3.6V Water Meter No-Wire Actuator for DN15–DN25 smart water meters.
No-wire 2.0mm 5-pin plug-and-play connection, no cable welding. 3.6V DC · 2.5–5V operable · dual reduction: 2400:1 for DN15–DN20, 3700:1 for DN25 · ≥1.8–2.7 N·m torque · ≤25 mA operating current · 450 mA locked-rotor current · ≤10–16 s open/close · IP67.
Designed for automated meter assembly and battery-powered smart meter platforms. Pin functions and sequence can be customized.
Wholesale Water Meter No-Wire Actuator for DN15–DN25 Smart Meter Assembly
If you are sourcing actuators for a smart water meter production line, the approval questions are predictable: does the connection require cable welding, will torque hold on an aged valve, and will the pin definition match your meter board without rework? This no-wire actuator is built around those three constraints.
Kaiye has manufactured water meter actuators since the early adoption of smart metering, with an annual actuator capacity of 10 million sets and more than 30 years of hardware and control-valve production experience. This no-wire actuator is part of that volume-proven platform—engineered for OEM integration, batch consistency, and predictable lead times.
Below you will find the connection comparison, working parameters, pin definition, procurement limits, and the technical questions your engineering team will ask before approving a sample.
Traditional cable-welded actuator
Requires manual cable welding or soldering
Cold solder joints and oxidation risk
Assembly speed limited by manual operation
Harder to automate on a production line
Rework cost when a wire fails
No-wire plug-and-play actuator
2.0mm 5-pin direct connection, no cable welding
Eliminates cold solder and oxidation risk
Faster assembly, suitable for automated lines
Consistent connection quality unit to unit
Simpler field replacement and rework
Step 01
Seat the actuator
Align the 2.0mm 5-pin plug with the meter board socket and seat the actuator onto the valve stem.
Step 02
Confirm pin contact
Check that the plug is fully seated and the pin contact is stable. No cable welding is required.
Step 03
Run functional test
Power on and verify open/close response, current draw, and valve travel before batch release.
Technical Specifications Buyers Should Verify Before Ordering
The table below reflects the standard no-wire actuator configuration. Where your meter platform operates on a different voltage, torque curve, or pin definition, these parameters can be customized during the OEM review.
Parameter
Standard Value
Procurement Note
Rated Voltage
3.6 V DC
Confirm compatibility with meter battery pack
Operable Voltage Range
2.5–5 V DC
Higher voltage within range delivers greater torque but shortens lifespan
Operating Current
≤25 mA
Budget for peak current during valve travel, not only standby
Locked-rotor Current
Approx. 450 mA (300-series motor)
Useful for driver and protection circuit sizing
Reduction Ratio
2400:1 (DN15–DN20)
3700:1 (DN25)
Match reduction ratio to valve size; do not use 2400:1 on DN25
Output Torque
≥1.8 N·m (2400:1)
≥2.7 N·m (3700:1)
Confirm against valve seating torque and pipe size
Open/Close Time
≤10 s (2400:1)
≤16 s (3700:1)
Open-to-close or close-to-open at rated voltage
Waterproof Rating
IP67
Dust-tight and protected against temporary immersion
Connection
2.0mm 5-pin plug-and-play, no cable welding
Pin functions and sequence can be customized
If your meter board uses a different pin definition or expects a different connector, Kaiye’s engineering team can review the interface and propose a matched configuration rather than forcing a standard plug into an incompatible board.
2.0mm Pin Definition: What Engineers Ask First
The actuator uses a standard 2.0mm 5-pin interface. Pin functions and sequence can be customized according to your project requirements.
Pin Number (2.0mm)
Pin Function Definition
I
Valve Open Control Signal
II
Common Terminal (COM)
III
Valve Close Control Signal
IV
DC Power Positive (+)
V
DC Power Negative (-)
Power pins.Pin IV and V feed the motor drive. The drive circuit should be sized for the locked-rotor current of 450 mA, even if normal operating current is ≤25 mA, because valve seating can briefly demand higher current. Reverse-polarity protection on the meter board is recommended if the actuator is field-replaceable.
