Water meters MJ-R160-P
R160 Multi Jet Water Meter, Pulse-Ready
The R160 multi-jet in brass, supplied ready for remote reading.
- Nominal size
- DN15 DN20 DN25 DN32 DN40
- Q3 permanent flow
- 2.5 m³/h 4 m³/h 6.3 m³/h 16 m³/h 25 m³/h
- R value (Q3/Q1)
- 160 160 160 160 160
- Accuracy class
- 2 2 2 2 2
Select nominal size (DN)
Specifications update with the selected size.
Overview
Why buyers choose it
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The second phase stays cheap
Reading hardware clips on later, so automation does not mean pulling meters out of riser cupboards.
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Inductive, not a reed switch
No contact to wear out, and no counts to be added by a magnet held against the body.
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Brass body
Specified where a plastic body will not survive the installation or the inspection.
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R160 at class 2
The same declared metrology as the standard dry dial meter, so the two are interchangeable on a schedule.
In detail
This is the brass-bodied R160 multi-jet supplied with its inductive sensor already fitted. The metering is unchanged — DN15 to DN40, class 2 across an R160 turndown, 16 bar — and what is added is the ability to read it without sending anybody.
Buying meters pulse-ready is a decision about the second phase of a scheme rather than the first. Meters go in when the block is built; the reading system arrives when the budget does, often years later. A meter with no provision has to be removed to gain it, and in a riser cupboard or a buried box that cost is what quietly kills the automation phase.
The pickup is inductive, so unlike a reed switch it cannot be triggered by a magnet held against the body, and there is no contact to wear out. A non-return valve is available, and the meter is provided with wire and lead seal.
Pulse outputs of 1 or 10 litres per pulse can be specified, and an IP68 version is available for meter chambers that flood.
Technical specifications
Selected size: DN15 DN20 DN25 DN32 DN40
Values shown apply to the selected size. A dash means the figure is not stated.
Metrological
| Nominal size | DN15 DN20 DN25 DN32 DN40 |
|---|---|
| R value (Q3/Q1) | 160 |
| Accuracy class | 2 |
| Register type | Multi jet, dry dial, vacuum sealed, pulse-ready |
| Maximum permissible error, Q1 to Q2 | ±5% |
| Maximum permissible error, Q2 to Q4 | ±2% for water having a temperature ≤30℃; ±3% for water having a temperature >30℃ |
| Indicating range | 99,999 |
| Resolution of indicating device | 0.00005 |
Hydraulic
| Q3 permanent flow | 2.5 m³/h 4 m³/h 6.3 m³/h 16 m³/h 25 m³/h |
|---|---|
| Q1 minimum flow | 0.015625 m³/h 0.025 m³/h 0.039375 m³/h — — |
| Maximum working pressure | 16 bar |
| Pressure loss class | ΔP63 |
| Q2 transitional flow | 0.025 m³/h 0.04 m³/h 0.063 m³/h — — |
| Q4 overload flow | 3.125 m³/h 5 m³/h 7.875 m³/h — — |
| Flow profile sensitivity class | U0 D0 |
Materials
| Body material | Brass |
|---|
Environmental
| Temperature class | T30 and T50 |
|---|
Approvals
| Standards | ISO 4064, OIML R49 |
|---|
Dimensions and installation
| Connection thread | G3/4" B G1" B G1 1/4" B G1 1/2" B G2" B |
|---|---|
| Length | 165 mm 190 mm 260 mm 260 mm 300 mm |
| Weight | 0.82 kg 1.1 kg 1.8 kg 1.8 kg 2.9 kg |
| Orientation limitation | Horizontal |
| Height | 100 mm 100 mm 110 mm 110 mm 120 mm |
| Width | 81 mm 81 mm 86 mm 86 mm 115 mm |
Parts
Parts of a multi-jet meter
How a meter of this type is built, and what this model is made of.
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Lid
Caps the register and keeps water and debris off the dial.
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Register
Totalises and displays the water passed.
Register type Multi jet, dry dial, vacuum sealed, pulse-ready
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Register ring / seal
Seals the register housing against water ingress.
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Measuring chamber insert (with jets)
Directs several jets onto the impeller from multiple sides for balanced, even wear.
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Impeller
Turns with the combined jets and drives the register.
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Strainer
Screens out grit and debris before the measuring element.
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Body
Houses the measuring element and carries the flow.
Body material Brass
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Tailpieces / connections
Threaded couplings that join the meter to the pipework.
Connection thread G3/4" B G1" B G1 1/4" B G1 1/2" B G2" B
Download centre
Everything you need to specify.
Documents for the R160 Multi Jet Water Meter, Pulse-Ready.
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Technical datasheet
Specifications and dimensions for DN15.
Specifications and dimensions for DN20.
Specifications and dimensions for DN25.
Specifications and dimensions for DN32.
Specifications and dimensions for DN40.
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Download PDF (Opens in a new tab)
All sizes datasheet
Every size in one sheet.