FSM-BSV

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WIKA · Flow measurement · Family FSM

Flow switch, mechanical

Name: Flow switch, mechanical
Brand: WIKA
SKU: FSM-BSV

For continuous fluid measurement without power supply

Range

0.3…500 L/min

Output

1 x SPDT · 2 x SPDT

Protection

IP65

CERoHSLow Voltage Directive

Price

On request

Depends on configuration

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Description

The model FSM-BSV flow switch is designed for flow indication and monitoring of liquids in cooling circuits and systems of welding machinery, laser and pipeline systems, dosing systems, pumps, compressors, hydraulic systems, high-pressure plants and many more.

Based on the piston working principle, a float (piston), with its integrated magnet, is moved by the medium in the direction of the flow within a cylindrical slotted nozzle or measuring tube. When the switch contact position is reached, the float stops.

Special features

High switching accuracy and functional safety
Switch point repeatability of ±5 %
Large switching range, low switch hysteresis
Viscosity-compensated models available
Continuous switch point setting by the user

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DIN (DIN EN 175 301-803-A)M12 connector

Your configuration

Line size8 DN
Flow Range0,3 -3 lpm, maximum working flow 6 lpm
Process connections size1/4"
Thread typeBSP-F
Sensor housingNickel plated brass
DialWith dial
Switching function1 x SPDT
Area classificationStandard for safe area
Electrical connection—
Switch enclosureGF Nylon
Maximum operating pressure100 bar

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Identification

Model	FSM-BSV
Product family	FSM
Subcategory	Mechanical flow switch

Measuring range

Flow ranges	0.3…3 L/min · 0.5…5 L/min · 1…8 L/min · 2…12 L/min · 5…25 L/min · 7…35 L/min · 10…40 L/min · 12…40 L/min · 20…60 L/min · 25…60 L/min · 30…90 L/min · 40…110 L/min · 50…150 L/min · 60…230 L/min · 75…175 L/min · 90…220 L/min · 100…200 L/min · 180…330 L/min · 330…500 L/min · 40…85 L/min
Pipe diameter	80 mm

Accuracy

5 %

Process conditions

Process connection	1 NPT, female thread2 NPT, female thread1 BSP, female thread2 BSP, female thread3 BSP, female thread¼ NPT, female thread⅜ NPT, female thread½ NPT, female thread¾ NPT, female thread1 ¼ NPT, female thread1 ½ NPT, female thread2 ½ NPT, female thread¼ BSP, female thread⅜ BSP, female thread½ BSP, female thread¾ BSP, female thread1 ¼ BSP, female thread1 ½ BSP, female thread2 ½ BSP, female thread1/4 NPT, female thread3/8 NPT, female thread1/2 NPT, female thread3/4 NPT, female thread1 1/4 NPT, female thread1 1/2 NPT, female thread2 1/2 NPT, female thread1/4 BSP, female thread3/8 BSP, female thread1/2 BSP, female thread3/4 BSP, female thread1 1/4 BSP, female thread1 1/2 BSP, female thread2 1/2 BSP, female thread
Process temperature	−20…+110 °C
Measurement technology	variable_area

Electrical characteristics

Output signal

1 x SPDT · 2 x SPDT

Materials

Wetted parts material

Brass, nickel-plated, Stainless steel 316L, Barium ferrite magnet, Stainless steel 304 with PTFE-coated spring, Barium ferrite magnet (BaFe-magnet), Stainless steel 304, PTFE-coated spring

Operating environment

Ambient temperature	−20…+80 °C
IP rating	IP65
Weight	2.5 kg

Certifications and approvals

Certifications

CERoHSLow Voltage Directive

Additional details

Datasheet languages

Tables from datasheet

Setting range
DN 10	0.3 ... 3	6
	0.5 ... 5	10
	1 ... 8	16
	2 ... 12	24
DN 15	0.3 ... 3	6
	0.5 ... 5	10
	1 ... 8	16
	2 ... 12	24
	5 ... 25	50
	7 ... 35	70
	12 ... 40	80
DN 20	0.3 ... 3	6
	0.5 ... 5	10
	1 ... 8	16
	2 ... 12	24
	5 ... 25	50
	7 ... 35	70
	10 ... 40	80
	25 ... 60	120
	40 ... 85	170
DN 25	0.3 ... 3	6
	0.5 ... 5	10
	2 ... 12	24
	5 ... 25	50
	7 ... 35	70
	12 ... 40	80
	20 ... 60	120
DN 32	25 ... 60	120
	30 ... 90	180
	40 ... 110	220
	50 ... 150	300
DN 40	40 ... 110	220
	50 ... 150	300
	60 ... 230	460
DN 50	50 ... 150	300
	75 ... 175	350
	90 ... 220	440
DN 65	100 ... 200	400
	180 ... 330	660
	180 ...	660
	330 ... 500	1,000
DN 80	330

