Mechanical water meters and accessories
Sources: dated DLP/MLP 25 August 2025, pp.45-46 (S3/S5), and the Woltmann sheet S30.
| Item code / family | Sizes listed | Temperature / construction | Output and features |
|---|---|---|---|
| LIV-WM-BS-SJ-001 | 15, 20 mm | Brass single jet, cold to 50°C | Dry dial, anti-magnetic, hermetically sealed; description includes 10 L/pulse |
| LIV-WM-BS-SJ-002 | 15, 20 mm | Brass single jet, hot to 90°C | Same reading features and stated 10 L/pulse |
| LIV-WM-BS-MJ-001 | 15, 20, 25, 32, 40 mm | Brass multijet, cold to 50°C | Dry sealed register; optional pulse wire, 10 L/pulse |
| LIV-WM-BS-MJ-002 | 15, 20, 25, 32, 40 mm | Brass multijet, hot to 90°C | Optional pulse wire, 10 L/pulse |
| LIV-WM-WL-001 | 50-300 mm, including 125 mm | Woltmann cold to 50°C, 16 bar per sheet | Removable insert, magnetic drive, 360° ring, ISO4064 Class-B, retrofit pulse |
| LIV-WM-WL-002 | 50-300 mm, including 125 mm | Woltmann hot to 90°C, 16 bar per sheet | Same serviceable insert; upper-band hot accuracy ±3% |
| LIV-WM-WI-001 | 50-300 mm | Irrigation/Waste Water/ETP; to 90°C in list | “Load water up to 30%” claim; definition/particle limits absent; optional pulses |
The WL sheet gives ±5% below Qt and ±2% from Qt to Qs for cold water, ±3% in the hot upper zone, ΔP ≤0.1 MPa, and reed/Hall/Wiegand sensor choices on request. Its generic 10/100/1000 L/pulse options are narrowed in the list to 100 L/pulse through 150 mm and 1000 L/pulse above that. Confirm the fitted pulse constant. [S30 p.1; S5 p.45]
| WL size mm | Qmin | Qt | Qp | Qs | Length mm |
|---|---|---|---|---|---|
| 50 | 0.45 | 3 | 15 | 30 | 200 |
| 65 | 0.75 | 5 | 25 | 50 | 200 |
| 80 | 1.2 | 8 | 40 | 80 | 225 |
| 100 | 1.8 | 12 | 60 | 120 | 250 |
| 125 | 3 | 20 | 100 | 200 | 250 |
| 150 | 4.5 | 30 | 150 | 300 | 300 |
| 200 | 7.5 | 50 | 250 | 500 | 350 |
| 250 | 12 | 80 | 400 | 800 | 450 |
| 300 | 18 | 120 | 600 | 1200 | 500 |
All four flow columns above are m³/h, from S30 p.2. They are model-specific; they must not be substituted into the inconsistent SANT WM2 table. Flange OD, PCD, bolts and weights are also provided in S30 p.2, including separate 1.0/1.6 MPa drilling for some large sizes.
Accessories in S5 p.46: MJ pulse wire, WL/WI pulse wire, remote RS485 totalizer, MS panel/cabinet and combined totalizer/panel. A mechanical meter plus RS485 display is a different system from a native digital ultrasonic meter.
Electromagnetic configurations
The price list distinguishes LIV-EMF-CS-RTFE-001 integral, LIV-EMF-CS-RD+RTFE-001 remote, and LIV-EMF-CS-RTFE-002 25-bar integral. Standard construction is CS flange/housing, PTFE lining, SS316L electrodes; ±0.5 FSD as written; 4-20 mA/pulse/RS485, with HART treatment varying by document. The 16-bar list gives ANSI B16.5 Class150 and the 25-bar list Class300. These are not interchangeable drillings. [S5 pp.47-48]
Features in the technical sheets: no moving parts, low pressure loss, automatic zero calibration, empty/full-pipe detection, five-segment nonlinearity correction, surge/lightning protection, nominal 0.3-second response, and storage of power/fault history. General options include CS/SS housings, CR/FEP/PTFE/PFA liners, and electrode alternatives including titanium/tantalum. [S9 pp.1-2; S21 pp.1-2]
Conflicts to resolve before use: The same sheet states DN10-1000 in one block and DN15-300 in another; -10 to 100°C in one block and 0-70°C standard/up to 180°C on request in another; IP67/EX in one block and IP65 integral/IP67 or optional IP68 split in another. “EX” alone does not establish explosion protection certification. Minimum conductivity is 1 µS/cm in one block, while another conductivity entry omits the number. Power options include battery/24 VDC/230 VAC, but another block states 85-250 VAC or 20-36 VDC. [S9 p.2]
The remote sheet's table gives DN100 8.4-140 m³/h, while the integral sheet and master list give DN100 8.4-339 m³/h. DN50 is 2.2-35 versus 2.2-84.78. These cannot be silently merged or treated as the same span. Accuracy is also described as FSD in one section and ±0.5% over 0.1-10 m/s in another; percentage of full scale and percentage of reading differ materially at low flow. [S9 p.4; S21 p.3; S5 p.47]
Wiring notes specify a 230 VAC supply, 2-core 1.5 mm² copper power cable, twisted-pair data cable, separate power/data routes, device IDs 1-99 and up to 32 devices per loop. Treat these as that sheet's guidance, not a complete BMS design. Baud rate, parity, map, termination and total bus length are not supplied. [S21 p.4]
Ultrasonic and BTU models
| Item code | Range listed | Main technical characteristics |
|---|---|---|
| LIV-UDWM-BS-R200-001 | 15-40 mm | Brass, BSP screwed, R200, RS485, T50, IP68, 1.6 MPa; claimed 4-5-year battery life |
| LIV-UDWM-DI-R160-002 | 50-300 mm | DI flanged, R160, single path, forward/reverse metering; RS485/M-bus/pulse; T50, IP67, 1.6 MPa; 4-5-year battery claim |
| LIV-UDWM-DI-R250-002 | 350/400/500/600 mm in price table | DI flanged, R250; dual path “above 350 mm”; IP67, T50, 1.6 MPa; clarify whether 350 mm itself is dual path |
| LIV-UDWM-PPR-WOB-R250-001 | 15/20 mm | PPR, screwed, 24 V, no battery, R250, T30, IP68, Class2, MAP16, RS485 |
| LIV-UDWM-PPR-WB-R250-001 | 15/20 mm | As above with battery; battery duration not supplied |
| LIV-UBTUM-BS-R200-001 | 15-40 mm | Brass threaded ultrasonic BTU with temperature sensor; R200, RS485, battery and DC8-24 V |
| LIV-UBTUM-CS-R100-002 | 50-300 mm | CS flanged ultrasonic BTU with temperature sensor; R100, RS485, battery and DC8-24 V |
Sources: S5 pp.49-50; S3 pp.49-50. The master-list contents page labels a flanged range R200, whereas the detailed product block and code specify R160; use the detailed block as the working reference and confirm the order code. Exact Q1/Q2/Q3/Q4, battery capacity, complete communications maps, BTU temperature range and heat-calculation specification are not supplied in these entries.