How do you get started when you re new to the pump and valve business?

The first thing you need to do is to understand the models and characteristics of various water and valves, which is the professional knowledge that you must learn. After that, you have to visit some customers regularly, because after all, it is a strange city, and you don't have any customers, you can learn more from the old salesman, where to go, dig out their needs, and so you have a certain customer base after you just do the maintenance of the old line. Do it well, this is still relatively easy to do.

Now that you are doing e-commerce, you can publish more product information on the Internet, and you need a process of learning and adapting to just entering an industry.

If you are not a manufacturer, you also need to find a few good suppliers, which is also very important.

We are a water pump manufacturer in Hangzhou Main products: sewage pumps, sewage pumps, submersible pumps, stainless steel submersible pumps, tear sewage pumps, cutting sewage pumps, stirring sewage pumps **:

If necessary, you can do it.

To run the project, you can recruit a salesman, it doesn't matter if you are not familiar with the city, you will be familiar after staying for a long time. You can't just wait for business at home, check on the Internet which company in this place uses valves, and then go to run, of course, it is indispensable to have a meal, but there will be gains.

Generally speaking, there will be a series of training for the first time in the company. It will allow you to understand the product knowledge and retrain the knowledge of sales. Pump and valve talent network.

Pumps and valves are not separated, and the two industries can integrate resources to do it together.

The pump is good, and I make the pump.

The functions of the inlet and outlet valves of the water pump are as follows:

Water pump inlet valve: the main purpose is to facilitate maintenance and installation, generally choose ball valves, butterfly valves, gate valves, etc.;

Pump outlet valve: the main function is to adjust the working conditions of the pump, limit the flow, of course, also used as maintenance equipment, the choice is the same as the import, generally in the front end of the valve to install a reverse flow valve (check valve) for use.

Check whether the inlet is fully open before the pump starts, and the outlet is completely closed or slightly opened, so that it can be turned on.

Of course, this rule is not practical everywhere, for small power and small flow pumps, then turn on all of them, start and stop at any time

The pump should be better, many times the pump is the equipment in the bidding, the valve is the accessory, even if you win the bid, the general installation company purchases, the installation company will reduce the price. The pumps are purchased directly from the utility unit.

It is the pump outlet, soft connection, check valve, and gate valve.

The installation sequence of the inlet and outlet valves of the water pump and the rubber expander.

1. The rubber retractor can be used before and after the gate valve, and its function is to absorb shock, to increase and shrink the heat and contraction, and to facilitate the disassembly and assembly of the valve and the need for maintenance; The check valve only needs to be on the lifting pipe behind the pump, and its function is to protect the pump. It is generally installed after the gate valve.

2. The check valve is set in front of the pump, and I don't know what the significance is, but I can't think of it.

3. The actual installation sequence should be: rubber retractor, check valve, gate valve. The pressure gauge should ideally be installed on the outlet of the water pump, but it must be in front of the check valve.

4. The rubber retractor is for vibration absorption. Of course, the connection between the pump and the piping system.

5. During normal operation, the gate valve is not very operable, and the check valve is frequently operated, so the maintenance probability is large, and the gate valve of the pump outlet pipe can be repaired without affecting the normal operation of the system by closing the pump outlet pipe during maintenance.

6. The pressure gauge is installed in front of the check valve, which can prevent the impact and damage of the pressure gauge by water hammer.

7. Some people propose that large-diameter pipes and check valves are installed behind the gate valve for opening and closing, which is unrealistic. Because when the pump is stopped, due to the presence of the check valve, the water pressure before and after the gate valve installed behind the check valve is the same, and there is no problem with the opening and closing of the gate valve. Of course, the large-diameter valve itself is a little more difficult to operate.

In the process of opening the pump, the motor is the largest at the moment of starting, and if the outlet of the pump is opened relatively large, it is easy to burn the motor under the state of large current and large load. In the process of stopping the pump, because the power is cut off first, if the outlet check valve does not work, it will cause the pump to reverse, which is not allowed in the operation of the centrifugal pump, and it is allowed to close the outlet valve for a short time, so the correct way should be to close the outlet first, and then cut off the power, the pump with large flow and high pressure should be in the power outage when it is about to be completely closed, which can play a role in protecting the pump.

Because when the centrifugal pump starts, there is no water in the outlet pipeline of the pump, so there is no pipeline resistance and lifting height resistance, after the pump starts, the pump lift is very low, the flow rate is very large, and the pump motor (shaft power) output is very large (according to the pump performance curve), it is easy to overload, and the motor and line of the pump will be damaged, so the outlet valve should be closed when starting, so that the pump can operate normally.

The purpose of closing the outlet valve at start-up is to reduce the starting current of the centrifugal pump, so as to protect the pump; The outlet valve is closed to prevent the material from flowing backwards and the impeller from reversing. Once the impeller is reversed, the impeller cap is easy to fall off, and the impeller cap falls off, and the impeller also falls off.

The start and stop of the pump is usually controlled by pressure, if it is single, it can be directly used with the pressure switch, and if it is three, it is controlled by the pressure controller (pressure gauge or pressure switch) to the relay signal, and then the relay to the contactor signal.

Landlord, do you want to use valve control or pressure automatic control pump start and stop? If you use a valve to control it, then there is no need to install a pressure controller, the electric valve has a signal line directly connected to your pump control cabinet, and the opening degree of the valve, or a few seconds (time) after the valve is opened to control the start and stop of the pump. ==== Pressure refers to the water pressure in the pipeline, if you want to use pressure control, it depends on what kind of pressure you want to achieve, whether you want to keep it at a pressure point to achieve constant pressure or can be stable within a certain range.

It's all about it. Different controls have different requirements for control cabinets. One thing is for sure, no matter how much you control it, it's best not to connect it directly to the contactor.

Hello, it hasn't been online for the past two days.

Read your questions and follow-ups. Upload an original schematic diagram. Of course, it is not necessary to use a contactor.

The pressure controller is generally with a wire mouth, that is, the thing that is turned on and off through the pressure control switch is screwed on the tube, which can sense the pressure inside the pipe and the switch is turned on and off. Control the operation of the pump.

This includes, there are some special regulations of valves or pumps that cannot be sold, such as safety valves and the like.

Gate valves with large pipe diameters, shut-off valves are packed (cheap old valves), and old pumps are packed. The function is to prevent water and air leakage. Nowadays, many pumps are sealed with pressure springs. The effect is better.

The water pump has a motor and is a power unit that transports liquids.

To put it bluntly, a valve is a switch.

The pump has a water pump and a fan! It is the power unit that drives the operation of the system.

The valve is a breaking device. It is to control the flow of the system.

If you don't know what you can't say, ask me again.

1. The inlet and outlet of the pump should be equipped with control valves, and the outlet should be equipped with check valves;

2. If the water surface of the suction pool is lower than the pump, the inlet of the pump should be equipped with a bottom valve, and at the same time, it should be equipped with pipes and valves for irrigation. Or be equipped with other facilities to fill the water pump.

3. The system of multiple pumps should have a total valve and a contact valve.

4. The corresponding control equipment of the device.

The main equipment used in the pump room is: pipeline, water pump, pump control box, inlet valve, outlet valve, check valve, pressure gauge, underwater bottom valve, water tank, etc., which should be determined according to the design of your pump room, which is nothing more than the subdivision of the pipeline.

Hard-assembled power supply equipment and check valves.

There must be a lot of equipment in this room!