This still float safety switch, part 0315001, is used in the still/distillation level safety circuit on compatible FMB / Firbimatic, Union, and Realstar dry cleaning machines.
The switch helps monitor the level condition in the still or distiller area and provides a safety/control signal so the machine can avoid unsafe still operation when the float signal or liquid level is not correct.
Use this listing where the original machine record, installed component, and service manual match 0315001, old FMB / Firbimatic A5981, or C1400003. Before ordering, compare the installed switch, float/rod assembly, wiring, mounting, and manual table reference.
Technical Specifications
Component type: still/distiller level safety float switch.
Service function: float-operated level safety/control signal for the still or distillation section.
Common listing description: Still Level Safety Float Switch.
Additional manual/price-list wording: Still Float Switch, Still Float, Floating Level Control, and Interruttore a Galleggiante.
Primary FMB / Firbimatic part reference: 0315001.
Legacy FMB / Firbimatic reference: A5981.
Component/reference number found with this listing: C1400003.
Manual table context: 4-CEL 0315001. Related rod/float assembly reference 2-ASTA 40A763/PGT may help physical verification, but must be checked against the installed assembly before ordering.
Do not substitute nearby level/float references such as 0315008, 0315013, 0315014, 0315015, 0315017, or 0315018 unless the machine manual and installed component confirm the match.
Part Numbers & Cross References
Use this section to separate direct part numbers from cross-reference and verification notes. Always confirm the installed component, machine manual, still/distiller location, wiring, mounting, and physical float/rod arrangement before ordering.
Part Numbers
FMB / Firbimatic
0315001
031-5001
A5981
C1400003
4-CEL
Union
0315001
031-5001
Realstar
0315001
031-5001
Cross References
FMB / Firbimatic
Old FMB / Firbimatic reference A5981 is listed with 0315001 as Still Float Switch / Still Level Safety Float Switch.
C1400003 appears as a component/reference number tied to the Still Level Safety Float Switch description.
Manual wording includes 4-CEL 0315001 and Interruttore a Galleggiante for the float-switch table entry.
2-ASTA 40A763/PGT is a related rod/assembly context reference for physical verification only; do not treat it as a substitute part without matching the installed assembly.
Union
Union manual/OCR records show 0315001 in still/distiller table contexts. Compare against FMB / Firbimatic 0315001, old A5981, and C1400003 when the installed switch and machine manual match.
Realstar
Realstar manual/OCR records show 0315001 in KM/RKM, M/RM, and RS-series contexts. Compare against FMB / Firbimatic 0315001, old A5981, and C1400003 when the installed switch and machine manual match.
Machine Fitment
Machine fitment for Still Float Safety Switch | FMB / Union / Realstar 0315001 is organized through Corbett Equipment master manufacturer and model-lineage evidence. Use this section as a fitment-reference map, then verify the installed component, machine data plate, service manual, dimensions, voltage or pressure ratings where applicable, mounting, fittings, and part-number path before ordering.
Master manufacturer / model lineage
Corbett Equipment and FXT Factory records treat FMB / Firbimatic as the master machine-model lineage for this catalog family. Union, Realstar, and Sovrana references are derivative-reference families that must be matched through the installed component, manual table, and machine-specific service record.
FMB / Firbimatic machine models and master families
EcoPro / ECOPRO family: ECOPRO 915, ECOPRO 915S, ECOPRO 918, ECOPRO 918S, ECOPRO AM, ECOPRO AM918.
Saver family: SAVER 35, SAVER 350, SAVER 35P, SAVER 350P, SAVER 40, SAVER 40P, SAVER 80SM, SAVER HYDROCARBON.
F-series / 18 kg family: F AS 18 LT2, F AS 18 ST2, F18 LT2, F18 LT3, F18 ST2.
EcoGreen family: EcoGreen 35, EcoGreen 40 / L2118, EcoGreen 50 / L2120, EcoGreen 60 / L2125, EcoGreen 80 / L2132, EcoGreen 95, EcoGreen 95SM, EcoGreen DC, EcoGreen S50 / S2120, EcoGreen Advance.
EcoGreen SM / AM-prefix soft-mount family: AM918, AM925, AM940, AM2118, S2118, EcoGreen 40SM, EcoGreen 60SM, EcoPro 40SM, EcoPro 60SM.
EcoLine family: EcoLine 35, ECOLINE, ECOLINE 16.
Vortex family: VORTEX 40, VORTEX 50, VORTEX 80, VORTEX 95, VORTEX L2018, VORTEX S2018, VORTEX PRIMARY, Vortex 40 Plus, Vortex 50 Plus, Vortex 80 Plus, Vortex 50 Plus Tandem.
Axial family: AXIAL 40, AXIAL 918, AXIAL 925, AXIAL-918.
System and feature lineage: Hydro-Vac, Hydro-Chill, Tri-Flow, Smart-10, SecureLock, and related recovery, filtration, distillation, cooling, and control-system records.
Other recovered FMB reference families: Eco-15LT3, Eco-15LT-3, L 18, L-250, L750, L2118, P16, P1567, P1705, P6241, T1838.
Recovered numeric model set: 035, 05, 068, 08, 09, 10, 100, 12, 120, 13, 130, 14, 15, 153, 16, 20, 208, 220, 23, 24, 25, 30, 306, 310, 32, 338, 340, 35, 36, 37, 40, 410, 45, 465, 473, 50, 520, 60, 600, 63, 70, 71, 724, 765, 80, 895, 896, 918, 95.
Factory/model-code references observed in recovered Corbett lineage records: HC7-18-CL, HC7-18-CLM, HC7-18-CS, HC8-18-CL, HC8-18-CLM, HC8-18-CS.
Union machine models and derivative families
Core Union derivative references: HXP8018C, L840, P840.
HL / HP / HXL family references: HL-780, HL780, HL-840, HL840K, HP840K, HXL8018K, HL-850, HL850K, HP850K, HL-860, HL860K, HP860K, HXL8025K, HL-880, HL880K, HXL8032K, HL-890, HL890K.
L / RS family references: L740S, L740, HL740, L750, RS-102, RS-122, RS-152.
Verify Union fitment by matching the installed part, Union manual table, FMB / Firbimatic master-model relationship, connection details, and service location.
Realstar machine models and derivative families
KM / KT derivative references: KM315, KM315-K4, KT215, KT215-K4, KM343, KM343-K4, KT343, KT343-K4.
Larger KM / KT references: KM403, KM403-K4, KT403, KT403-K4, KM503, KM503-K4, KT503, KM703, KM703-K4, KM803, KM803-K4.
RKM references: KM-36 / RKM36, KM-340 / RKM340, KM-400 / RKM400.
Verify Realstar fitment by matching the installed part, Realstar manual table, FMB / Firbimatic master-model relationship, connection details, and service location.
Sovrana and other derivative references
Sovrana and other derivative-model references may appear in Corbett lineage records. Treat them as research clues only unless the installed component, machine manual, and part-number path confirm the application.
Ordering Verification
Confirm the installed part number, legacy A5981 reference, C1400003 reference, visible component markings, physical float/rod arrangement, wiring, connector style, mounting, and still/distiller location before ordering.
Match the machine data plate and service manual table against the installed switch. This listing is for the still float safety switch / floating level control, not the other nearby short/long float switches or preseparator level controls.
For FMB / Firbimatic, Union, and Realstar machines, compare photos of the installed component and the manual exploded-view/table reference. Contact Corbett Equipment if you need help verifying the correct switch before ordering.