Vibronic
Point level detection
Liquiphant FTL51

Point level switch with extension tube for liquids in all industries

FTL51

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Specs at a glance

Process temperature

-50 °C...+150 °C
(-58 °F...+302 °F)
Process pressure / max. overpressure limit

Vacuum...100 bar
Min. density of medium

0.5g/cm³(0.4g/cm³ optional)

See all specifications

Field of application

Liquiphant FTL51 is a point level switch with extension tube for use in hazardous areas with all international certificates. Useable in all industries. FTL51 offers functional safety SIL2/SIL3. With the second line of defense highest degree of safety and availability of the device can be guaranteed. Reliable measurement values, not affected by: changing media properties, flow, turbulences, gas bubbles, foam, vibrations or build-up.

Point level switch with extension tube for all liquids.

Process connections: Threads, flanges and hygienic process connection (Tri-Clamp)
Temperature: -50 to +150°C (-58 to +302°F)
Pressure: -1 to +100bar (-14.5 to +1,450psi)
Sensor material: 316L, Alloy
International explosion protection certificates, overfill protection WHG, SIL

Benefits

Use in safety systems requiring functional safety to SIL2/SIL3 in accordance with
IEC 61508/IEC 61511-1
International explosion protection certificates and overfill protection certificate (WHG)
No calibration required, easy to start up
No mechanically moving parts: no maintenance, no wear, long operating life.
Monitoring of fork for damage: guaranteed function
Second line of defense to protect the environment
Variety of standardized process connections for all applications
Stainless steel (316L) and high-corrosion resistant sensor material (Alloy)

Videos

Vibronic measuring principle
Liquiphant with permanent function check is the safe choice for point level detection in liquids

Extended selection

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Simple products
Easy to select, install and operate

Technical excellence

Simplicity

What is FLEX?

Standard products
Reliable, robust and low-maintenance

Technical excellence

Simplicity

What is FLEX?

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Specialized products
Designed for demanding applications

Technical excellence

Simplicity

Variable

What is FLEX?

FLEX selections	Technical excellence	Simplicity
F L E X Fundamental selection Meet your basic measurement needs	Technical excellence	Simplicity
F L E X Lean selection Handle your core processes easily	Technical excellence	Simplicity
F L E X Extended selection Optimize your processes with innovative technologies	Technical excellence	Simplicity
F L E X Xpert selection Master your most challenging applications	Technical excellence	Simplicity Variable

Learn more about the FLEX selections

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Predecessor

CS1103
CS1113
CS1203
CS1213
CS1603
CS1613
FTL51K
FTL360

FTL361
FDL30
FDL31
FTL365
FTL366
FDL35
FDL36

Success stories

Optimized logistics concept for tank systems

We implemented a highly effective logistics concept at chemicals distributors Brenntag Schweizerhall AG's Basel site.
Read the full story
Time saved, safety increased

Employees of Returkraft regularly have to fulfill and document all requirements of the SIL measuring points in the plant.
Read the full story
Fit for purpose instrumentation for CNG compressors

The Egyptian government is working to replace liquid fuels with natural gas. To achieve this they targeted increasing the number of CNG stations in their country from 306 to 1000 by the end of 2021.
Read the full story
Extend SIL proof test intervals with new Liquiphant FTL51

Discover how our customer CABB was able to extend SIL proof test intervals with the new Liquiphant FTL51
Read the full story
Basics of continuous level measurement

Common technologies available for continuous level measurement are ultrasonic, free space radar, guided wave radar, capacitance, gamma and pressure.
Read the full story