Process connection
Standard	■ ANSI/ASME B1.20.1 ■ DIN ISO 228
Thread size
ANSI/ASME B1.20.1	■ ¼NPT, female thread ■ ⅜NPT, female thread ■ ½NPT, female thread ■ ¾NPT, female thread ■ 1 NPT, female thread ■ 1 ¼NPT, female thread ■ 1 ½NPT, female thread ■ 2 NPT, female thread ■ 2 ½NPT, female thread
DIN ISO 228	■ ¼BSP, female thread ■ ⅜BSP, female thread ■ ½BSP, female thread ■ ¾BSP, female thread ■ 1 BSP, female thread ■ 1 ¼BSP, female thread ■ 1 ½BSP, female thread ■ 2 BSP, female thread ■ 2 ½BSP, female thread ■ 3 BSP, female thread
Sealing	EPDM
Type of mounting	■ Horizontal in-line pipe mounting ■ Vertical in-line pipe mounting (flow direction bottom to top)

Output signal

Switching function	■ 1 x SPDT (single pole double throw) ■ 2 x SPDT (single pole double throw) for version without dial only
Setting range	→ See table 'Setting range'
Hysteresis	≤ 45 %of full scale value
Minimum load	→ See table 'NS'

Electrical connection

Connection type	■ DIN (DIN EN 175 301-803-A) ■ M12 connector (male, back mount, straight)
Pin assignment	The pin assignment is given on the product label on the instrument. Connection termi- nals and the ground terminal are appropriately marked.
Ingress protection per IEC 60529	IP65

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Operating conditions

Place of use	Indoor applications
Altitude	Up to 2,000m
Medium temperature range	-20 ... 110° C [-4 ... 230 °F] → Liquid media with the property of changing the volume during solidification can dam- age the measuring system (e.g. water if it falls below the freezing point).
Ambient temperature range	-20 ...+80 °C [-4 ...+176 °F]
Storage temperature range	-20 ...+80 °C [-4 ...+176 °F]
Permissible media	■ Water ■ Oil (viscosity of 30 ... 600 cSt)
Mounting position	■ Horizontal ■ Vertical
Permissible pollution degree	2
Overvoltage category	II
Weight	Approx. 2 ... 3 kg [4.4 ... 6.6 lb] (depending on model)

Electrical rating

AC current	DC current
Resistive load	Inductive load	Resistive load	Inductive load
125 V	250 V	125 V	250 V	30 V	125 V	250V	30 V	125 V	250V
5 A	3 A	3 A	2 A	4 A	0.4 A	0.2 A	3 A	0.4 A	0.2 A

Logo	Description	Region
	EU declaration of conformity	European Union
	LowVoltage Directive
	RoHS directive

NS	Process connection NPT/BSP	C	D	h	A	b	L	a
DN 8	¼ "	122 [4.80]	36 [1.417]	20.5 [0.807]	54 [2.126]	78 [3.071]	83.5 [3.287]	62.3 [2.453]
DN 10	⅜ "
DN 15	½ "
DN 20	¾ "
DN 25	1 "	159 [6.26]	40 [1.575]	22.5 [0.886]	58 [2.283]	84 [3.307]	-	-

NS	Process connection NPT/BSP	C	D	h	A	e	L	a
DN 8	¼ "	122 [4.80]	36 [1.417]	20.5 [0.807]	54 [2.126]	122 [4.80]	83.5 [3.287]	62.3 [2.453]
DN 10	⅜ "
DN 15	½ "
DN 20	¾ "
DN 25	1 "	159 [6.26]	40 [1.575]	22.5 [0.886]	58 [2.283]	124 [4.882]	-	-

NS	Process connection NPT/BSP	C	D	b2
DN 8	¼ "	122 [4.80]	36 [1.417]	59.5 [2.343]
DN 10	⅜ "
DN 15	½ "
DN 20	¾ "
DN 25	1 "	159 [6, 26]	40 [1.575]

NS	Process connection NPT/BSP	C	D	b2
DN 8	¼ "	122 [4.80]	36 [1.417]	59.5 [2.343]
DN 10	⅜ "
DN 15	½ "
DN 20	¾ "
DN 25	1 "	159 [6.26]	40 [1.575]

NS	Process connection	C	D	b2
	NPT	BSP
DN 32	1¼ "	1¼ "	128 [5.039]	70 [2.756]	76 [2.992]
DN 40	1 ½"	1 ½"
DN 50	2 "	2 "	220 [8.661]	75 [2.953]	76.5 [3.012]
DN 65	2 ½"	2 ½"		90 [3.543]	76 [2.992]
DN 80	-	3"		114 [4.488]	91 [3.583]

NS	Process connection	C	D	b2
	NPT	BSP
DN 32	1¼ "	1¼ "	128 [5.039]	70 [2.756]	76 [2.992]
DN 40	1 ½"	1 ½"
DN 50	2 "	2 "	220 [8.661]	75 [2.953]	76.5 [3.012]
DN 65	2 ½"	2 ½"		90 [3.543]	76 [2.992]
DN 80	-	3"		114 [4.488]	91 [3.583]

NS	G	L
	NPT	BSP
DN 8	¼ "	¼ "	18 [0.71]
DN 10	⅜ "	⅜ "
DN 15	½ "	½ "	16 [0.63]
DN 20	¾ "	¾ "
DN 25	1 "	1 "	20
DN 32	1¼ "	1¼ "	22
DN 40	1 ½"	1 ½"
DN 50	2 "	2 "	35 [1.38]
DN 65	2 ½"	2 ½"
DN 80	-	3"	40 [1.57]

Flow switch, mechanical

Description

Special features

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2 standard articles of family FSM