FLS-S

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WIKA · Level measurement · Family FLS

Float switch

Name: Float switch
Brand: WIKA

For the process industry, vertical installation

Range

0…6000 mm

Output

NO · NC

Protection

IP66/IP68

CERoHSEACDNV GLABSBureau VeritasLloyd’s RegisterDIBt

Price

On request

Depends on configuration

Request a quote

+38 (067) 285-77-70·info@avigan.com.uaViberTelegram

Description

A float with a permanent magnet moves reliably along with the liquid level on a guide tube. Within the guide tube is fitted a reed contact (inert gas contact), which is energised, through the non-magnetic walls of the float and guide tube, by the approach of the float magnet. By using a magnet and reed contact the switching operation is non-contact, free from wear and needs no power supply. The contacts are potentialfree. Float switches are also available with multiple switch points.

The switching functions always refer to a rising liquid level: Normally open, normally closed or change-over contact.

for further approvals see page 3

Fig. left: Stainless steel version, mounting thread, model FLS-S Fig. right: Plastic version, flange connection, model FLS-P

Through the use of a float for a max. of 2 switch points a bistable switch behaviour can be achieved, meaning that the switching status also remains available, when the filling level continues to rise above or drop below the switch point.

The float switch is simple to mount and maintenance-free, so the costs of mounting, commissioning and operation are low.

Special features

Large range of application due to the simple, proven functional principle
For harsh operating conditions, long service life
Operating limits: Operating temperature: T = -50 ... +350 °C Operating pressure: P = Vacuum up to 40 bar Limit density: ρ ≥ 300 kg/m 3
Operating temperature: T = -50 ... +350 °C
Operating pressure: P = Vacuum up to 40 bar
Limit density: ρ ≥ 300 kg/m 3
Wide variety of different electrical connections, process connections and materials
Explosion-protected versions

Identification

Model	FLS-S
Product family	FLS
Subcategory	float

Measuring range

Level ranges

0…6000 mm

Process conditions

Process connection	G 1 1/2"G 2"DIN DN 50 ... DN 200ANSI 2" ... 8"
Process temperature	−50…+350 °C
Max process pressure	40 bar
Measurement technology	float

Electrical characteristics

Output signal	NO · NC · SPDT
Power supply	safety extra-low voltage
Electrical connection	Connection housing Aluminium 64 x 58 x 34 mm, with 1 contact

Materials

Wetted parts material

1.4571 (316Ti), 1.4404 (316L), 1.4435 (316L), PP, PA, Ms, Buna, Titanium, Hastelloy

Operating environment

Ambient temperature	−50…+350 °C
IP rating	IP66/IP68

Certifications and approvals

Certifications	CERoHSEACDNV GLABSBureau VeritasLloyd’s RegisterDIBt
Explosion protection	Ex i II 1/2G Ex ia IIC T6 ... T1 Ga/Gb II 2D Ex ib IIIC T80°C ... T230°C DbEx d II 2G Ex d IIC T6 Gb II 2D Ex tb IIIC T80 °C Db

Additional details

Datasheet languages

EN, DE

Tables from datasheet

Model	Description	Materials
Stainless steel	Titanium 3.7035 (grade 2)	PVC / PP / PVDF
1.4571 (316Ti)	1.4404 (316L)	1.4435 (316L)	1.4571 (316Ti) / PP	1.4571 (316Ti) / PA	1.4571 (316Ti) / Ms	1.4571 (316Ti) / Buna
FLS-SE	Standard version, cable connection, safety extra-low voltage	x	x	x	x	x	x	x	x	-
FLS-SF	Standard version, cable connection, low voltage	x	x	x	x	x	x	x	x	-
FLS-SA	Standard version, connection housing or connector, low voltage	x	x	x	x	x	x	x	x	-
FLS-SB	Standard version, connection housing or connector, safety extra-low voltage	x	x	x	x	x	x	x	x	-
FLS-SBI (60)	Intrinsically safe, Ex i	x	x	-	-	-	-	-	x	-
FLS-SAD FLS-SBD (AL-ADF)	Flameproof enclosure, Ex d	x	x	-	-	-	-	-	-	-
FLS-ME	Miniature design, cable connection, safety extra-low voltage	x	x	-	x	-	-	x	-	-
FLS-MB	Miniature design, connection housing or connector, safety extra-low voltage	x	x	-	x	-	-	x	-	-
FLS-PF	Plastic version, cable connection, low voltage	-	-	-	-	-	-	-	-	x
FLS-PA	Plastic version, connection housing or connector, low voltage	-	-	-	-	-	-	-	-	x
FLS-HE	Pharmaceutical version, cable connection, safety extra-low voltage	-	x	x	-	-	-	-	-	-
FLS-HA	Pharmaceutical version, connection housing, low voltage	-	x	x	-	-	-	-	-	-
FLS-HA3	Sterile version (3-A), connection housing, low voltage	-	x	x	-	-	-	-	-	-
FLS-F	Food version, connection housing, low voltage	-	x	x	-	-	-	-	-	-

