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Water flow switch controller for circulation booster pump 1/2″,3/4″,1″,1.2″,1.5″ and 2″,automatic on/off,AC and DC type,stand high temperature

Sell water flow switch controller,exported by China manufacturer.Work with circulation booster pump,thread1/2″,3/4″,1″,etc.Stand high temperature.Auto on/off.AC220V, DC12V, DC24V, DC48V,DC110V.No leaking.Model HT-60,HT-120,HT-200,HT-800,HT-801,HT-802,HT-2010.Support different pump power from 90W to 2000W.Also used for turn non-automatic pumps to become automatic pumps,applied to laser engraving machine, laser cutting machine, and other equipment with cooling system, circulation system,etc.Factory direct-sell.

Function: This water flow automatic switch allows the water pump to start automatically when the faucet is turned on, and stop automatically when the faucet is turned off.This flow switch enables the water pump to automatically stop and turn on.

  • For water and similar liquids with similar physical and chemical properties. Liquid pressure: ≤0.6Mpa and temperature: ≤100℃;
  • Wide range of connector thread,1/2″,3/4″,1″,1.2″,1.5 inch,2 inch;
  • Support pump power from 60W to 2000W;
  • Available for AC220v and DC12V,DC24V,DC0-110V.
  • Place of Origin: China
  • Sell to worldwide, Ship by air plane or by sea boat;
⭐⭐⭐⭐⭐ The item is liked & shared by worldwide clients:

Models  and how to select a “Water flow switch controller for circulation booster pump”?

The automatic on/off water flow switch for pump, also known as the inline water flow sensor switch and the water pressure switch, is an automatic switch controller that uses a magnetic induction device to control on-off of the circuit, thereby realizing the start or stop of the controlled pump. The water flow switch controller is not a water pump and it  itself does not have a pressure boosting function,must work by connecting circulation water pump to drive water to flow .

Model A: Standard Water flow switch controller (water flow sensitivity couldn`t be adjustable).

standard water flow switch without function of adjustable sensitivity

Water flow switch controller for circulation booster pump thread 1/2″ to 2″,support high temperature 836

Model A Standard type has following size available options:

Water flow switch controller size and parameter options with code Model HT-60,HT-120,HT-200,HT-800,HT-801,HT-802,HT-2010.Support different pump power from 90W to 2000W.

  • The power selected of the water flow sensor switch can not be less than the power of your water pump, you can buy a larger power switch. If the water pump is used in a hot water environment, it is recommended to buy an upgraded version which can support high temperature.
  • Note that the start requirement of this water flow switch:
    1, the inlet pressure should be greater than 0.2bar (Kg);
    2, the water flow speed should be greater than 1.5L/min (LPM);

Model B: Water flow switch controller for circulation booster pump with adjustable sentivity.

Water flow switch controller with water flow sensitivity adjustable

Structure of Water Flow Switch type B of flow sensitivity adjustable

Model B Water flow sensitivity can be adjustable,its available size options as following:

Water flow switch with water flow can be adjustable

  • How to select the power water flow swich?  The power selected of the switch can not be less than the power of your water pump, you can buy a larger power switch. If the water pump is used in a hot water environment, it is recommended to buy an upgraded version which can support high temperature.
  • How to operate water flow switch with sensitivity adjustabl? See below:

How to operate water flow switch with sensitivity adjustable?

The sensitivity of the water flow switch is pre-adjusted when leaving the factory.They are suitable for most environments. Sometimes,if they are installed in special environments,they can not be used normally, then the sensitivity screw can be fine-tuned to achieve normal use.

When not starting, turn clockwise to the right and increase the sensitivity. When not stopping, turn counterclockwise to left to lower the sensitivity

Notice: When the faucet does not come out water, the sensitivity adjustment is no effect.

Difference between “normal temperature type” and “high temperature type”?

The difference between normal temperature type and high temperature type water flow switch

In addition to the different internal controlling components, the most intuitive difference between the two types is whether there is a thermal insulation brass cap.
1. Normal temperature type: (0-40 ℃) can be used for a long time, and the maximum temperature in a short time should not exceed 60 ℃.
2. High temperature type:(0-80 ℃) can be used for a long time, and the maximum temperature in a short time should not exceed 100 ℃.
For heating pipes or solar pipes, please choose high temperature type.
Both types are good water-proof perofrmance,no leaking in long working time.

