Indoor Water Meter
Horizontal Volumetric Rotary Piston Water Meter Class D/R315
LXH-E is a horizontal volumetric water meter with the mechanical transmission and dry register, for residential application in sizes 15mm-20mm for cold water.
Features
* Ensures high sensitivity and accurate registration throughout a wide flow range.
* Low starting flow rate and excellent metrological performance.
* Magnetic drive, lower transmission resistance.
* Magnetic shield use for external magnetic field protection.
* Evacuated and sealed dry dial register ensures clear reading.
* Internal strainer
* Inlet strainer Standard Compliance Technical data conforms to ISO 4064 Class C, Class D, R160, R200 and R315 standard.
Optional Features
*Meter body: Brass, plastic for selecting.
*Can be equipped with reed switch option.
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 can be installed in any position.
* Pipeline must be flushed before installation.
* The meter should be constantly full of water during operation.
* The meter must be installed with the direction of the flow as indicated by the arrow cast in the meter body.
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 | Class | Qmax | Qn | Qt | Qmin | Min reading | Max reading |
| Maximum flow | Nominal flow | Transitional flow | Min flow | ||||
| DN(mm) | m³/h | L/h | m³ | ||||
| 15 | C | 3 | 1.5 | 22.5 | 15 | 0.00005 | 99,999 |
| D | 17.2 | 11.2 | |||||
| 20 | C | 5 | 2.5 | 37.5 | 25 | 0.00005 | 99,999 |
| D | 28.7 | 18.7 | |||||
MAIN TECHNICAL DATA According to ISO4064:2014 (New Standard)
| Size | Class | Q4 | Q3 | Q2 | Q1 | Min reading | Max reading |
| Maximum flow | Nominal flow | Transitional flow | Min flow | ||||
| DN(mm) | m³/h | L/h | m³ | ||||
| 15 | R160 | 3.125 | 2.5 | 25 | 15.625 | 0.00005 | 99,999 |
| R200 | 20 | 12.5 | |||||
| 20 | R160 | 5 | 4 | 40 | 25 | 0.00005 | 99,999 |
| R200 | 32 | 20 | |||||
Dimensions and Weight
| Meter Size | Length (L) | Width (W) | Height (H) | Connecting Thread |
| mm | mm | D | ||
| 15 | 165 | 95 | 115 | G 3/4B |
| 20 | 190 | 100 | 121 | G 1B |
L1: the total length with connection and the gasket without compression.
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