
Tongtuo presents the LXH/P series Plastic Volumetric Rotary Piston Water Meter, engineered as the ultimate Domestic Water Meter solution for accurate household billing. This advanced Water Meter for House applications combines volumetric measurement precision with durable polymer construction, ensuring reliable performance in residential water systems.
Key Features
Volumetric Measurement Technology
Positive displacement rotary piston mechanism delivers ±1% accuracy across all flow rates (0.03-3m³/h), ensuring precise billing for household consumption
Domestic Water Meter Optimization
Compact DN15 and DN20 sizes specifically designed for residential plumbing systems and space-constrained installations
Advanced Pulse Output Options
Choose from three configurations: non-pulse, standard pulse output (1L or 10L/pulse), or pre-equipped pulse output for future smart system upgrades
Food-Grade Material Construction
All components manufactured with high-quality technical plastics and stainless steel parts, ensuring safety for potable water systems
Multi-Position Installation
Suitable for horizontal, vertical, or angled installation without affecting measurement accuracy
Non-Return Valve Protection
Integrated check valve prevents reverse flow measurement, ensuring billing accuracy and system protection
Technical Specifications
|
Parameter |
Specification |
|
Model Series |
LXH/P-15 to LXH/P-20 |
|
Type |
Plastic Volumetric Rotary Piston Water Meter |
|
Sizes Available |
DN15 (½"), DN20 (¾") |
|
Accuracy Class |
R=160 (ISO 4064) |
|
Pulse Options |
Non-pulse, Pulse Output, Pre-equipped Pulse Output |
|
Pulse Values |
1L/pulse or 10L/pulse configurable |
|
Max Temperature |
50°C (Cold Potable Water) |
|
Pressure Rating |
1.6MPa (PN16) |
Non-Pulse Version: Basic mechanical reading for traditional applications
Pulse Output Version: Active pulse output (reed switch) for immediate AMR integration
Pre-equipped Version: Pulse-ready design for future upgrade without meter replacement
Main Technical Data ISO4064
|
Type |
LXH-15S |
LXH-20S |
|
Size(mm) |
DN15 |
DN20 |
|
Class |
Class C |
Class C |
|
Qmax(m3/h) |
3 |
5 |
|
Qn(m3/h) |
1.5 |
2.5 |
|
Qt(m3/h) |
22.5 |
37.5 |
|
Qmin(L/h) |
15 |
25 |
|
Min. Reading |
0.0001 |
0.0001 |
|
Max. Reading |
9999 |
9999 |
Max. Permissible Error
±5% at the Low-Zone ranging from min flow/Qmin (including Qmin) to
transitional flow/Qt (excluding Qt).
±2% at the High-Zone ranging from transitional flow/Qt to max flow/QS (both Qt and Qs
included), if for hot water meter, ±3% error acceptable.

Dimension
|
Type |
Size |
Length |
Height |
Length with Connectors |
Connecting Thread |
Weight |
|
mm |
L |
H |
L1 |
D |
Kg |
|
|
LXH-15S |
15 |
115 |
85 |
191 |
G 3/4B |
0.95 |
|
LXH-20S |
20 |
130 |
85 |
228 |
G 1B |
1.2 |
Why Choose This Water Meter for House Applications?
This Plastic Volumetric Rotary Piston Water Meter represents the gold standard for residential water measurement. The positive displacement technology ensures unmatched accuracy even at extremely low flow rates, while the plastic construction eliminates corrosion concerns. As a dedicated Water Meter for House installations, it provides homeowners and property managers with reliable, maintenance-free operation and precise consumption data.
Applications
• Single-family residence water measurement
• Apartment building submetering
• Vacation home water systems
• Residential community water allocation
• Small commercial property monitoring
Contact Our Residential Water Solutions Team
Email: junetang@nbtongtuo.com



