Elektromagnetic flow meters

Electromagnetic flow meters with „W-ss“ flow tube – wafer design

The Wss (wafer, stainless steel) flow meters are only made with flowtubes in stainless steel housing and with stainless steel contact surfaces. They are thus suitable to measure flow in chemically aggressive liquids or for installation in corrosive environments or otherwise difficult conditions. The other parameters are identical with those of the W flowtube meters.

They too are designed to be installed between flanges. They are installed between two connecting flanges and tightened with bolts.

They are made with inner diameters from DN10 to DN80 are are primarily designed for chemical and food processing applications.

Their flowtubes are only made with Teflon liner and with a choice from several sensing electrode materials (316L stainless steel, Hastalloy C, titanium, …).

The components in installation sets are all made of stainless steel. Installation sets may equally be custom specified with respect to installation length and type of connection (DIN 11851 threading for food industry, DIN 32676 clamp, etc.)

Earthing rings are also available if required.

All materials to be in contact with the medium under measurement are certified for permanent contact with drinking water (edibles) and hot utility water.

These flow meters are convenient to measure acid or alkaline solutions as well as various kinds of chemicals (lyes, acids, ammonia, hydrogen chloride, cleaning agents, …).


FG4000 flow meter specifications:

Display:YES (2x16 chars)NO
Measuring range:1 :40 ( ±0,5% for MPE standard); 1:500 (Q0=0,2% Qmax)
Accuracy:± 0.5 % (± 0.003 m/s) in range from Qmin do Qmax
Minimum liquid conductivity:>5ųS/cm – common liquids; ≥20ųS/cm – demineralized water
Power supply:230 VAC (+10;−15%) 50–60Hz; optionally 120VAC, 24VAC, 24VDC
Power demand:10 VA
IEC 536 protection class:I
Ingress protection rating:IP67
Meter finish:powder paint (RAL 8023)
Ambient temperature rangé:0–70°C; recommended 15–55°C
Pulse output 1:in range 0.0001–1600 p/dm3 (maximum value depends on flowtube inner diameter)
Pulse output 2:state – signalization of the negative flow; pulse – negative volume (bidirectional flow)
Pulse inputs:2× range (0.0001–1000 p/dm3) to display flow and/or volume measured by external
Empty pipeline indication:yes (optional)
Communication modules:RS485, RS422, RS232, M-Bus, ... (optional)
Communication protocols:SIMPLE, ModBUS, BitBUS, ASCII , MBUS
Analogue outputs:4-20 mA, 0-10 V (optional)
Archive:hourly, daily, monthly, errors,.. (optional)

Wafer flowtube specification:

Flowtube nominal inner diameter:DN10 – DN100
Flowtube liner:PTFE – teflon
Electrodes:316L grade (1.4571) stainless steel; Hastelloy C; platinum; tantalum; titanium
Nominal pressure:PN25
Flowtube design:compact; split – 4m cabling (optionally up to 40m)
Flowtube finish:brushed stainless steel
Temperature of the measured liquid:0 - 150°C
Ingress protection rating:IP67

Table of included inner diameters:

FG 4000Wafer flowtubes „W-ss“
Q0 (m3/h)0,010,020,030,040,070,110,170,290,430,68
Q1 (m3/h)0,080,190,340,530,871,362,123,585,438,48
Q3 (m3/h)3,397,6313,621,234,754,384,8143217339


DN– Flowtube nominal inner diameter
Q0– Starting flow
Q1– Minimal flow
Q3– Maximal flow
k– Maximal constant of flow conversion

Rozměry a hmotnosti nerezových mezipřírubových snímačů:

DNPNA∅B∅CDEFSvorníkym [kg]
1025100 (66)751052507575M12x1704x4,5
1525100 (66)751052507575M12x1704x5
2025100 (66)75105300100100M12x1704x5
5025110 (108)125160510250150M16x1754x7,5
8025160 (163)160195800400240M16x1958x10,5
10025160 (162)190230960500300M20x2458x12,5