Rotary Mechanical Water Meter LXS-50 BRASS

Key Technical Parameters

Parameter             Value/Description

Nominal Diameter (DN)   50mm

Permanent Flow (Q₃)     25m³/h

Transitional Flow (Q₂)   0.5m³/h

Minimum Flow (Q₁)        0.3125m³/h

Overload Flow (Q₄)        31.25 m³/h

Accuracy Class             Class 2 (±2% high flow, ±5% low flow)

Max. Working Pressure   1.0 MPa (standard)

Temperature Range Cold water meter: 0.1–30°C; Hot water meter (Requires special marking): 30–90°C

Pressure Loss ≤0.063 MPa (at Q₃)

Structure & Working Principle

Components:

• Main Housing: Brass casting or technical polymer (compliant with drinking water standards).
• Impeller (Rotor): Rotates at a speed proportional to flow velocity.
• Gear Transmission System: Translates rotations into mechanical readings.
• Register: Displays accumulated volume via mechanical dial with pointers.

Working Principle

Features

• Precise Measurement: Negligible error with stable performance.
• Pressure Resistance: Rated for ≥1.0 MPa, compatible with standard pipe networks.
• Easy Installation: Threaded fittings (G3/4″ or BSP threads) suitable for domestic plumbing.
• Cost-Efficient: Requires no external power, low maintenance, operational life of ≥6 years (regular calibration recommended).

Applications

• Residential Use: Apartments and household water supply systems.
• Commercial Buildings: Shops, offices, and schools with low flow requirements.
• Public Facilities: Public restrooms and water fountains.

Installation & Maintenance

• Mounting Orientation: Horizontal installation with display facing upwards; align arrow with flow direction.
• Straight Pipe Requirement: Upstream ≥10 pipe diameters, downstream ≥5 pipe diameters; keep elbows and valves away from the meter.
• Protection Measures: Insulate during freezing temperatures; shield from vibrations and magnetic fields (e.g., motors).

Flow Parameters