Models FLS-SE, FLS-SF, FLS-HE	-30 ...+180 °C
Models FLS-SA, FLS-SB	-50 ...+350 °C
Model FLS-SxI (60)	-50 ...+180 °C
Models FLS-SxD (AL-ADF)	-10 ...+120 °C
Model FLS-M	-10 ...+100 °C
Model FLS-P	-10 ...+100 °C
Models FLS-HA, FLS-HA3	-40 ...+200 °C
Model FLS-F	-30 ...+180 °C

Logo	Description	Country
	EU declaration of conformity ■ Low voltage directive ■ RoHS directive	European Union
	EAC ■ EMCdirective ■ Low voltage directive ■ Hazardous areas	Eurasian Economic Community
	DNV GL ■ Ships, shipbuilding (e.g. offshore) ■ Hazardous areas	International
	ABS ■ Ships, shipbuilding (e.g. offshore) ■ Hazardous areas	International
	Bureau Veritas Ships, shipbuilding	International
APPROVED TYPE	Lloyd's Register Ships, shipbuilding (e.g. offshore)	International
-	DIBt Safety (e.g. electr. safety, overpressure, ...) Overflow control per German Water Resources Act (WHG) § 19	Germany

Logo	Description	Country
	EU declaration of conformity ■ Low voltage directive ■ RoHS directive	European Union
	EAC EMCdirective Low voltage directive	Eurasian Economic Community

View all (20)

	Model FLS-SA, low voltage	Model FLS-SB, safety extra-low voltage
Electrical connection	■ Connection housing Aluminium 64 x 58 x 34 mm, with 1 contact Aluminium 80 x 75 x 57 mm, 2 or more contacts Option: Polypropylene, polyester, stainless steel ■ Coupler connector DIN EN 175301-803 (previously DIN 43650, 4-pin) M12 (4- or 8-pin)
Process connection	■ Mounting thread downwards G11/2" G2" Others on request ■ Mounting flange DIN DN 50 ...DN 200, PN 6 ...PN 100 DIN EN 1092-1 DN 50 ...DN 200, PN 6 ...PN 100 ANSI 2' ... 8', Class 150 ...600
Guide tube diameter	12mm/14mm/18mm
Guide tube length L	≤ 3,000 mmfor guide tube diameter 12 or14mm ≤ 6,000 mmfor guide tube diameter18mm
Float	Material: Stainless steel 1.4571 (option: Buna (NBR), titanium) Float diameter: 44 ...120mm Float selection depending on guide tube diameter and process conditions (see page 16, 17, 18)
Temperature range	Observe the temperature range of the float and the connection housing Temperature range of the connector on request
Standard version	-30 ...+180 °C
High-temperature version	-30 ...+250 °C
Low-temperature version	-50 ...+180 °C
Maximum temperature version	-30 ...+350 °C
Switching function	Alternatively normally open (NO), normally closed (NC) or change-over (SPDT) contact - on rising level
Max. number of contacts	6 x NOor NC, or 4 x SPDT
Switch position	Dimensions L1, L2, L3 ... (from sealing face, starting from top)
Distance between switch points	Minimum 20 mm(depending on the selection of the float and the contacts)
Switching power
Normally open, normally closed	AC ≤ 230 V; 100 VA; 1 A DC ≤ 230 V; 50 W;0.5 A	AC < 50 V; 100 VA; 1 A DC < 75 V; 50 W;0.5 A
Change-over	AC ≤ 230 V; 40 VA; 1 A DC ≤ 230 V; 20 W;0.5 A	AC < 50 V; 40 VA; 1 A DC < 75 V; 20 W;0.5 A
Mounting position	Vertical ±30°

