Which brand of mixed-water equipment is best for bathhouses in Heilongjiang? Heilongjiang has long been a major coal-consuming province; aside from heating during winter, bathhouses also use enormous quantities of coal for water heating. Currently, the state has repeatedly raised water tariffs, and policies restricting coal use for bathhouse water heating have been introduced. Energy conservation and water saving are no longer just empty slogans. We solemnly promise that by using constant-temperature mixed-water equipment, bathhouses can save 40% of water resources while also reducing thermal energy consumption.

Which brand is best for mixing equipment used in bathhouses in Heilongjiang? Since Heilongjiang has relatively cold temperatures, it’s even harder to keep bathwater warm. Simply insulating the water tank is no longer sufficient to maintain a constant water temperature. To truly achieve stable, consistent water temperature, you’ll need mixing equipment that continuously monitors and adjusts the water mix in real time. Chengde Longzhida mixing equipment uses temperature sensors, solenoid valves, and fully automatic microcomputer control—just like a robot—to help you manage your bathwater temperature effortlessly. It provides a steady supply of shower water at a constant temperature and pressure, with temperature-control accuracy reaching as high as 0.5℃. This system significantly saves both water resources and thermal energy, as well as coal and gas.

Which brand is best for mixing equipment used in Heilongjiang bathhouses? The mixing cylinder of Chengde Longzhida mixing equipment adopts a vortex-type mixing structure, ensuring thorough mixing of cold and hot water within a very short and compact container. This design significantly reduces the product’s footprint, saving considerable space and materials. The product is equipped with five types of abnormal condition alarms—indicating no cold water, no hot water, excessively low cold-water temperature, excessively high hot-water temperature, and system malfunctions—thus guaranteeing both safety and ease of maintenance. Chengde Longzhida mixing equipment features a simple structure, small size, stable outlet water temperature, and rapid adjustment speed. It addresses the traditional reliance on manual or mechanical methods—where water tanks must pre-mix water beforehand, leading to long-term storage and substantial waste of energy and water resources. With this new approach, water is mixed precisely as it’s needed: more mixing when usage is high, less mixing when usage is low, achieving energy savings and water conservation. This not only ensures user satisfaction but also effectively prevents wastage.

Which brand of mixing equipment is the best? Our top choice is Hebei Chengde Longzhida. The intelligent mixing equipment with constant temperature and pressure, developed by Chengde Longzhida, was granted a research and development patent in 1998. We have been dedicated to the research and production of mixing devices ever since. Today, our mixing equipment products are sold far and wide across more than 20 provinces and cities, and are extensively used in numerous universities—including Tsinghua University, Peking University, and Shandong University of Technology—earning high praise from a broad range of users.

Which brand offers the best mixing equipment? The top choice is Hebei Chengde Longzhida. Its products have a wide range of applications, suitable for bathhouses (rooms) in government agencies, organizations, enterprises, and public venues, as well as for industries such as chemical processing, dyeing, and printing.

A mixed-water device is a mechatronic device that uses temperature sensors for detection, microcomputer control, and solenoid valve actuation to automatically adjust water temperature and achieve the set usage temperature.

What are the advantages of mixing equipment?

1. The mixer is highly intelligent—no manual intervention required. It automatically controls and adjusts the water temperature, offering convenience, hygiene, water conservation, and energy savings.

2. The mixing equipment features high reliability, strong anti-interference capability, and a long service life.

3. The mixing equipment features a wide temperature control range and high temperature control accuracy.

4. The mixer has a compact size and is easy to install, reducing the cost of tank manufacturing and saving on raw materials and construction space.

Which brand of mixing equipment is the best? — Hebei Chengde Longzhida Constant-Temperature and Constant-Pressure Intelligent Mixing Equipment, designated as a standard product by Tsinghua University. This fully automatic mixing device features electromechanical integration; all you need to do is set the desired temperature, and it will blend water into consistently hot water ready for use—no more fluctuating water temperatures or alternating between hot and cold. The temperature control accuracy is 0.5 degrees Celsius.

Contact phone number: 15343144268 (Manager Qiu)

How to Use a Mixing Valve—The HSZ series bath thermostatic mixing valves produced by Chengde Longzhida Company are electromechanical devices that employ microcomputer control technology and utilize advanced temperature sensors for feedback detection, thereby controlling solenoid valves to automatically adjust the outlet water temperature. The entire system consists of two main components: one is the intelligent control and electrical control section, and the other is the mechanical actuation section responsible for water mixing.

How to use a mixing valve—First, you need to understand that a mixing valve is simply a water-mixing device. It only has the function of mixing water and maintaining a constant temperature; it is not a heating device. This is an important point for bathers to keep in mind.

Second, the mixer requires an electrical power supply when in use. Hot water must be supplied by a separate boiler or other heating device, and the water temperature should be kept below 75 degrees Celsius. Alternatively, you can purchase preheated hot water. After setting the desired outlet water temperature using the digital display, simply wait for the water to mix to the target temperature. This process is very quick—taking only about 2 minutes.

Next, you won’t have to worry about a thing—just leave it all to the mixing valve. The water temperature will remain stable throughout the day, with fluctuations no greater than 0.5 degrees Celsius. You won’t need to hire anyone separately to monitor and adjust the water temperature anymore. So how does this mixing valve achieve such precise temperature control? It doesn’t just rely on simple insulation; instead, it uses a microcomputer to continuously detect the water temperature. If the water is too cold or too hot, the valve instantly adds or mixes in water to bring the temperature back to the desired level. Now let’s take a closer look at how the mixing valve works.