Filter

Search spare parts by number in drawing

60 spare parts & accessories

Cover F13 Ex Alu, gasket

Cover

Drawing number

Order code

20

52002698
Cover F17 Alu, gasket

Cover

Drawing number

Order code

20

52002699
Cover T13 Alu, gasket EPDM

Cover

Drawing number

Order code

20

52006903
Cover F16 grey, PBTP, gasket

Cover

Drawing number

Order code

20

52025606
Cover F16 transparent, gasket

Cover

Drawing number

Order code

20

52025790
Cover F15 316L, gasket

Cover

Drawing number

Order code

20

52027000
Cover F15 316L, sight glass, gasket

Cover

Drawing number

Order code

20

52027002
Cover F15, sight glass PC, 316L, gasket

Cover

Drawing number

Order code

20

52028207
Cover F27 316L, gasket EPDM

Cover

Drawing number

Order code

20

71114754
Adapter set housing/electronics FTL5x/7x

Electronic

Drawing number

Order code

12

52004236
O-ring 71.0x3.55 EPDM, 5 pieces

Sealing

Drawing number

Order code

21

52004137
Sealing set EPDM,cover F13/17/18/27,5pc

Sealing

Drawing number

Order code

21

52004277
Sealing set EPDM 73.0x3.0, 10 pieces

Sealing

Drawing number

Order code

21

52008495
Gasket 67.5x2.9x1.5 VMQ/PTFE, 5 pieces

Sealing

Drawing number

Order code

21

52028179
Sealing set FVQM, cover F27, 5 pc.

Sealing

Drawing number

Order code

21

71114756
Cable entry G1/2, gasket

Adapter housing/cable entry

Drawing number

Order code

15

52002447
Cable entry NPT1/2, gasket

Adapter housing/cable entry

Drawing number

Order code

15

52002448
Cable entry Pg13.5, gasket

Adapter housing/cable entry

Drawing number

Order code

15

52002450
Adapter set cable entry NPT1/2

Adapter housing/cable entry

Drawing number

Order code

15

52004133
Adapter set cable gland M20

Adapter housing/cable entry

Drawing number

Order code

15

52004134
Adapter set cable entry G1/2

Adapter housing/cable entry

Drawing number

Order code

15

52004135
Adapter set cable gland Pg13.5

Adapter housing/cable entry

Drawing number

Order code

15

52004136
Cable gland M20, gasket

Adapter housing/cable entry

Drawing number

Order code

15

52004278
Cable gland M20 Metal F15, gasket

Adapter housing/cable entry

Drawing number

Order code

15

71185029
Plug conn. ISO4400 3-pole, NPTF1/2, PE

further parts

Order code

516734-1000
Plug conn. ISO4400 DIN43650 3+PE Pg11

further parts

Order code

516734-2000
Cable 4x0.75, case 5080 FlSt

further parts

Order code

938313-1000
Cover T13 "Terminal" Alu, gasket EPDM

Cover

Drawing number

Order code

25

52007103
Electronics FEL51 19-253VAC

Electronic

Drawing number

Order code

30

52002304
Electronics FEL52 10-55VDC-PNP

Electronic

Drawing number

Order code

30

52002305
Electronics FEL54 relays DPDT

Electronic

Drawing number

Order code

30

52002306
Electronics FEL55 11-36VDC

Electronic

Drawing number

Order code

30

52002307
Electronics FEL56 NAMUR

Electronic

Drawing number

Order code

30

52002308
Electronics FEL57 PFM

Electronic

Drawing number

Order code

30

52002309
Electronics FEL58 NAMUR

Electronic

Drawing number

Order code

30

52006454
Electronics FEL50D Density/Concentration

Electronic

Drawing number

Order code

30

71027201
Electronics FEL50A,PA,HW02.00,SW01.03.00

Electronic

Drawing number

Order code

30

71074953
Lubricant "SYNTHESO GLEP1" (tube a 8g)

further parts

Order code

52005977
Modification name plate, non Ex

further parts

Order code

71067434
Sealing ring G3/4, 27x32, FA, 5 pcs.

Sealing

Drawing number

Order code

57

71185027
Sealing ring G1, 33x39 FA, 5 pcs.

Sealing

Drawing number

Order code

57

52014048
Sealing ring G1-1/2, 48x55 FA, 5 pcs.

Sealing

Drawing number

Order code

57

52014047
O-ring 21.89x2.62 VMQ, FDA, 5 pcs.

further parts

Order code

52014473
O-ring 21.89x2.62 VMQ, FDA, USP, 3pcs.

further parts

Order code

71086100
O-ring 21.89x2.62 EPDM, FDA, USP, 3 pcs.

further parts

Order code

71140670
O-ring 28.17x3.53 VMQ, FDA, 5 pcs.

further parts

Order code

52014472
O-ring 28.17x3.53 VMQ, FDA, USP, 3 pcs.

further parts

Order code

71086102
O-ring 28.17x3.53 EPDM, FDA, USP, 3 pcs.

further parts

Order code

71140668
Profile gasket 29x36x3.7, FDA, 5 pcs.

further parts

Order code

52014424
Profile gasket 29x36x3.7, FDA, USP, 5pcs

further parts

Order code

71075662
Protection cover F16 housing

Order code

71127760
Weather protection cover F13/F17/F18/F27

Order code

71040497
Sliding sleeve 100bar G1, 316L

Order code

52003663
Sliding sleeve 100bar G1, 316L, 3.1

Order code

52011880
Sliding sleeve 100bar G1, AlloyC4

Order code

52003664
Sliding sleeve 100bar G1-1/2, 316L

Order code

52003665
Sliding sleeve 100bar G1-1/2, 316L, 3.1