	Model FLS-SF, low voltage	Model FLS-SE, safety extra-low voltage
Electrical connection	Connection cable ■ PVC ■ Silicone ■ PUR
Process connection	Mounting thread upwards:G⅜"or G½" Others on request
Guide tube diameter	12mm/14mm/18mm
Guide tube length L	≤ 3,000 mmfor guide tube diameter 12 or14mm ≤ 6,000 mmfor guide tube diameter18mm
Float	Material: Stainless steel 1.4571 (option: Buna (NBR), titanium) Float diameter: 44 ...120mm Float selection depending on guide tube diameter and process conditions (see page 16, 17, 18)
Temperature range
PVC/PUR cable	-10 ...+80 °C
Silicone cable	-30 ...+180 °C
	Observe the temperature range of the float
Switching function	Alternatively normally open (NO), normally closed (NC) or change-over (SPDT) contact - on rising level
Max. number of contacts	6 x NOor NC, or 4 x SPDT for PVC and PUR cable 5 x NOor NC, or 3 x SPDT for silicone cable
Switch position	Dimensions L1, L2, L3 ... (from sealing face, starting from top)
Distance between switch points	Minimum 20 mm(depending on the selection of the float and the contacts)
Switching power
Normally open, normally closed	AC ≤ 230 V; 100 VA; 1 A DC ≤ 230 V; 50 W;0.5 A	AC < 50 V; 100 VA; 1 A DC < 75 V; 50 W;0.5 A
Change-over	AC ≤ 230 V; 40 VA; 1 A DC ≤ 230 V; 20 W;0.5 A	AC < 50 V; 40 VA; 1 A DC < 75 V; 20 W;0.5 A
Mounting position	Vertical ±30°

	Model FLS-SBI
Electrical connection	Connection housing: Aluminium
	Option: Polyester, stainless steel
Process connection	■ Mounting thread downwards G11/2" or G2" ■ Mounting flange - DIN DN 50 ...DN 200, PN 6 ...PN 100 - DIN EN 1092 DN 50 ...DN 200, PN 6 ...PN 100 - ANSI 2" ... 8", Class 150 ...600 Others on request
Guide tube diameter	12mm/14mm/18mm
Guide tube length L	≤ 3,000 mmfor guide tube diameter 12 or14mm ≤ 6,000 mmfor guide tube diameter18mm
Float	Material: Stainless steel 1.4571 (option: Buna (NBR), titanium) Float diameter: 44 ...120mm Float selection depending on guide tube diameter and process conditions (see page 16, 17, 18)
Temperature class	T1	T2	T3	T4	T5	T6
Process temperature	Max. 180 °C	Max. 180 °C	Max. 180 °C	Max. 130 °C	Max. 95 °C	Max. 80 °C
Ambient temperature at connection housing (T a )	Max. 80 °C	Max. 80 °C	Max. 80 °C	Max. 80 °C	Max. 65 °C	Max. 50 °C
	→Versions with optional circuits (e g. resistor connection, NAMURor temperature contacts), as well as surface temperature (EPL Db) at dust protection see operating instructions
Switching function	Alternatively normally open (NO), normally closed (NC) or change-over (SPDT) contact - on rising level
Max. number of contacts	6 x NOor NC, or 4 x SPDT for guide tube diameter 12, 14 or18mm
Switch position	Dimensions L1, L2, L3 ... (from sealing face, starting from top)
Distance between switch points	Minimum 20 mm(depending on the selection of the float and the contacts)
Switching power	Only for connection to a certified intrinsically safe circuit with max.
	U i = 36V	I i = 100mA	C i = 0 nF	L i = 0 μH
Mounting position	Vertical ±30°

