Hot Water Meter
(Tangential Flow Wheel Type Model NKHL/NKHA/GKHL/GKHA)
Feature
Direct Reading Hot Water Meter
Hot water meter is helpful for energy management, centralized billing and central automation control for housing complex, hotels, factories etc.
Built-in Pulse Transmitter Type
Hot water meter with built-in pulse transmitter has two wired type of voltage free normal open contact.
Specification
| Diameter (mm) | 15 | 20 | 25 | 32 | 40 | |
|---|---|---|---|---|---|---|
| R=Q3/Q1 (Dynamic Range) | 25 | 40 | 40 | 25 | 25 | |
| Q1 (Nominal Minimum Flow Rate) (m³/h) | 0.064 | 0.1 | 0.1 | 0.4 | 0.4 | |
| Q2 (Changeover Flow Rate) (m³/h) | 0.1024 | 0.16 | 0.16 | 0.64 | 0.64 | |
| Q3 (Nominal Permanent Flow) (m³/h) | 1.6 | 4 | 4 | 10 | 10 | |
| Q4 (Maximum Flow Rate) (m³/h) | 2 | 5 | 5 | 12.5 | 12.5 | |
| Maximum Allowable Operating Pressure (Mp) | 1 | |||||
| Maximum Allowable Operating Temperature (°C) | 90 | |||||
| Indicator | Format | 8 digit Direct Reading (m³-5 digit, l-3 digit) | ||||
| Slant / Direction | 45° slanted indicator / 360° arbitrarily-rotated | |||||
| Minimum Scale (l) | 0.2 | |||||
| Maximum Cumulative Flow (m³) | 99,999 | |||||
| Construction | Sealed | |||||
| Casing Material | CAC804 (No Painting) | |||||
Size / External View
| Diameter (mm) | 15 | 20 | 25 | 32 | 40 | |
|---|---|---|---|---|---|---|
| Model No. | NKHL · GKHL | NKHA · GKHA | NKHL · GKHL | NKHA · GKHA | NKHA · GKHA | |
| Length (mm) (L) | 165 | 190 | 225 | 230 | 245 | |
| Total Height (mm) (H1) | 146 | 162 | 162 | 163 | 168 | |
| Connection Center from Bottom (H2) | 23 | 35 | 35 | 40 | 45 | |
| Width (mm) (W) | 90 | 98 | 98 | 108 | 108 | |
| D | Nominal Diameter, No. of Thread／ 25.4mm (D) | G 3/4 (26.4 · Thread 14) |
G1 (33.2 · Thread 11) |
G1 1/4 (41.9 · Thread 11) |
G1 1/2 (47.8 · Thread 11) |
G2 (59.6 · Thread 11) |
| Weight (kg) | 1.1 | 1.9 | 2.2 | 3.0 | 3.5 | |
[NKHL 15mm]
[NKHA 20～40mm]
