# Flow switch — FSM-6100

> Electromechanical flow switch for detection of interrupted flow in industrial coolers, heaters, and pipelines with non-corrosive liquids.

- Catalog code: fsm_6100
- Model: FSM-6100
- Category: Flow measurement › Flow switches
- Product page: https://avigan.com.ua/wika/en/products/fsm_6100
- Price: 99.16 EUR
- Supplier: AVIGAN (TOV VIKA Prylad), official WIKA partner in Ukraine

## Overview

The model FSM-6100 electromechanical flow switch is designed for the detection of interrupted flow (“no flow”) of water and other non-corrosive liquids in ...

## Applications

- Heating, cooling, air-conditioning and water treatment plants
- Pumps and dosing systems

## Special features

- Switch point repeatability of ±5 % for reliable switching
- High-quality bellows and microswitch for a service life of > 500,000 cycles
- Rigid paddles from stainless steel to withstand pressure surges and high medium temperatures

## Specifications

| Parameter | Value |
|---|---|
| model | FSM-6100 |
| product family | FSM |
| short description | Electromechanical flow switch for detection of interrupted flow in industrial coolers, heaters, and pipelines with non-corrosive liquids. |
| subcategory | Flow switch |
| certifications | EAC; RoHS; CE |
| ambient temp | -20 … 70 °C |
| ip rating | IP30 |
| weight kg | 0.41 |
| languages in datasheet | en |
| technology | turbine |
| flow ranges | 15 … 50 l/min; 25 … 60 l/min; 45 … 100 l/min; 50 … 110 l/min; 50 … 140 l/min; 60 … 160 l/min; 100 … 240 l/min; 110 … 260 l/min; 50 … 160 l/min; 60 … 180 l/min; 225 … 480 l/min; 230 … 520 l/min; 140 … 320 l/min; 150 … 340 l/min; 320 … 750 l/min; 380 … 860 l/min; 210 … 550 l/min; 225 … 635 l/min; 105 … 320 l/min; 115 … 340 l/min; 500 … 1400 l/min; 590 … 1700 l/min; 350 … 1100 l/min; 400 … 1300 l/min; 200 … 580 l/min; 230 … 680 l/min; 730 … 1750 l/min; 1030 … 2100 l/min; 500 … 1500 l/min; 650 … 2050 l/min; 400 … 1000 l/min; 475 … 1250 l/min; 300 … 800 l/min; 330 … 930 l/min; 2650 … 3000 l/min; 2750 … 3100 l/min; 850 … 2400 l/min; 990 … 2600 l/min; 650 … 1800 l/min; 750 … 1900 l/min; 350 … 1450 l/min; 450 … 1550 l/min; 320 … 1000 l/min; 15 … 150 l/min; 45 … 200 l/min; 50 … 350 l/min; 100 … 450 l/min; 140 … 450 l/min; 225 … 1000 l/min; 320 … 1300 l/min; 550 … 1000 l/min; 500 … 2500 l/min; 1100 … 2000 l/min; 580 … 2000 l/min; 730 … 3200 l/min; 1500 … 3200 l/min; 1000 … 3200 l/min; 800 … 3200 l/min; 2650 … 4000 l/min; 2400 … 4000 l/min; 1800 … 3200 l/min; 1450 … 3200 l/min |
| pipe diameter mm | 150 |
| accuracy percent | 5 |
| process connections | 1" NPT, male per ASME B1.20.1; 1" BSPT, male per ISO 7; 1" NPT, male; 1" BSPT, male |
| wetted parts material | Stainless steel 316; Phosphor bronze; NBR; Brass (ASTM B455 C38500); Nickel-plated; Brass (ASTM B455 C38500) Nickel-plated; Brass (ASTM B455 C38500), nickel-plated |
| process temp | -20 … 100 °C |
| process pressure max bar | 10 |
| output signal | 1 x SPDT (single pole double throw); 1x SPDT (single pole double throw) |

## Datasheet tables

### Basic information

| Connection location | Horizontal and vertical pipe mounting Flow direction in line with the arrow marking on the process connection |
|---|---|
| Case | Plastic (ABS) ■ Blue (RAL 5022) ■ Red (RAL 3028) |

### Sensor element

| Type of measuring element | Paddle |
|---|---|
| Material | Stainless steel 316 and bellows from phosphor bronze |

