WESAN WS G
WOLTMAN METER
Application
WESAN WS G is a bulk water meter designed for measuring volumes of cold water (up to 50°C) in supply lines with high flow at low pressure loss. Modular, WESAN WS G DN50 to 150 can be fitted at any time with an IZAR clip-on module converting it into a communicating meter ready for mobile or fixed network (radio/wired) reading.
The measuring chamber can be replaced without removing the meter from the pipe.
Features
- DN50/65/80/100/150
- Q3=25m3/h (DN50) / Q3=40m3/h (DN65) / Q3=63m3/h (DN80) / Q3=100m3/h (DN100) / Q3=250m3/h (DN150)
- MID approval up to R=40
- For horizontal installation
- Calibratable and exchangeable measuring insert
- Sealed measuring insert for better accuracy
- Encapsulated and rotating glass/copper register, IP 68
- Hydraulic bearing relief
- Protection against magnetic fraud
-
General
Medium temperature range °C +1 ... +30 Temperature safety °C +1 ... +50 Ambient operating temperature °C +1 ... +55 Ambient storage temperature °C +1 ... +55 Nominal pressure PN bar 161 Protection class IP 68 1 see also special versions -
Technical data
Nominal diameter DN mm 50 65 80 100 150 Permanent flow rate Q3 m3/h 25 40 63 100 250 Minimum flow rate Q1 m3/h 0.63 1 1.58 2.5 6.25 Transitional flow rate Q2 m3/h 1 1.6 2.52 4 10 Overload flow rate Q4 m3/h 31.25 50 78.75 125 312.5 Starting flow rate l/h 60 60 90 90 150 Flow rate at 0.1 bar pressure loss m3/h 21 22 55 60 143 Pressure loss at Q3 bar 0.14 0.34 0.13 0.28 0.31 -
Approval
Nominal diameter DN mm 50 65 80 100 150 MID (A 0445/3505/2011) • • • • • Dynamic range (Q3/Q1) R 40•H 40•H 40•H 40•H 40•H Sanitary conformity KTW / W270 KTW / W270 KTW / W270 KTW / W270 KTW / W270 -
Display range
Nominal diameter DN mm 50 65 80 100 150 0.5 l ... 999,999 m³ • • • • 5.0 l ... 9,999,999 m³ • -
Dimensions
Nominal diameter DN mm 50 65 80 100 150 Overall length (DIN 19625) L mm 270 300 300 360 430 / 500 Overall length (DIN ISO 4064) L mm 300 300 350 350 500 Flange diameter D mm 165 185 200 220 285 Hole circle diameter K mm 125 145 160 180 240 Number of screwholes pcs 4 4 4 / 8 8 8 Screwhole diameter D1 mm 18 18 18 18 23 Height H mm 85 97 102 113 141 Height L mm 135 135 180 190 351 Height to remove measuring insert mm 240 240 330 340 620 Diameter Ø B mm 110 110 110 110 110 Meter width mm 173 173 239 239 310 Weight kg 14.5 17.7 24 28 79.5 -
Special versions
On request:
- Versions with different nominal pressure
- Flange for ANSI and BS
- Special pulse values
- Special overall lengths -
Presure loss graph / Typical error graph
Pressure loss graph
Typical error graph