How to use the mixer:

(1) The electrical control section of the mixing valve consists of a DC regulated power supply, a microcontroller, a temperature sensor, and control software. It is used to control the on-off operation of the solenoid valve of the mixing mechanism’s actuator, automatically regulating the actuator’s output to maintain a constant water flow and temperature according to different flow rates, water temperatures, and system conditions.

(2) The actuator section of the Chengde Longzhida mixing device consists of components such as an electromagnetic valve assembly, a mixing bucket, and mixing blades. Under the control of the controller, this section achieves thorough mixing of cold and hot water. The mixing process leverages the pressure difference between cold and hot water to facilitate the introduction of cold water into the hot water stream. Furthermore, the mixing blades ensure that the cold and hot water are thoroughly blended, ultimately delivering constant-temperature hot water.

(3) The electrical controller of desktop mixing valves of the HSZ-50BP model and above is equipped with a frequency converter controller, which regulates the output pressure of the cold-water pump to ensure constant water pressure supply. At the same time, the electrical controller incorporates a pipeline return-water circulation system controller that automatically recirculates cold water from the pipes back into the water tank, thereby preventing wastage of water resources caused by the discharge of cold water from the pipes.

The mixer is simple and easy to use, with stable performance. It is particularly well-suited for large-scale bathing facilities, but can also be applied to food processing that requires constant-temperature water, or to supplying consistently heated water for cleaning factory equipment, and more.

The water meter may rotate on its own due to one or more of the following reasons:

1. Leaks in users’ indoor piping or water-using appliances. Generally, leaks from faucets are easy to spot. However, due to the widespread use of concealed engineering in modern buildings, many water supply pipes are buried underground or within walls. Leaks in pipes laid this way are often difficult to detect—yet users continue to use water, albeit at a very slow flow rate inside the pipes.

2. Illegal water usage by water users: In daily life, some individual users—particularly those in areas with low water pressure—install pumps directly on their household tap pipes to ensure that their home water appliances (mostly shower fixtures) function properly. When the pump or valve is started or stopped, water hammer often occurs, striking the impeller of the water meter and causing it to rotate.

3. Fluctuations in pipeline water pressure: As a liquid, water exhibits compressibility when the pressure in the water supply pipeline is relatively high. Pressure fluctuations in tap-water pipelines are unavoidable. When the pressure in the main distribution network rises, the volume of water in the downstream pipelines decreases due to the increased pressure, causing a small amount of water to pass through the water meter and result in forward rotation. Conversely, when the pressure in the main distribution network drops, the water meter will register reverse rotation. Since the resistance encountered by the internal gears of the water meter during reverse rotation is greater than that during forward rotation, even if the inflow volumes at both ends of the meter are identical, the readings displayed on the meter will differ, typically showing a net forward rotation.

4. Dissolved gases in water escape. During the production of tap water, large amounts of gas dissolve into the water. Additionally, during pipeline construction, gas can accumulate inside the pipes. If a household hasn't used water for an extended period or if the pipeline design is inadequate, air pockets may form at the highest points or protruding sections of the home's plumbing system. Since gases are highly compressible, any pressure fluctuations in the pipeline at this point can cause significant expansion and contraction of the space behind the water meter, thereby inducing substantial self-rotation of the meter. Currently, in most cases, the self-rotation of water meters among users is caused by the presence of air pockets in the piping system downstream of the meter.

5. Improper design and construction of water supply pipeline facilities. When installing water meters, it is essential to provide necessary straight pipe sections upstream and downstream—or equivalent flow conditioners—(with an upstream straight pipe length of at least 10D and a downstream straight pipe length of at least 5D; for bends or situations where the water flow is disturbed by pumps, flow-conditioning devices must be installed before the straight pipe sections) to ensure that the meter’s measurement accuracy is not affected. However, in actual construction, either due to limited space in pipe corridors or inadequate management leading to workers failing to follow the required procedures, water meter installations often fail to meet standards.

Adopt appropriate control methods based on different causes:

1. Replace all aging and poorly maintained pipes in the home, and thoroughly inspect each water fixture—such as toilets—and concealed piping to reduce unnecessary water expenses.

2. Once you discover someone illegally using water, you should immediately report it to the water supply company to eliminate such illegal water usage.

3. One of the reasons for the self-rotation of water meters is the compression of water caused by fluctuations in pipeline pressure. To address this, consider installing a check valve to prevent backflow. For ease of installation, you can opt for a water meter equipped with a built-in check valve. Given that residential water usage is relatively frequent and pipeline pressure fluctuations are generally minor, when selecting a check valve or water meter, pay close attention to the quality and sensitivity of the check valve.

4. To effectively remove gas from pipelines and prevent the formation of air pockets, the following precautions should be taken: During pipeline design, properly arrange vent valves; when installing pipelines in homes, minimize bends and sharp turns, and ensure that the highest point of the pipeline is located near frequently used faucets; when first filling a new pipeline with water, open the valves slowly to allow as much gas as possible to be expelled from the pipeline; during household meter renovations, dead-end pipe sections are prone to air pocket formation—these sections should be removed or modified whenever possible; and when designing and installing water meters, ensure that straight pipe sections meet the installation requirements for measuring instruments.

The self-rotation of water meters is a problem caused by a combination of factors. We urge all users to check the reasons behind inaccurate water meter readings. By employing existing methods, the phenomenon of self-rotation can be significantly reduced. At the same time, we remind all users to purchase water meters from manufacturers that offer high-quality products and reliable after-sales service.