### Process connection

| Thread size | ■ 1" NPT, male per ASME B1.20.1 ■ 1" BSPT, male per ISO 7 |
|---|---|
| Connection location | Lower mount |
| Material | Brass (ASTM B455 C38500) Nickel-plated |
| Sealing | NBR |

### Output signal

| 1 | 2 | 3 |
|---|---|---|
| Switching function | 1 x SPDT (single pole double throw) |  |
| Setting range of the switch points | → See table 'Setting range of the switch points' |  |
| Switch point repeatability | ±5 %of span |  |
| Contact material | Silver alloy, UL-certified |  |
| Electrical rating AC |  |  |
| Resistive load | 125V | 15 A |
| 250V | 15 A |  |
| Inductive load | 125V | 15 A |
| 250V | 15 A |  |
| Electrical rating DC |  |  |
| Resistive load | 125V | 0.5 A |
| 250V | 0.25 A |  |
| Inductive load | 30V | 5 A |
| 125V | 0.05 A |  |
| 250V | 0.03 A |  |

### Electrical connection

| Connection type | M16 via feed-through grommet |
|---|---|

### Operating conditions

| Medium temperature range | -20 …+100 °C [-4 …+212 °F] |
|---|---|
| Ambient temperature range | -20 ...+70 °C [-4 ...+158 °F] |
| Storage temperature range | -20 ...+70 °C [-4 ...+158 °F] |
| Max. operating pressure | 10 bar |
| Overpressure limit | 15 bar |
| Permissible media | Water, ethylene glycol and other liquids that are not corrosive to brass, phosphor bronze and nitrile materials |
| Ingress protection (IP code) per IEC 60529 | IP30 |

### Operating conditions

| Service life | > 500,000 cycles |
|---|---|
| Weight | Approx. 400 to 420 g, depending on setting range |

| 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|
| Nominal bore inmm [in] | Length of paddle combinations (L) inmm | Switch point with decreasing flow in l/min | Switch point with increasing flow in l/min | Max.operating flow in l/min |  |  |
| Minimum | Maximum | Minimum | Maximum |  |  |  |
| 25 [1] | 28 | 15 | 50 | 25 | 60 | 150 |
| 32 [1.25] | 28 | 45 | 100 | 50 | 110 | 200 |
| 40 [1.5] | 28 | 50 | 140 | 60 | 160 | 350 |
| 50 [2] | 37 | 100 | 240 | 110 | 260 | 450 |
| 37 + 50 | 50 | 160 | 60 | 180 | 450 |  |
| 65 [2.5] | 37 | 225 | 480 | 230 | 520 | 1,000 |
| 37 + 50 | 140 | 320 | 150 | 340 | 1,000 |  |
| 80 [3] | 37 | 320 | 750 | 380 | 860 | 1,300 |
| 37 + 50 | 210 | 550 | 225 | 635 | 1,000 |  |
| 37 + 50 + 80 | 105 | 320 | 115 | 340 | 1,000 |  |
| 100 [4] | 37 | 500 | 1,400 | 590 | 1,700 | 2,500 |
| 37 + 50 | 350 | 1,100 | 400 | 1,300 | 2,000 |  |
| 37 + 50 + 80 | 200 | 580 | 230 | 680 | 2,000 |  |
| 125 [5] | 37 | 730 | 1,750 | 1,030 | 2,100 | 3,200 |
| 37 + 50 | 500 | 1,500 | 650 | 2,050 | 3,200 |  |
| 37 + 50 + 80 | 400 | 1,000 | 475 | 1,250 | 2,000 |  |
| 37 + 50 + 80 + 100 | 300 | 800 | 330 | 930 | 2,000 |  |
| 150 [6] | 37 | 2,650 | 3,000 | 2,750 | 3,100 | 4,000 |
| 37 + 50 | 850 | 2,400 | 990 | 2,600 | 4,000 |  |
| 37 + 50 + 80 | 650 | 1,800 | 750 | 1,900 | 3,200 |  |
| 37 + 50 + 80 + 100 | 350 | 1450 | 450 | 1,550 | 3,200 |  |

| Logo | Description | Country |
|---|---|---|
|  | EU declaration of conformity | European Union |
|  | EAC | Eurasian Economic Community |

| Model | Description | Order number |
|---|---|---|
| Cable gland with nut | M16 x 1.5 x 8 from PA6 Colour:RAL9005 | 85500944 |

## Documents

- [ds_fl6001_en_co_9092c7](https://avigan.com.ua/wika/docs/wika/ds_fl6001_en_co.pdf) — PDF, 333 KB, en