Where to use the “Water flow switch controller for circulation booster pump”?

The automatic water flow switch is widely used on heating boiler system,water heater device,solar water heating system,water pump retrofitting,laser engraving machine, laser cutting machine, and other equipment with cooling system, circulation system.It is also usually matched with contactors,relays,etc. to control other devices and equipments.

Water flow switch is Used on the pressure booster pump

Use water flow sensor on the pressure booster pump : The interface connector of the water flow switch of this kind booster pump is generally 3/4 “to 1/2” and the water flow switch is connected to the water circulation pump. if you are not sure about the size, You can also take pictures and send them to us or measure it yourself. The power can be selected according to the power of your water pump. The power selected of the switch can not be less than the power of your water pump, you can buy a larger power switch. If the water pump is used in a hot water environment, it is recommended to buy an upgraded version which can support high temperature.


Water flow switch is Used for general water pump retrofitting

Non-automatic pumps can be retrofitted into automatic pumps, realize the result of the opening of the faucet, the start of the water pump; the turning off the water faucet, the pump stops. Or in a supply- heating environment, when need to supply heating. start the pressure water pump; when no need heating, the water pump turn off automatically , it can also protect the water pump from burning.It need to use the upgrated version–supporting high temperature water flow switch for heating. When retrofitting the self-priming pump, it is recommended to buy the water flow switch which power is higher because the self-priming pump`s actual power wil be generally greater than the marked power.

The premise to retrofit pump: the water pump is used in the environment where the tap water is pressurized or the water tower supplies water from top to bottom. It cannot be used for pumping well water or water in buckets after retrofitting! ! ! If you want to refit the water pump for pumping well water or pumping water in a bucket, you need to refit it with a pressure switch (you can email to us).


Water flow switch Used on Laser Engraving Machine \Medical Equipme

Applied to laser engraving machine, laser cutting machine, and other equipment with cooling system, circulation system.. Use the water flow switch to collect on-off signals and transmit them out, link and control system to achieve the purpose of controlling Or cooperating with contactors, relays, etc, to control other equipments. The main model used is 1/2″ 12V-24V,. 1/2″ 0-110V 0.2A,1 inch 0-110V 0.2A,and 1.2 inch 0-110V 0.2A.


Water flow switch is ued to connect Contactor relay to control other devices automatically

The water flow switch is usually matched with contactors,relays,etc. to control other devices and equipments. Or used in controlling cabinet, circuit design and other applications, to achieve automatic controlling, linkage controlling.


If it is used in other usage scenarios, you can send email and consult us to see if it can work or not.

How to install “Water flow switch controller for circulation booster pump”?(water flow switch connection diagram)

How to connect a flow switch to a pressure boosting water pump?

If you want to equip the switch onto the circulation booster pump,just insert the original plug into the socket as below:

how to wire water flow switch controller and water booster pump

How to wire water flow switch and other general water pump?

If you want to connect the switch with other types water pump,please refer to the below image:

how to connect water flow switch onto general water pump

Note: Electricians should not use multimeters to measure on-off without electricity!! The resistance value is too low to measure, and the water flow switch must be connected in series.

 How to purchase “ Water flow switch controller for circulation booster pump thread 1/2″ to 2″,AC220V,withstand high temperature”

  • The switch is available for retail and wholesale;
  • The place of origin is in China,when you buy one or two,please consider freight(by air or by sea) into the cost;
  • Accept bulk order with Container delivery;
  • Please contact us online (click here) Or send inquiry message to our email:  sale@smartclima.com

Understand a “Water flow switch controller for circulation booster pump”.

What is a water flow switch? And how does a water flow switch work?

The on/off water flow switch for the pipeline booster pump is an automatic water flow switch,it adopts the water flow magnetic control device to control the on-off of the induction element, so as to achieve the function of starting and stoping the water pump. This product has a wide range of uses, mainly suitable for household tap water booster in low water pressure areas, especially for low-pressure ignition of showers, which is more important for laser equipment and environmentally friendly ozone equipment.the Water flow switch controller with model HT-60,HT-120,HT-200,HT-800,HT-801,HT-802,HT-2010 has following features:

Technical features:

1.Stable.In the design, the induction chamber, the magnetron chamber, and the electronic component chamber are separated to avoid the iron-containing materials in the pipeline from being adsorbed by the magnetic materials to avoid switch failure.
2. Withstand high temperature.It is produced with high-temperature resistant materials, so that the products can be used under hot and cold water conditions.
3.Start with low water pressure.The return spring is made of high-quality stainless steel material to achieve the effect of turning on the water pump at low water pressure.
4. Safety: Electronic components are used as control devices to make the product spark-free and fully enclosed during use.