Order code

52011882
Sliding sleeve 100bar G1-1/2, AlloyC4

Order code

52003666
Sliding sleeve 100bar NPT1, 316L

Order code

52003667
Sliding sleeve 100bar NPT1, 316L, 3.1

Order code

52011881
Sliding sleeve 100bar NPT1, AlloyC4

Order code

52003668
Sliding sleeve 100bar NPT1-1/2, 316L

Order code

52003669
Sliding sleeve 100bar NPT1-1/2, 316L,3.1

Order code

52011883
Sliding sleeve 100bar NPT1-1/2, AlloyC4

Order code

52003670
Sliding sleeve G1, 316L

Order code

52003978
Sliding sleeve G1, 316L, 3.1

Order code

52011888
Sliding sleeve 100bar G1, AlloyC22, 3.1

Order code

71118691
Sliding sleeve G1-1/2, 316L

Order code

52003980
Sliding sleeve G1-1/2, 316L, 3.1

Order code

52011890
Sliding sleeve 100barG1-1/2,AlloyC22,3.1

Order code

71118693
Sliding sleeve NPT1, 316L

Order code

52003979
Sliding sleeve NPT1, 316L, 3.1

Order code

52011889
Sliding sleeve 100bar NPT1, AlloyC22,3.1

Order code

71118694
Sliding sleeve NPT1-1/2, 316L

Order code

52003981
Sliding sleeve NPT1-1/2, 316L, 3.1

Order code

52011891
Sliding slee.100barNPT1-1/2,AlloyC22,3.1

Order code

71118695
Weld-in adapter RD52, 316L

Order code

52001047
Weld-in adapter G1, d=53, 316L, 3.1

Order code

71093129
Weld-in adapter G1, d=60, 316L

Order code

52001051
Weld-in adapter G1, d=60, 316L, 3.1

Order code

52011896
Weld-in adapter G1, d=53, 316L

Order code

71258358
Weld-in adapter G1, adjustable, 316L

Order code

52001221
Weld-in adapter G1, adjustable,316L, 3.1

Order code

52011898
Test magnet

Order code

71267011
Fork protection screwed

Order code

71639787
Fork protection screwed and slitted

Order code

71639788

	EN
10/01/2020
09/10/2017
30/11/2016
07/05/2015
04/04/2012

Language:	English
Version:	10/01/2020
File size:	2.7 MB
File name:	TI00328FEN_1820.pdf

Language:	English
Version:	10/08/2004
File size:	836 KB
File name:	BA141FEN.pdf

	EN
25/03/2024
15/09/2023
28/10/2021
30/07/2021
19/06/2020

Language:	English
Version:	25/03/2024
File size:	1.1 MB
File name:	TI00426FEN_2524.pdf

	EN
10/08/2004

	EN
31/08/2018
13/02/2017
19/05/2010
29/11/2007

	EN
08/10/2012
12/02/2009
29/11/2007

	EN
10/08/2004

VibronicPoint level detectionLiquiphant FTL51

Point level switch with extension tube for liquids in all industries

Specs at a glance

Process temperature

Process pressure / max. overpressure limit

Min. density of medium

Field of application

Benefits

Videos

Extended selection

Predecessor

Success stories

Optimized logistics concept for tank systems

Time saved, safety increased

Fit for purpose instrumentation for CNG compressors

Extend SIL proof test intervals with new Liquiphant FTL51

Basics of continuous level measurement

Measuring principle

Characteristic / Application

Specialities

Supply / Communication

Ambient temperature

Process temperature

Process pressure / max. overpressure limit

Min. density of medium

Main wetted parts

Process connection

Process connection hygienic

Sensor length

Communication

Certificates / Approvals

Safety approvals

Design approvals

Marine approval

Options

Components

Successor

Measuring principle

Characteristic / Application

Supply / Communication

Ambient temperature

Process temperature

Process pressure

Wetted parts

Sensor length

Output

Certificates / Approvals

Specialities

Components

Other approvals and certificates

Back

Liquiphant M FTL50, FTL51, FTL50H, FTL51H Technical Information

Liquiphant M/S FTL50, FTL51, FTL50H, FTL51H, FTL51C, FTL70, FTL71 Electronic insert FEL50A PA

TI Weld-in adapter, process adapter and flanges

Liquiphant M FTL50, FTL51, FTL50H, FTL51H Technical Information

Liquiphant M FTL51C Technical Information

Technical Information Liquiphant M Density and Density Computer FML621

Liquiphant M/S FTL50, FTL51, FTL50H, FTL51H, FTL51C, FTL70, FTL71 Electronic insert FEL50A PA

FTL5x - sealing set

Bedienungsanleitung/ Operating Instuction Liquiphant.

Liquiphant M FTL50, FTL51 Operating Instructions

Liquiphant M FTL50-########7#, FTL51-########7#, Operating Instructions

Liquiphant M Density FTL50, FTL51 Operating Instructions

Back

Cover F13 Ex Alu, gasket

Cover F17 Alu, gasket

Cover T13 Alu, gasket EPDM

Cover F16 grey, PBTP, gasket

Cover F16 transparent, gasket

Cover F15 316L, gasket

Cover F15 316L, sight glass, gasket

Cover F15, sight glass PC, 316L, gasket

Cover F27 316L, gasket EPDM

Adapter set housing/electronics FTL5x/7x

O-ring 71.0x3.55 EPDM, 5 pieces

Sealing set EPDM,cover F13/17/18/27,5pc

Sealing set EPDM 73.0x3.0, 10 pieces

Gasket 67.5x2.9x1.5 VMQ/PTFE, 5 pieces

Sealing set FVQM, cover F27, 5 pc.

Cable entry G1/2, gasket

Vibronic
Point level detection
Liquiphant FTL51