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Single-Jet Water Meter

Your Professional Single-Jet Water Meter Supplier

 

Ningbo Water Meter (Group) Co., Ltd. is one of the world's largest manufacturers specializing in water meter production and services. NWM offers a comprehensive range of products, including water meter terminals ranging from 8mm to 500mm for mechanical water meters, AMR-enabled mechanical meters, fully digital water meters, and multifunctional water monitoring terminals. Additionally, NWM provides a Smart O&M Platform that integrates advanced water management information systems such as pipeline GIS, DMA zoning analysis, SCADA leak monitoring, and pipeline inspection. These solutions are widely applied in domestic, commercial, industrial, and irrigation contexts.
 

Strong Competence
Ningbo Water Meter (Group) Co., Ltd. is a leading enterprise in the field of water measurement, employing over 1,400 professionals and operating a primary manufacturing facility spanning 90,000 square meters.

 

Advanced Technology
NWM leverages cutting-edge German technology and utilizes fully automated European-imported equipment to deliver comprehensive solutions tailored for municipal, commercial, and agricultural customers.

 

Diverse Product Portfolio
With a portfolio exceeding 1,000 distinct products, NWM not only manufactures mechanical water meters ranging from 8mm to 500mm but also provides AMR/AMI solutions and smart water management services to a global clientele.

 

Advanced Equipment
Our company has more than 80 fully automatic and semi-automatic water meter calibration production lines. We also have highly information-based production workshops, SMT welding lines, robotic assembly lines, and fully automatic packaging lines.

 
 

Parameter

 

Model

SJ-SDC PLUS(D2)

SJ-LFC (FD2)

Type

Single jet

Single jet

Body Material

Brass

Brass

Ratio

Class C/R160

Class C/R160

Size

Dn15/20/25/32/40

Dn15/20/25/32

Customized Support

OEM, ODM

OEM, ODM

Communication Port

Reed Switch/LoRa/LoRaWAN /NB-IoT

Reed Switch/LoRa/LoRaWAN /NB-IoT

Installation Mode

Horizontal installation

Horizontal installation

Temperature Class

T30 (cold water)/T50/T90

T30 (cold water)/T50

Pressure Rating

MAP16

MAP16

Certificate

CE/MID 2014/32/EU

CE/MID 2014/32/EU

Place of Origin

Ningbo, China

Ningbo, China

Warranty

2 years

2 years

 

Advantages of Single-Jet Water Meter
 

Simple structure and low cost
Single jet water meters have the simplest structure among all water meter varieties. It eliminates complex components such as gear boxes and impeller boxes in multi-flow water meters, making the overall structure more compact. Due to its simple structure, the manufacturing cost of single jet water meters is relatively low, which can significantly reduce the overall cost for situations where a large number of water meters need to be installed.

 

Small size and light weight
The single jet water meter is smaller than other types of water meters, which makes it more flexible in installation and can adapt to more occasions with limited space. The lightweight feature makes the single jet water meter more convenient during transportation, installation and maintenance.

 

High accuracy
Although the structure of a single jet water meter is simple, its processing accuracy requirements are very high. For example, the processing accuracy of the water inlet and outlet holes of the watch case and the central screw hole of the inner hole need to reach very high standards to ensure the measurement accuracy of the water meter. Single jet water meters usually use an internal error adjustment method.

 

Suitable for specific water quality and flow field conditions
Single jet water meters have higher requirements on water quality and flow field, which limits their application scope to a certain extent. However, in situations where the water quality is good and the flow field is stable, the single jet water meter can take advantage of its high-precision measurement.

 

Easy to maintain and replace
Due to its simple structure, small size and light weight, single jet water meters are also more convenient to maintain and replace. When a water meter malfunctions or requires calibration, it can be quickly disassembled, repaired or replaced.

 

Single-Jet Dry Type Water Meter With Non-Magnetic Transmission Module

 

Applications of Single-Jet Water Meter

Residential Water Metering: Single jet meters are widely used in residential homes to monitor household water consumption, enabling accurate billing and encouraging water conservation.


