FTM21 Spare Parts List Overview
This article provides a complete spare parts list for the Soliphant T FTM21 tuning fork level switch, including housing covers, seals, electronic inserts, sliding sleeves, and weather protection covers. Each spare part lists the order number, specification description, and applicable models, making it easy for engineering technicians and procurement personnel to quickly select and replace parts.
All spare parts are suitable for the Endress+Hauser FTM20/FTM21 series. Some spare parts are compatible with other instrument models; please verify according to your specific requirements.
Housing and Cover Spare Parts
Aluminum Cover and Transparent Cover
Housing covers are used to protect internal electronic components and are available in aluminum and transparent materials to suit different housing types.
| Order Number | Specification | Applicable Housing | Remarks |
|---|---|---|---|
| 52005910 | Aluminum cover, O-ring EPDM | Aluminium housing F18 | - |
| 52025790 | Transparent cover, Gasket EPDM | Polyester housing | - |
| 52027693 | Aluminum cover, O-ring 70.0x3.0 EPDM | Aluminium housing F13/F17/F18 | Not suitable for EEx d |
Seals and O-rings
Housing Seal Kit
Seals are used to ensure the housing protection rating and prevent dust and moisture from entering. The following are commonly used seal kits and O-rings.
| Order Number | Specification | Applicable Model | Remarks |
|---|---|---|---|
| 52004137 | O-ring, Cover seal set Polyester housing F16 | Polyester housing F16 | - |
| 52004277 | Seal kit, includes 10x O-ring 70.0x3.0 EPDM | - | - |
| 52014472 | O-ring, for welding adapter G1 (52001051) | Liquiphant M "GW2", Liquiphant T "7", Liquicap M "GWJ", Cerabar T PMP135 "N", Ceraphant T PTP35 "BB" | For welding adapter G1, 316L 3.1 (52011896) |
| 71086102 | O-ring, Material: silicone VMQ, USP Class VI | Welding adapter G1, 316L (52001051) flush mount, FMI51/FMI52, FTI51/FTI52, FTL31/FTL33, FTW23/FTW33, PMP23, PMP51, PTP33B, FTL50/FTL50H/FTL51/FTL51H, FTL80/FTL81, QMW43, welding adapter G1, 316L, 3.1 (52011896) flush mount, sliding sleeve FTM21 | - |
| 71140668 | O-ring, Material: EPDM 70, USP Class VI, 3-A | Welding adapter G1, 316L (52001051) flush mount, FMI51/FMI52, FTI51/FTI52, FTL31/FTL33, FTW23/FTW33, PMP23, PMP51, PTP33B, FTL50/FTL50H/FTL51/FTL51H, FTL80/FTL81, QMW43, welding adapter G1, 316L, 3.1 (52011896) flush mount, sliding sleeve FTM21 | - |
Electronic Inserts
The electronic insert is the core component of the level switch, responsible for signal processing and output. The following are electronic inserts suitable for FTM20/FTM21.
| Order Number | Specification | Applicable Model |
|---|---|---|
| 52025688 | Electronic insert, 3-wire | Soliphant T FTM20/FTM21 |
| 52025691 | Electronic insert, relay DPDT | Soliphant T FTM20/FTM21 |
Sliding Sleeves and Switch Point Adjustment
Sliding sleeves are used to adjust the switch point. All are made of 316L and are available in pressureless and pressurized versions.
| Order Number | Specification | Pressure Type | Applicable Model |
|---|---|---|---|
| 52023313 | Sliding sleeve R1-1/2 SS, switch point adjustment, Material: 316L | Pressureless | FTM21 |
| 52023312 | Sliding sleeve, switch point adjustment, Material: 316L | pressurised | Soliphant T FTM21 |
| 52024578 | Sliding sleeve, switch point adjustment, Material: 316L | - | Soliphant T FTM21 |
| 52025090 | Sliding sleeve, switch point adjustment, Material: 316L | pressurised | Soliphant T FTM21 |
Weather Protection Cover
The weather protection cover is used to protect the instrument from direct sunlight and extend its service life. It is suitable for a variety of Endress+Hauser instruments.
| Order Number | Applicable Model |
|---|---|
| 71040497 | FMI51/FMI52, FTI51/FTI52/FTI55/FTI56, FTI77, FTL50/FTL50H/FTL51/FTL51C/FTL51H, FTL70/FTL71, FTL80/FTL81/FTL85, FTM20/FTM21, FTM50/FTM51/FTM52 |
| 71127760 | FDR56, 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 |
Selection Notes
- Confirm the instrument model and housing type, and select the corresponding cover and seals.
- Electronic inserts must be selected according to the output signal (3-wire or relay DPDT).
- Sliding sleeves must be distinguished between pressureless and pressurized versions to ensure compatibility with process pressure.
- O-ring material must meet media compatibility requirements, such as EPDM, silicone VMQ, etc.
- When selecting the weather protection cover, check the applicable model list to ensure compatibility.
For more technical information, please refer to the product manual or contact the supplier.