Working principle:

Turn on the water equipment, there is water flowing in the pipeline, and the water flow impulse sensor door rotates along the shaft in the direction of the water flow. The magnetron device rotates with the shaft. When it reaches a certain position, the sensor element is triggered, the switch is turned on, and the household pipeline booster pump starts. When the water flow is interrupted with the shutdown of the water-using equipment, the induction door, under the action of the return spring, drives the shaft and the magnetic control device to rotate together to a certain position, the induction fails, the switch is disconnected, and the household pipeline booster pump stops running.

Technical indicators:

Medium used: tap water or similar liquids with similar physical and chemical properties.
Medium pressure: <0.6Mpa
Medium temperature: Commen type≤60℃; High temperature type≤100°C
Conditions of use: the pressure of water inlet is at least greater than 0.3kg and the water flow speed is at least 2L/min;

Precautions for the use of water flow switch:

1.When installing, pay attention to whether the water flow direction of the pump and the water flow switch is the same. The arrow on the water flow switch points to indicate the direction of the water flow switch.

2.When there are impurities in the tap water pipe, it will cause the water flow switch to fail. Therefore, it is recommended that the newly installed pipeline should be fully discharged to flush out the impurities in the pipeline before connecting to the water pump and the water flow switch. At the same time, it is recommended to install a filter in the pipeline, but the filter should be cleaned frequently to avoid water flow being blocked and the flow rate reduced, which will cause the switch to start and fail.

3.When the flow rate of tap water is insufficient or unstable, the staring and stoping of the water flow switch will cause the water pump to stop and start, and this phenomenon will automatically disappear when the flow rate of tap water is restored.

4. The base of the water flow switch is made of brass material, please do not come into contact with corrosive materials.

5. Do not extend external objects into the water flow switch pipeline to avoid failure.

6. Do not open the internal connector in the water flow switch nut to avoid leakage.

7. When the water flow switch fails, non-professionals should not disassemble it to avoid water leakage, which may endanger the human body from harming the environment.

Notice before purchase this Water flow switch controller for circulation booster pump:

① Use tap water, or draw water from bottom to top, and the height should not exceed 5 meters,because the switch works depens on water flowing;
② Don`t work for pumping water from tank or from well,because the switch works depens on water flowing;
③ If the water pressure is very small and the water flow is very slow, then it can not be used;
Conditions of use: the pressure of water at inlet is at least greater than 0.3kg and the water flow speed is at least 2L/min;
④ If water pump`s head lift exceeds 35 meters, use the flow switch with caution.
⑤ The power of the water flow switch must be greater than that of the water pump, or you need to equip an AC contactor to use.
⑥ The switch working for pump of AC220V and DC12V,DC24V,DC48V,DC110V pump,they are different types,before you purchase,please confirm your pump`s voltage..
⑦ If you want hot water flow switch for heating system,please choose upgraded version which is having inner brass cap instead plastic cap.It can support 100℃.

Production scence for “Water flow switch controller for circulation booster pump” in our factory

china factory to manufacture Water flow switch controller for circulation booster pump

chinese company to produce Water flow switch controller

All switches are tested carefully and strictly before leave our factory,no leak,quality is assured!

General Knowledge on “water flow switch”

What is a water flow switch?

Water flow switch is used for electric water heaters, solar water heaters, air conditioners and other water systems for water circulation control, water inlet and outlet control, water heating control, water pump switch control, solenoid valve on-off control or water outlet power-off, water outlet power-on control and other processes. A sensor device that converts the water flow into an on-off electrical signal after reaching a certain flow rate.

How does flow switch work?