Control pins.Pin I, II, and III carry open/close control and COM. This circuit should be treated as a control input, not a power line, and should remain independent of the communication module so that a communication failure does not disable valve control.
Before volume release, buyers should confirm pin sequence, plug orientation, and actuator position inside the meter housing. Kaiye can supply a sample for mechanical and electrical fit-check before the production order is placed.
Technical Drawing
Where the No-Wire Actuator Is Used: Application Fit for Volume Projects
The actuator is positioned for smart meter platforms where plug-and-play assembly, low current draw, and a stable pin connection matter more than high-speed actuation. Typical volume applications include:
Smart residential water meters (DN15–DN20).Remote open/close for billing control, arrears management, and leak response. Use the 2400:1 version.
Larger-bore residential and light commercial meters (DN25).Where valve seating torque is higher and the 3700:1 version is required.
Automated meter assembly lines.Where eliminating cable welding simplifies the assembly process and improves unit-to-unit consistency.
OEM meter platforms.Actuator supply to water-meter manufacturers that integrate the no-wire actuator into their own meter product before shipping to the utility.
Because the actuator is part of Kaiye’s broader water-meter component platform, buyers sourcing multiple components can consolidate qualification and logistics. If your project also requires wireless communication at the meter level, the actuator is designed to work alongside Kaiye’s wireless water meter platform. You can also review the full water meter actuator range for related models.
Quality, Consistency, and What “Manufacturer” Actually Means Here
For B2B buyers, “manufacturer” should mean process control, not just a trading company with a catalog. Kaiye operates an ISO 9001 quality system, runs automated production for actuator assemblies, and has been producing water-meter actuators for more than two decades. This no-wire actuator benefits from that production base in three concrete ways:
Batch consistency.The no-wire pin connection removes manual cable welding, which is one of the largest sources of unit-to-unit variation in actuator assembly. Automated assembly and controlled pin dimensions reduce variation in contact resistance and response time.
Incoming inspection and final test.Standard production includes functional checks for current draw, response time, and valve travel. Buyers can request the inspection protocol and sampling plan before placing a volume order.
Traceability.Model code, production batch, and test records are retained so that if a field issue appears, the affected population can be isolated rather than treating every actuator in the project as suspect. For more on Kaiye’s production base and quality system, see the company profile and manufacturing overview.
OEM Customization and Procurement Terms
The no-wire actuator is available as a standard unit, but standard does not mean fixed. For OEM and project buyers, the following items are commonly customized after technical review:
Pin definition and sequence.Pin functions and pin order can be aligned with your meter board.
Connector and housing.Plug type, orientation, and actuator housing can be specified to match your meter enclosure and assembly fixture.
Reduction ratio.If your valve size falls outside DN15–DN25, or the seating torque is unusual, an alternative gear ratio or motor tier may be more appropriate than the standard 2400:1 or 3700:1 configuration.
Branding and packaging.Private-label marking, neutral packaging, and project-specific labeling are available for volume orders.
Typical MOQ and lead time are confirmed at quotation. Standard delivery is generally 15–30 days after PO and sample confirmation, depending on order quantity and component availability.
Procurement FAQ
What does “no wire” mean on this actuator?
It refers to a no-wire pin connection: the actuator plugs directly into the meter base and electronic module through a 2.0mm 5-pin interface, with no cable welding required. This simplifies assembly and supports automated production lines.
Which water meter calibers is the no-wire actuator suitable for?
It is designed for DN15–DN25 smart water meters. Use 2400:1 reduction for DN15 and DN20 meters, and 3700:1 reduction for DN25 meters.
What is the pin definition?
The standard 2.0mm 5-pin definition is: I valve open control signal, II common terminal (COM), III valve close control signal, IV DC power positive (+), V DC power negative (-). Pin functions and sequence can be customized.
Can the pin definition, cable, or branding be customized?
Yes. Pin functions, pin sequence, connector type, and private-label marking can be specified for volume orders after technical review.
What is the delivery time for regular orders?
Delivery time is generally 15–30 days, and can be shorter or longer based on model period and order quantity.
For inquiries about water meter actuators, purification valve actuators or price list, please leave your email to us and we will be in touch within 24 hours.
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