Light Commercial Applications: In small commercial buildings, such as offices or retail spaces, single jet water meters are suitable for tracking water usage without the need for the heavy-duty capacity of a turbine meter.


Irrigation Systems: For smaller irrigation setups, single jet meters are a good choice to measure water used for lawns or gardens.


Submetering: Property owners can use single jet meters for submetering individual units in apartment buildings or commercial spaces, allowing tenants to be billed based on actual consumption.

 

Installation Steps of Single-Jet Water Meter

Shut off the main water supply valve and drain the pipes.


Choose a location for the water meter that is accessible and protected from freezing and tampering.


Cut a section of pipe that matches the length of the water meter and insert two couplings on both ends.


Insert the water meter between the couplings and align it with the direction of the water flow. Make sure the register is facing upwards if the meter is installed horizontally, or sideways if it is installed vertically.


Tighten the couplings with a wrench and check for leaks.


Turn on the main water supply valve and test the water meter by running some water through it. Check the register for accuracy and functionality.

Multi-Jet Dry Type Water Meter With Smart Module

 

Precautions for Using Single-Jet Water Meter

 

 

Read your water meter regularly and record your readings. This will help you track your water consumption and detect any leaks or malfunctions.


Keep your water meter clean and free from dust and dirt. You can use a damp cloth or a soft brush to wipe it gently.

 

Avoid exposing your water meter to extreme temperatures or direct sunlight. This can damage the register or affect its accuracy.

 

Do not tamper with your water meter or try to modify it in any way. This can void your warranty and result in inaccurate readings or penalties.

 

Packaging and Shipping

 

Packaging

Standard cartons box packing,or customized packing as your request.

Shipping

For the weight is under 100kg, we suggest shipment by FedEx, DHL or UPS.

For the weight is between 100-200kg, we suggest shipment by air.

For the weight is above 200kg, we suggest shipment by sea.

 

Our Certifications

 

 

NWM has more than 20 European MID/OIML approved Certificates like CE, more than 10 Water Sanitary Certifications like ACS, WRAS, NSF, and more than Metrologic approval from all over the world. 

 

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FAQ

Q: What is the working principle of single jet water meter?

A: The meter operates on the velocity principle that a jet of water enters the water meter body drives the impeller. The impeller is suspended by hydrodynamic forces to give minimum load on the bearings. The impeller rotation is magnetically transmitted to the register which the reading is made.

Q: How do I know if my water meter is working properly?

A: To test the accuracy of your meter, use the following procedure. Run water until the last three digits on your meter reading are all zeros. Then fill a one-gallon container with water. The last three digits on your meter should read .

Q: What is the difference between Class A and Class B water meter?

A: Water meters are also classified as per their ability to give accurate readings, and are labelled as class A, B and C meters. Class A meters can measure higher flow rates and Class B meters have the ability to measure very low flow rates, compared to class A meters.

Q: Should my water meter be running all the time?

A: If you notice your meter spinning while all of the faucets are closed, it could indicate a potential hidden water leak dripping away and causing damage in someplace unseen.

Q: What can make a water meter read wrong?

A: The most common reason for a water meter to fail is old age. Water meters can rarely experience mechanical failure, so the faulty reading is likely caused by something like a leak or poor water flow. You can conduct a few tests at home to determine the cause of drastic changes in your water meter's readings.

Q: What is the difference between single jet and multijet water meter?

A: Single-jet and multi-jet water meters differ primarily in how they measure water flow and their accuracy at lower flow rates. Single-jet meters use a single stream of water to drive an impeller, while multi-jet meters utilize multiple jets to rotate the impeller. Multi-jet meters are generally more accurate at low flow rates and can better handle water with some impurities.

As one of the most professional single-jet water meter manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy bulk cheap single-jet water meter made in China here from our factory. Contact us for customized service.

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