Woltman Meter (WPH)

This is a new type of smart water meter that uses a Turbine Type Water Meter as its base.

Features

Network Coverage: NB & 4G hybrid, wide coverage for rural, urban, indoor scenarios.
Communication: Direct base station connection, supports CT AEP, CM OneNET, UDP protocols.
Measurement: Non-magnetic/Hall sampling, accuracy 0.1m³/1m³; The electronic section: equipped with bi-directional metering capability, synchronized with base meter to avoid disputes.

Applications

Smart Water Plant, Sewage Treatment Plant

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Features

4G/NB-IoT Remote Monitoring with IP68 Waterproof Design

Internal structure is equipped with an integrated communication module and SIM card, supporting 4G/NB-IoT network for real-time transmission of water meter data such as flow rate, temperature, and signal strength directly to the meter reading system, enabling remote data collection, remote control, and fault alarm functions; external structure adopts a split design for Woltman meters (DN40–DN200), allowing the electronic unit to be mounted on the base meter or installed remotely on a wall, while the whole device is fully sealed with IP68 waterproof protection, ensuring durability and maintaining the structure and measurement accuracy of traditional wet-type water meters.

Data Reporting: Multiple modes (daily, N times/day, every N days, specified dates) (N≥2).
Time-sharing Reporting: Prevents server congestion from a large number of simultaneous terminal reports.
Abnormal Alarm: Alerts for power failure, sensor abnormality, disconnection.
Battery & Application (DN40~DN200 Turbine type): Optional multi-section ER34615 battery packs, supporting intensive collection/reporting.
Pressure Sensor (Vertical Turbine water meter): Optional installation.

Tech Specs

Base Meter Type	Rotary Type		Turbine Type
Nominal Diameter (DN), mm	32	40	50	80	100	150	200
Permanent Flow Rate (Q3), m³/h	10	16	40	63	100	250	400
Measurement Range (Q3/Q1)	R 100		R 100 / R 160 / R 200
Max. Pressure	MAP16
Pressure Loss	ΔP63 (≤0.063MPa)
Working Temperature	Cold Water Meter (T30): 0.1℃~30℃ Hot Water Meter (T90): 0.1℃~90℃
Flow Profile Sensitivity	U10/D5
Communication Interface	Wireless: NB-IoT/4G_Cat.1 Infrared: 9600bps
Operating Frequency Band	NB: B3/B5/B8 4G: B1/B3/B5/B8/B34/B39/B40
Installation	H
Environmental Class	Class O
Electromagnetic Compatibility	Class E1
Waterproof Rating	IP 68
Working Voltage	3.6V lithium battery, ER26500/ER34615
Case Material	Ductile Iron/Stainless Steel/Copper

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Installation Dimensions

DN (mm)	L (mm)	H (mm)	W (mm)	Connecting Thread d	Connecting Thread D
DN32	230	190	94	G1 1/4	G1 1/2B
DN40	245	225	116	G1 1/2	G2B

DN (mm)	L (mm)	H (mm)	Flange Outer Diameter D (mm)	Bolt Hole Center Circle Diameter d (mm)	Connecting Bolt and Quantity
WPH40	200	200	150	110	4-M16
WPH50	200	200	165	125	4-M16
WPH65	200	220	185	145	4-M16
WPH80	225	280	200	160	4-M16/8-M16
WPH100	250	290	220	180	8-M16
WPH150	300	320	285	240	8-M20
WPH200	350	364	340	295	8-M20/12-M20
WS40	245	220	G1 1/2 (Thread Connection d) / G2B (Thread Connection D)		G2B (Thread Connection D)
WS50	280	228	165	125	4-M16
WS65	300	238	185	145	4-M16
WS80	370	290	200	160	4-M16/8-M16
WS100	370	306	220	180	8-M16
WS150	500	445	285	240	8-M20
WS200	500	564	340	295	8-M20/12-M20