	Model FLS-SAD	Model FLS-SBD
Electrical connection	Connection housing: Aluminium Option: Stainless steel
Process connection	■ Mounting thread downwards G11/2" or G2" ■ Mounting flange DIN DN 50 ...DN 350, PN 6 ...PN 40 ANSI 2" ... 14", Class 150 ...300
Guide tube diameter	12mm/14mm
Guide tube length L	≤ 4,000 mmfor guide tube diameter12mm ≤ 6,000 mmfor guide tube diameter14mm
Float	Material: Stainless steel 1.4571 Float diameter: 44 ...80mm Float selection depending on guide tube diameter and process conditions (see page 16, 17, 18)
Temperature range (process temperature)	T4 T5 T6 ≤ 120 °C ≤ 95 °C ≤ 80 °C
Switching function	Change-over SPDT - on rising level
Max. number of contacts	4 x SPDT
Switch position	Dimensions L1, L2, L3 ... (from sealing face, starting from top)
Distance between switch points	Minimum 20 mm(depending on the selection of the float and the contacts)
Switching power	AC ≤ 230 V; 100 VA; 1.5 A DC ≤ 230 V; 60 W;1.5 A	■ With series resistance AC < 50V;40VA;150mA DC < 75V;20W;150mA ■ With NAMUR circuit per DIN EN 60947-5-6 AC < 50V;40VA;7mA DC < 75V;20W;7mA
Mounting position	Vertical ±30°

	Model FLS-ME	Model FLS-MB
Electrical connection	Connection cable ■ PVC ■ Silicone ■ PUR	■ Connection housing: Aluminium 64 x 58x34mm ■ Coupler connector DIN EN 175301-803 (previously DIN 43650, 4-pin) M12 (4- or 8-pin)
Process connection	Mounting thread upwards G1/8" Others on request	Mounting thread downwards G3/4" or G1" Others on request
Guide tube diameter	8mm
Guide tube length L	≤ 500mm
Float	Material: Stainless steel 1.4571 (option: Buna (NBR), titanium, PP) Float diameter from 20 ...35mm Float selection depending on guide tube diameter and process conditions (see page 16, 17, 18)
Temperature range	PVC/PUR cable	-10 ...+80 °C	Buna (NBR), PP	-10 ...+80 °C
Silicone cable	-30 ...+150 °C	Stainless steel, titanium	-30 ...+150 °C
Observe the permissible temperature range of the float.
Switching function	Alternatively normally open (NO), normally closed (NC) or change-over (SPDT) contact - on rising level
Max. number of contacts	3 x NOor NC, or 2 x SPDT
Switch position	Dimensions L1, L2, L3 ... (from sealing face, starting from top)
Distance between switch points	Minimum 20 mm(depending on the selection of the float and the contacts)
Switching power
Normally open, normally closed	AC < 50 V; 10 VA; 0.5 A	DC < 75 V; 5 W;0.25 A
Change-over	AC < 50 V; 5 VA; 0.25 A	DC < 75 V; 2.5 W;0.15 A
Versions FLS-MF, FLS-MA 1)	AC ≤ 230 V; 10 VA; 0.5 A	DC ≤ 230 V; 5 W;0.25 A
Mounting position	Vertical ±30°

	Model FLS-PF	Model FLS-PA
Electrical connection	Connection cable ■ PVC ■ PUR	■ Connection housing Polypropylene 80 x 82x55mm Polyester 80 x 75x55mm ■ Coupler connector DIN EN 175301-803 (previously DIN 43650, 4-pin) M12 (4- or 8-pin)
Process connection	Mounting thread upwards G3/8" others on request	Mounting thread downwards ■ G11/2" ■ G2" Flange ■ DIN DN50 ...DN200, PN 6 ...PN 100 ■ DIN EN 1092-1 DN50 ...DN200, PN6...PN 100 ■ ANSI 2" ... 8", Class 150 ...600
Guide tube diameter	12mm/16mm/20mm
Guide tube length L	≤ 500 mmfor guide tube diameter12mm ≤ 3,000 mmfor guide tube diameter16mm ≤ 5,000 mmfor guide tube diameter20mm
Float	Material: PVC, PP or PVDF Float diameter from 44 ...80mm Float selection depending on guide tube diameter and process conditions (see page 16, 17, 18)
Temperature range	For float material PVC 0 ... 60 °C For float material PP -10 ...+80 °C For float material PVDF -10 ...+100 °C
Switching function	Alternatively normally open (NO), normally closed (NC) or change-over (SPDT) contact - on rising level
Max. number of contacts	6 x NOor NC, or 4 x SPDT
Switch position	Dimensions L1, L2, L3 ... (from sealing face, starting from top)
Distance between switch points	Minimum 20 mm(depending on the selection of the float and the contacts)
Switching power
Normally open, normally closed	AC ≤ 230 V; 100 VA; 1 A	DC ≤ 230 V; 50 W;0.5 A
Change-over	AC ≤ 230V ; 40 VA; 1 A	DC ≤ 230 V; 20 W;0.5 A
Mounting position	Vertical ±30°

