FTL51C Spare Parts List Overview

This article provides a spare parts list for the Endress+Hauser FTL51C vibrating fork level switch, covering key components such as covers, seals, cable entries, and electronic inserts. The spare parts are grouped by category, including order numbers, specifications, and applicable models, making it easy for engineering and procurement personnel to quickly find and select parts.

Cover Spare Parts

Cover spare parts include aluminum covers, stainless steel covers, plastic covers, and window covers, suitable for different housing materials and protection requirements. When selecting, pay attention to the housing model and seal material.

Aluminum Covers

Order NumberSpecificationApplicable Housing
52002698Aluminum cover, O-ring EPDMAluminum housing F13, Ex d
52002699Aluminum cover, O-ring EPDMAluminum housing F17
52006903Aluminum cover, O-ring EPDMAluminum housing, Liquiphant M/S, Liquicap M, Soliphant M
52007103Aluminum cover, O-ring EPDMTerminal compartment, aluminum housing T13

Stainless Steel Covers

Order NumberSpecificationApplicable Housing
52005266Stainless steel cover, 316LLiquiphant M
52027000Stainless steel cover, gasket 67.5x2.9x1.5 VMQ/PTFEStainless steel housing F15
71114754Cover, 316L, O-ring 70.0x3.0 EPDMStainless steel housing F27, FTL50/FTL51/FTL51C, FTL70/FTL71, FTL80/FTL81/FTL85

Plastic Covers and Window Covers

Order NumberSpecificationApplicable Housing
52025606Plastic cover, gasket EPDMPolyester housing
52025790Transparent cover, gasket EPDMPolyester housing
52027002Window cover with seal, window: glass, gasket 67.5x2.9x1.5 VMQ/PTFEStainless steel housing F15
52028207Window cover with seal, window: polycarbonate PC, gasket 67.5x2.9x1.5 VMQ/PTFEStainless steel housing F15, non-hazardous area (EEx ia)

Seals and Adapters

Seals and adapters ensure the protection rating and connection reliability of the housing. The commonly used seal kits and adapters are listed below.

Seal Kits

Order NumberSpecificationApplicable Housing/Model
52004137Cover seal kit, polyester housing F16Polyester housing F16
52004277Seal kit, 10x O-ring 70.0x3.0 EPDMGeneral
52008495Seal kit, for coverGeneral
52028179Gasket, profile gasket for coverStainless steel housing F15
71114756Seal kit, 3x O-ring 70.0x3.0 FVQMFTL50/FTL51/FTL51C, FTL70/FTL71, FTL80/FTL81/FTL85

Adapters

Order NumberSpecificationApplicable Model
52004236Mounting kit, including retaining ring 301, adapter ring PPALiquiphant M/S
52004133AdapterPolyester housing F16
52004134AdapterPolyester housing F16
52004135AdapterPolyester housing F16

Cable Entries and Cable Glands

Cable entries and cable glands are used for fixing and sealing cables, ensuring the protection rating of electrical connections.

Order NumberSpecificationApplicable Model
52002447Cable entry, including adapter M20>G1/2 304, gasket NBR, blind plug G1/2Cerabar M, Liquiphant M
52002448Cable entry, including adapter M20>NPT1/2 304, gasket NBR, plug NPT1/2Cerabar M, Liquiphant M
52004278Cable gland, including cable gland M20, O-ring FKM, plug Pg11 PAGeneral

Electronic Inserts

Electronic inserts are the core components of the FTL51C. Depending on the output signal and power supply, various models are available. When selecting, confirm compatibility with the transmitter.

Electronic Insert Models

Order NumberSpecificationApplicable Model
52002304Level switch, 2-wireLiquiphant M/S (HT)
52002305Level switch, 3-wireLiquiphant M/S (HT)
5200230619-253VAC/19-55VDCLiquiphant M/S (HT)
52002307Level switch, 2-wire 4-20mALiquiphant M/S (HT)
52002308Level switch, 2-wireLiquiphant M/S (HT)
52002309Level switch, 2-wireLiquiphant M/S (HT)
52006454Level switch, 2-wire + buttonLiquiphant M/S (HT)
71027201Electronic insert, combined with FML621Liquiphant M
71074953PROFIBUS PA, hardware version 02.00, software version 01.03.00, current consumption 12.5mA±1.0mAFTL50/FTL50H/FTL51/FTL51C/FTL51H, FTL70/FTL71

Other Accessories

Other accessories include lubricant, sun shield, and modified nameplate, used for maintenance and identification.

Order NumberSpecificationApplicable Model
52005977Lubricant "SYNTHESO GLEP1" (8g per tube)General
71127760Sun shieldFDR56, FMI21, FMI51/FMI52, FQR56, FTI51/FTI52/FTI55/FTI56, FTI77, FTL50/FTL50H/FTL51/FTL51C/FTL51H, FTL70/FTL71, FTL80/FTL81/FTL85, FTM20/FTM21, FTM50/FTM51/FTM52, FTR20, FTW31/FTW32/FTW33
71040497Sun shieldFMI51/FMI52, FTI51/FTI52/FTI55/FTI56, FTI77, FTL50/FTL50H/FTL51/FTL51C/FTL51H, FTL70/FTL71, FTL80/FTL81/FTL85, FTM20/FTM21, FTM50/FTM51/FTM52
71067434Modified nameplate, blank, for filling in new order number after modification of non-explosion-proof instrumentsFMB50/FMB51/FMB52, FMR230/FMR231, FMR240/FMR244/FMR245, FMR250, FMR530/FMR532, FTL50/FTL50H/FTL51/FTL51C/FTL51H, FTL70/FTL71, FTL80/FTL81/FTL85, NMR81, PMC51, PMC71, PMP51/PMP55

Selection Notes

  • Confirm housing model: Different housings (such as F13, F17, F15, F16, F27, T13) correspond to different covers and seals. Check the instrument nameplate when selecting.
  • Pay attention to explosion-proof requirements: For Ex d applications, select spare parts with the corresponding explosion-proof rating, e.g., 52002698 is suitable for Ex d aluminum housing F13.
  • Electronic insert compatibility: Electronic inserts must match the transmitter model and output signal, e.g., PROFIBUS PA insert 71074953 is suitable for FTL51C and other models.
  • Seal material: Select EPDM, FKM, or VMQ/PTFE seals based on the medium and temperature to ensure compatibility.