Class C Brass Single Jet Liquid Sealed Vane Wheel Water Meter
LXS-DF is a brass single-jet liquid sealed water meter for residential application in sizes from 15mm to 25mm for cold water.
Features
*Small, light
*Mechanical transmission movement equates to maximum reliability.
*The chamber of the rollers is liquid filled sealed for protecting the inner parts from the moisture and dust penetration.
*Sealed wet dial register.
*Inlet strainer
*Register can rotate more than 360º for easily reading in any position
Standard Compliance
Technical data conforms to ISO 4064 Class B, Class C, R80, R100, R125, R160 standard for horizontal installation.
Optional Features
*Several lengths and connections available on request
*Reed switch option
*Meter body: Brass and plastic for selecting.
Working Conditions
Water temperature: ≤50ºC for cold water meter
Water temperature: ≤90ºC for hot water meter
Water pressure: ≤1MPa or 1.6MPa optional
(10bar or 16bar optional)
Installation requirements
*The meter should be installed in horizontal position with the direction of the flow as
indicated by the arrow cast in the meter body with the register face upwards.
*Pipeline must be flushed before installation.
*The meter should be constantly full of water during operation.
Maximum Permissible Error
In the lower zone from Qmin(Q1) inclusive up to but excluding Qt (Q2) is ±5%.
In the upper zone from Qt(Q2) inclusive up to and including Qmax(Q4) is ±2%(cold water meter).
In the upper zone from Qt(Q2) inclusive up to and including Qmax (Q4) is ±3% (hot water meter).
Accessories
Each water meter has one set couplings optional: 2pcs tube, 2pcs nut and 2pcs gasket
MAIN TECHNICAL DATA According to ISO4064 :2003 (Old Standard)
| Size | Inch | Class | Qmax | Qn | Qt | Qmin | Min | Max |
| Maximum flow | Nominal flow | Transitional flow | Min flow | Reading | Reading | |||
| DN(mm) | m³/h | L/h | m3 | |||||
| 15 | 1/2" | B | 3 | 1.5 | 120 | 30 | 0.00005 | 99999 |
| C | 22.5 | 15 | ||||||
| 20 | 3/4" | B | 5 | 2.5 | 200 | 50 | 0.00005 | 99999 |
| C | 37.5 | 25 | ||||||
| 25 | 1" | B | 7 | 3.5 | 280 | 70 | 0.00005 | 99999 |
| C | 52.5 | 35 | ||||||
MAIN TECHNICAL DATA According to ISO4064:2005 (New Standard)
| DN | Mm | 15 | 20 | 25 |
| SIZE | Inch | 1/2" | 3/4" | 1" |
| Q4(m³/h) | 3.125 | 5 | 7.875 | |
| Q3(m³/h) | 2.5 | 4 | 6.3 | |
| R80 | Q2(L/h) | 50 | 80 | 126 |
| Q1(L/h) | 31.25 | 50 | 78.75 | |
| R100 | Q2(L/h) | 40 | 64 | 100.8 |
| Q1(L/h) | 25 | 40 | 63 | |
| R125 | Q2(L/h) | 32 | 51.2 | 80.64 |
| Q1(L/h) | 20 | 32 | 50.4 | |
| R160 | Q2(L/h) | 25 | 40 | 63 |
| Q1(L/h) | 15.62 | 25 | 39.37 | |
| Min reading(m³) | 0.00005 | 0.00005 | 0.00005 | |
| Max reading(m³) | 99999 | 99999 | 99999 | |
| Max pressure(MAP) | 16 | 16 | 16 | |
| Max loss(ΔP) | 63 | 63 | 63 | |
| Max temperature | T50 | T50 | T50 | |
| Pulse output option | Vmax=24V, Imax=100mA, Pmax=2W | |||
Dimensions and Weight
| Meter size | Length | Width | Height | Connecting Thread |
| Dia | ||||
| DN | L | B | H | |
| (mm) | mm | D | ||
| 15 | 110 | 79.5 | 84 | G 3/4B |
| 20 | 130 | 79.5 | 84 | G 1''B |
| 25 | 160 | 79.5 | 84 | G 1 1/4 B |