The working principle of the water flow switch When there is water flowing in the water flow switch, and the water flow rate is ≥1.0L/min, the magnetic core in the water flow switch is displaced by the water flow, and the displacement of the magnetic core drives the magnetic source to produce a magnetic control effect, so that the water flow switch outputs “on”. “Signal. The automatic selection of the flow switch is included in the quick and easy selection. The signal is input to the equipment control system, and the control system realizes the control function. When the water flow is less than the starting flow, the water flow switch outputs the “off” signal. The control system produces the opposite control action to the above. In other words: water flow switch When the water flow in the pipeline is greater than 1L/min, the magnetic core will be displaced under the action of the water flow and drive the magnetic source to produce a magnetic control effect, so that the sensor outputs a “1” switch signal, which is input to The equipment control system realizes the purpose of water flow control after power expansion. When the water flow in the pipeline is less than 1L/min, the magnetic core drives the magnetic source to return under the action of the return spring, so that the sensor outputs a “0” switch signal and stops the system. The flow switch has the advantages of high sensitivity and strong durability.

What are features of the water flow switch?

1. The flow switch has the advantages of high sensitivity and strong durability. 2. Detect whether the liquid in the pipeline flows and whether the amount of flow (flow, that is, the liquid flow pressure) meets the requirements, and at the same time output (provide) the on-off state of a signal by the switch electrical contact. 3. The equipment system judges the working status of the pipeline system by detecting whether there is a signal or control current passing through the switch (the on and off state of the electrical contacts of the water flow switch), and gives the corresponding control or operation mode or measures. 4. It can monitor the liquid flow in the pipeline in real time, provide switch output, and use 6 LEDs to display the fluid flow rate status in real time to realize the monitoring function. It is widely used in petrochemical, electric power, metallurgy, steel mills, papermaking, food processing, water treatment, battery factories and other industries.

How to install a water flow switch?

1. Vertical installation. When installed vertically, it should be installed on the pipe section that flows from bottom to top. 2. Horizontal installation. When installed on the upper end of a horizontal pipe, it should be ensured that the medium is full to prevent the probe from only touching the air but not the medium. 3. Invert. When installed at the lower end of a horizontal pipe, it should be ensured that there is no sediment at the bottom of the pipe to prevent the probe from being covered by sediment and unable to fully contact the probe

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Reviewed by 02 customer(s)

  • Ceasar

    How much for the size of 3/4″ to 3/4?

    2022-10-18
    Verified Purchase
  • Enrique Matanza

    My old switch installed on pump has been used more than 5 years, and it stopped recently. Just brought and Replace it and now works well.

    2022-10-17
    Verified Purchase
  • Talon

    I have been using it for a week, the effect is good, the sensitivity is high, this is what I need.

    2022-10-17
    Verified Purchase
  • Irek Indyk

    Be rough.But is pretty normal to put it on. The key is to look at the durability, and then evaluate.

    2022-10-17
    Verified Purchase
  • Laurine

    The quality of the water flow switch is very good, the workmanship is beautiful, the installation is simple and convenient, the appearance is small, the workmanship is fine, the sensor is very sensitive, not bad, easy to use and come again next time.

    2022-10-06
    Verified Purchase
  • Kennedy

    The response of the induction switch is very sensitive. It is very easy to use when installed, and the price is very high. It is just right when installed on the booster pump. . .

    2022-10-06
    Verified Purchase
  • Serenity

    The water flow switch, true to its name, is very easy to use, just install the water pump, the water pump will automatically turn on when the faucet is turned on, and the pump will automatically stop when the water faucet is turned off. like!

    2022-10-06
    Verified Purchase
  • Harvey

    I started to buy a 150w from another store, and it burned after a few uses. This time I bought a 200w. The water pressure of the water pipe and the small water pump did not start. I baked the small accessories with magnets inside with a lighter, and the angle was small. A little bit, now the water pump starts as soon as the water pipe is turned on. It’s really good.SWuggest to buy bigger watt.

    2022-10-06
    Verified Purchase
  • Nathen

    We are installer of water heating system in Ireland,we want to purchase your water flow sensor switch with all sizes,could you give me the price sheet?

    2022-10-06
    Verified Purchase
  • Natalie

    It is very easy to use. It is installed on the circulating water pipeline of the mechanical seal, and the AC contactor of the motor is controlled to complete the mechanical seal without water and power failure.

    2022-10-05
    Verified Purchase
  • Constance

    The booster pump, which had been used for ten years, finally broke in last month, because the water flow switch was broken, and then the capacitor was burned out. After replacing the capacitor and use this water flow switch, the old pump was fully revived.

    2022-10-05
    Verified Purchase
  • Leonor

    Good, it solved a big problem, it can be switched on and off automatically, the hot water is constantly under pressure, very good!

    2022-10-05
    Verified Purchase

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