyurethane coating and rubber coating were developed. In addition, there are a nu

The mud pump is mainly composed of volute, impeller, shaft, bracket, cover and bearing.

Well standard mud pump:
1.The main parts of the mud pump complete complete.
2.Mud pump all the connection bolts, nuts complete fastening, screws exposed 3 - 2

1.Pump before starting the pump should be filled with liquid filled with enough water, no liquid starting.
2.Close the outlet valve, switch on the power supply immediately after the inspection of the pump must be in accordance with the steering arrow of

Along with the progress of science and technology, the type of pump is also more and more, the industry is also increasingly broad application, each pump with its unique performance and play its unique role, here we look at how the pipeline centrifugal pu

The speed of the motor is determined, which is related to the speed of the pump and the transmission mode, such as the direct drive, the speed of the two should be equal, such as indirect transmission, both of the rated speed has a certain speed ratio rel

The automatic coupling device of sewage pump is a pump and discharge device matched set, mainly by the submersible pump, automatic coupling device, a water outlet pipe, automatic coupling device is installed between the submersible pump and the water outl

1. Reasons: pump is the power is not complete, small horse cart, motor overload long time operation, the motor temperature is too high; the motor start too often fixed for the short-term or intermittent work system of continuous work. Should limit the num

A lot of friends in the choice of pipeline pump products will be asked to choose the vertical pipe pump, pipeline centrifugal pump or horizontal pipeline pump.

The so-called reasonable selection of pumps, is to consider the pump unit and pump station