	Model FLS-HA	Model FLS-HE
Electrical connection	Connection housing: ■ Stainless steel	Connection cable ■ PVC ■ Silicone ■ PUR
Process connection	■ Mounting thread upwards G3/8" ■ Mounting flange per DIN or ANSI ■ Threaded connection per DIN 11851 ■ Clamp pipe connection per DIN 32676 ■ Ingold connection Others on request
Guide tube diameter	17.2 mm(stainless steel 1.4435 or 1.4539, surface ground and polished)
Guide tube length L	≤ 5,000mm
Float	Material: Stainless steel 1.4435 or 1.4539 Float diameter from 44 ...120mm Float selection depending on guide tube diameter and process conditions (see page 16, 17, 18)
Temperature range	PVC/PUR cable	-10 ...+80 °C
Silicone cable	-30 ...+150 °C
Switching function	Alternatively normally open (NO), normally closed (NC) or change-over (SPDT) contact - on rising level
Max. number of contacts	6 x NOor NC, or 4 x SPDT	6 x NOor NC, or 4 x SPDT for PVC and PUR cable 3 x NOor NC, or 2 x SPDT for silicone cable
Switch position	Dimensions L1, L2, L3 ... (from sealing face, starting from top)
Distance between switch points	Minimum 20 mm(depending on the selection of the float and the contacts)
Switching power
Normally open, normally closed	AC ≤ 230 V; 100 VA; 1 A DC ≤ 230 V; 50 W;0.5 A	AC < 50 V; 100 VA; 1 A DC < 50 V; 50 W;0.5 A
Change-over	AC ≤ 230V ; 40 VA; 1 A DC ≤ 230 V; 20 W;0.5 A	AC < 50 V; 40 VA; 1 A DC < 50 V; 20 W;0.5 A
Mounting position	Vertical ±30°

	Model FLS-HA3 with separate float bracket	Model FLS-HA3 with welded pipe connection
Electrical connection	Connection housing: stainless steel
Process connection	■ Clamp pipe connection ISO 2852, DN 32 …DN100or 1.5" …4" ■ Clamp pipe connection DIN 32676, DN 32 …DN100or 1.5" …4" ■ Aseptic mounting thread downwards DIN 11864-1, DN 32 ...DN 100 or 1.5" ... 4" ■ Aseptic liner DIN 11864-1, DN 32 ...DN 100 or 1.5" ... 4" ■ Aseptic flange connection DIN 11864-2 (DN 32 ...DN 50 or 1.5" ... 2" ■ Aseptic clamp connection DIN 11864-3, DN 32 ...DN 100 or 1.5" ... 4" ■ VARIVENT ® (form F,N and G) ■ BioConnect ® threaded connection, DN 32 …DN100or 1,5" …2" ■ BioConnect ® flange connection, DN 32 …DN100or 1.5" …2" ■ BioConnect ® clamp connection, DN 32 …DN100or 1.5" …4"
Guide tube diameter	12 mm/ 14 mm/ 17.2 mm(stainless steel 1.4435 or 1.4539, surface ground or polished, R a < 0.8 µm)
Guide tube length L	≤ 5,000mm
Float	Material: Stainless steel 1.4435 or 1.4539 Float diameter:50 ...80mm Float selection depending on guide tube diameter and process conditions (see page 16, 17, 18)
Temperature range
Process temperature	-40 ...+200 °C
Ambient temperature	-40 ...+85 °C
Switching function	Alternatively normally open (NO), normally closed (NC) or change-over (SPDT) contact - on rising level
Max. number of contacts	3 x NOor NC, or 3 x SPDT
Switch position	Dimensions L1, L2, L3 ... (from sealing face, starting from top)
Distance between switch points	Minimum 50 mm(depending on the selection of the float and the contacts)
Switching power
Normally open, normally closed	AC ≤ 230 V; 100 VA; 1 A DC ≤ 230 V; 50 W;0.5 A
Change-over	AC ≤ 230V ; 40 VA; 1 A DC ≤ 230 V; 20 W;0.5 A
Mounting position	Vertical ±30°

