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Brand: Sensus
Sensus WPV-MS 150 Compound Water Meter DN 150
Description
The Sensus WPV-MS 150 is a DN 150 compound water meter for cold water, with a main meter for high flows and a by-pass meter for very low flows. It has MID pattern approval, needs no straight pipe upstream or downstream because of its integrated flow straightener, and uses a spring-loaded change-over valve with low head loss and extended lifetime. The sheet describes it as ideal for fire service pipes, and for installations with an extremely wide spread of flow rates.
Technical specifications
| Parameter | Specification |
|---|---|
| Product | Sensus WPV-MS 150 compound water meter, cold water up to 50 degC (T30 class), DN 150 |
| Pattern approval | MID 2014/32/EU annex MI001, DE-14-MI001-PTB002; marking CE M-XX 0102; temperature class T30 |
| Nominal diameter and pressure | DN 150; PN 16 |
| Installation | Horizontal; no straight upstream or downstream pipe needed (integrated flow straightener, U0D0) |
| Meter construction | Main turbine-type meter with cast iron body; by-pass rotary piston meter RK-MS HRI Q3 16 (brass body, DN 40); plastic measuring elements and rotors; spring-loaded change-over valve of plastic and stainless steel |
| Protection | IP68, can be submerged; copper/glass register on the by-pass meter; powder coating for corrosion protection |
| Medium | Cold water, materials resistant up to 50 degC |
| Pulse values, main meter | HRI-Mei 0.1, 1 or 10 m3; OD 01: 0.01 m3; OD 03: 0.1 m3; with encoder register HRI 1 or 10 m3 |
| Pulse values, by-pass meter | HRI-Mei 0.01, 0.1 or 1 m3; OD 01: 0.001 m3; OD 03: 0.01 m3; with encoder register HRI 0.1 or 1 m3 |
| Options | Pulse and data interface HRI-Mei and pulsers OD on main and by-pass meters; overall length per DIN with spool piece; ER56 encoder register |
| Order example | WPV-MS DN 150 T30 16 (type, nominal diameter, working temperature, working pressure, flange drilling EN 1092 PN 16, with or without spool piece) |
Performance data
| Parameter | According to MID pattern approval | According to manufacturer data |
|---|---|---|
| Maximum peak flow | Q4 315 m3/h | Qs 600 m3/h |
| Continuous flow | Q3 250 m3/h | Q3′ 400 m3/h |
| Transitional flow Q2 (m3/h) | 0.16 | 0.15 |
| Minimum flow Q1 (m3/h) | 0.1 | 0.035 |
| Change-over flow (increasing / decreasing) | Qx2 8.3 / Qx1 4.7 m3/h | – |
Dimensions and weight
| Dimension | Value |
|---|---|
| Overall length L1 | 500 mm |
| Length with spool piece L | 1000 +/-40 mm |
| Height H / to axis h / dismantling g | 177 / 135 / 356 mm |
| Width B / b | approx. 275 / 145 mm |
| Weight meter / spool piece | 60 kg / 32 kg |
Main meter and by-pass meter
The main meter is cast iron with a plastic measuring element and rotor, while the by-pass meter is specified as a rotary piston meter, type RK-MS HRI, in a brass body with a copper and glass register in protection class IP68. At low flow all water passes through the by-pass, and as flow rises past the change-over flow (8.3 m3/h increasing, 4.7 m3/h decreasing under the MID pattern approval) the valve opens to the main meter. This gives a minimum flow Q1 of 0.1 m3/h under MID and, by the manufacturer’s values, 0.035 m3/h, which makes it suitable for measuring small flows for leakage detection while still passing high flows. Both meters can be fitted with HRI-Mei or OD pulse interfaces, or an ER56 encoder register.
Selection and installation
Check the two performance tables carefully: the MID values (Q3 250 m3/h) are the legally approved ones, while the manufacturer values (continuous flow 400 m3/h and peak flow Qs 600 m3/h) describe the hydraulic capacity. The meter must be installed horizontally and the standard overall length is 500 mm, with a version with a spool piece of about 1000 mm for fitting in a line where a longer length is needed. Weight is 60 kg for the meter and 32 kg for the spool piece, so lifting equipment is likely to be required. Materials are resistant up to 50 degC, the temperature class is T30, and the meter can be submerged. Confirm the flange drilling, pulse values and approvals required by the supply authority.
Documents and quotation
The linked file is the four-page Sensus WPV-MS 150 data sheet LB 1720 INT. Before ordering confirm the flange drilling, the use of the spool piece, the pulse or encoder options, the temperature class and the approvals needed. See also related flowmeters. Seven Star LLC, an independent supplier in Muscat, will prepare a quotation from your project requirements.
See also: Sensus 620 Volumetric Water Meter Dry Dial DN 15-40; Sensus iPERL Static Electromagnetic Water Meter.
Datasheets & Documents
- Datasheet Sensus WPV-MS 150 data sheet (LB 1720 INT) Download
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About brand
Sensus is a maker of water, gas and electricity meters and the networks that read them, headquartered in Raleigh, North Carolina. Xylem agreed to buy Sensus in August 2016 for about 1.7 billion US dollars, adding smart metering and advanced metering infrastructure to its water technology business. At the time Sensus had more than 80 million metering devices installed worldwide.
Seven Star LLC is an independent supplier in Muscat. We list Sensus meters backed by the manufacturer data sheets for utilities, developers and facility teams in Oman and the GCC.
Sensus company profile
| Headquarters | Raleigh, North Carolina, USA |
|---|---|
| Ownership | Xylem, after an agreement announced in August 2016 |
| Deal value | About 1.7 billion US dollars |
| Installed base | More than 80 million metering devices worldwide (2016) |
| Product families | iPERL electromagnetic and Cordonel ultrasonic static water meters, 620 volumetric meters, bulk and woltman meters, gas and electricity meters, FlexNet AMI communication network |
Sensus product series
Static meters include the iPERL electromagnetic water meter and the iPERL+ smart meter (documented in US units and standards), and the Cordonel ultrasonic meter for DN 40 to 200. Residential and sub-metering meters include the 620 volumetric meter with dry dial, the 640 with electronic register, the 420 and 420PC multijet meters and the DomoJet single jet meter.
For larger flows there are the WP-Dynamic Woltmann turbine meter for DN 40 to 300, the WPV-MS 150 compound meter and the MeiStream Plus bulk meter for DN 40 to 150.
Where Sensus meters are used
Utility billing for homes and buildings, bulk supply and district metering, sub-metering in compounds and towers, and irrigation and industrial water metering.
Sensus products we list
Ordering Sensus meters: what we need
Send the DN, connection or flange drilling, lay length, ratio, temperature class, the approvals your utility requires (MID, OIML R49, ISO 4064 or potable water approvals) and the radio or register option.
Facts checked against Xylem's 2016 announcement and financial press, October 2026.
Browse Sensus products by category: Flowmeters.
Related products
Frequently Asked Questions
What is a compound meter?
A meter that combines a main meter for high flows with a by-pass meter for low flows; the WPV-MS 150 changes over with a spring-loaded valve.
Does it need straight pipe sections?
No. The integrated flow straightener means no straight upstream or downstream pipe is required.
What size is the WPV-MS 150?
DN 150 at PN 16.
Can it be used on fire service lines?
The data sheet describes it as ideal for fire service pipes.
What temperature class does it have?
T30 under the MID pattern approval, with materials resistant to 50 degC.
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