Model	Angled version	Adjustable guide tube	ECTFE coating	Special flange from polyamide or brass	Food version
FLS-SE	x	x	-	-	x
FLS-SF	x	x	-	-	x
FLS-SA	x	x	x	x	x
FLS-SB	x	x	x	x	x
FLS-SBI (60)	x	-	-	-	-
FLS-ME	x	x	-	-	-
FLS-MB	x	x	-	-	-
FLS-PF	x	-	-	-	-
FLS-PA	x	-	-	-	-

	Threaded pipe connection	Clamp pipe connection
Electrical connection	Connection housing: ■ Aluminium 64 x 58 x 34 mm, with 1 contact ■ Aluminium 80 x 75 x 57 mm, 2 or more contacts Option: Polypropylene, polyester, stainless steel
Process connection	Threaded pipe connection per DIN 11851, downwards DN 50 ...DN 150 others on request	Clamp pipe connection per DIN 32676, DN 25 …DN100or 1" …4" others on request
Guide tube diameter	12mm/14mm/18mm
Guide tube length L	≤ 3,000 mmfor guide tube diameter 12 or14mm ≤ 6,000 mmfor guide tube diameter18mm
Float	Material stainless steel 1.4435 or 1.4404, option electropolished Float diameter from 44 ...80mm Float selection depending on guide tube diameter and process conditions (see page 16, 17, 18)
Temperature range (process temperature)	-30 ...+180 °C
Switching function	Alternatively normally open (NO), normally closed (NC) or change-over (SPDT) contact - on rising level
Max. number of contacts	3 x NOor NC, or 3 x SPDT
Switch position	Dimensions L1, L2, L3 ... (from sealing face, starting from	top)
Distance between switch points	Minimum 50 mm(depending on the selection of the float and the contacts)
Switching power
Normally open, normally closed	AC ≤ 230 V; 100 VA; 1 A DC ≤ 230 V; 50 W;0.5 A
Change-over	AC ≤ 230V ; 40 VA; 1 A DC ≤ 230 V; 20 W;0.5 A
Mounting position	Vertical ±30°

Material	Version	Suits guide tube Ø inmm	Ø A inmm	B inmm	Ø C inmm	Max. operating pressure in bar	Max. operating temp. in °C	Limit density 85% in kg/m 3	Order no.
Stainless steel 1.4571	V29A	8	29	28	9	25	100	920	027355
V52A	12	52	52	15	40	250	700	005462
V52T	12	52	52	15	40	350	730	033560
V62A	12	62	61	15	32	250	590	005473
V83A	12	83	81	15	25	250	430	005485
V80A	18	80	76	23	25	250	680	005478
V98A	18	98	96	23	25	250	600	005489
V105A	18	105	103	23	25	250	530	020652
V120A	18	120	117	23	25	250	390	021721
Titanium 3.7035	T29A	8	29	28	9	30	100	700	005522
T52A	12	52	52	15	25	300	570	005525
T62A	12	62	62	15	25	300	505	005536
T83A	12	83	81	15	25	300	350	005544
T80A	18	80	76	23	25	300	665	112263
T98A	18	98	96	23	25	300	495	-
T105A	18	105	103	23	25	300	370	-
T120A	18	120	117	23	25	300	330	-
Stainless steel 1.4571 ECTFE coated	VEC53A	12	53	53	14	25	Depending on medium	850	111415
	VEC63A	12	63	62	14	25	Depending on medium	590	-
	VEC84A	12	84	82	14	25	Depending on medium	400	-
	VEC81A	18	81	77	22	25	Depending on medium	720	-
	VEC99A	18	99	97	22	25	Depending on medium	675	-
	VEC106A	18	106	104	22	25	Depending on medium	630	-
	VEC121A	18	121	118	22	25	Depending on medium	460	-

Material	Version	Suits guide tube Ø inmm	Ø A inmm	B inmm	Ø C inmm	Max. operating pressure in bar	Max. operating temp. in °C	Limit density 85% in kg/m 3	Order no.
Stainless steel 1.4571	V27A	8	27	31	10	16	100	787	009679
V29A/40	12	29	40	13,4	10	180	720	030352
V44A	12	44	52	15	16	300	720	009681
V44T	12	44	52	15	16	350	780	033561
Titanium 3.7035	T44A	12	44	52	15	16	300	720	009744
Buna (NBR)	B20A	8	20	20	9	3	80	940	009719
B23A	8	23	25	9	3	80	800	009721
B25A	8	25	14	9	3	80	790	009720
B30A	8	30	45	13	3	80	680	034047
B40A	12	40	30	15	3	80	580	009728
B40A/120	12	40	120	15	3	80	410	14377687
B50A	18	50	45	19	3	80	500	009725
PVC	P44A	12	44	44	14	3	60	650	033790
P55A	16	55	54	22	3	60	800	033793
P80A	20	80	79	25	3	60	570	033796
Polypropylene	PP27A	8	27	29	9	3	80	755	015516
PP35A	8	35	33	9	3	80	675	100347
PP44A	12	44	44	14	3	80	480	015514
PP55A	16	55	54	22	3	80	580	033792
PP80A	20	80	79	25	3	80	430	033795
PVDF	PF44A	12	44	55	14	3	100	780	033791
PF55A	16	55	69	22	3	100	820	116235
PF80A	20	80	79	25	3	100	680	033797
Stainless steel 1.4571 E-CTFE coated	VEC45A	12	45	53	14	16	Depending on medium	891	114412

Material	Model	Suits guide tube Ø inmm	Ø A inmm	B inmm	Ø C inmm	Max. operating pressure in bar	Max. operating temp. in °C	Limit density 85% in kg/m 3	Order no.
Stainless steel 1.4435	V80/88/A34/3A/35, axial	18	80	55	23	16	250	790	129383
V50/55/17/ A34/3A/35	12	50	55	16.8	16	250	955	129583
V55/70/A34/ 3A/35 axial	12	55	70	17	16	250	780	14462858

Contact protection relays	Contacts	Input	Power supply	Ex marking	Order no.
KFD2-ER-1.6	1 x change-over AC 250 V, 2 A	2 x contacts	DC 20 ...30V	-	123806
KFD2-SR2-Ex2.W	2 x change-over AC 253 V, 2 A	2 x contacts	DC 20 ...30V	II 1GD Ex ia IIC	124344
KFA6-ER-1.6	1 x change-over AC 250 V, 2 A	2 x contacts	AC 230V	-	124341
KFA6-SR2-Ex2.W	2 x change-over AC 253 V, 2 A	2 x contacts	AC 230V	II 1GD Ex ia IIC	123794

RC element	Capacitance	Resistance	Voltage	Order no.
B3/110	0.33 µF	470Ω	AC 110V	126529
B3/230	0.33 µF	820Ω	AC 230V	126530

Logo	Description	Country
	EU declaration of conformity ■ Directive for nuclear facilities IEC/IEEE 60780-323 ■ RoHS directive ■ ATEX directive (option) Hazardous areas - Ex i Zone 0, gas II 1/2G Ex ia IIC T6 ...T1 Ga/Gb Zone 1, gas II 2G Ex d IIC T6 Gb	European Union
	Zone 0, dust II 2D Ex ib IIIC T80 ...T230 Zone 1, dust II 2D Ex tb IIIC T80 °C Db (option) Ships, shipbuilding (e.g. offshore)	International
	DNV ■ ■ Hazardous areas
	ABS (option) Ships, shipbuilding (e.g. offshore)	International