The INVALCO Model CMEAQX and CMEAFX Float Controls give an electrical contact closure for level alarm or control (pump-up / pump-down). An explosion-proof Micro Switch is actuated by two adjustable yoke-type pusher arms, so the high and low set points are easy to adjust. With level below the float the switch sits in the low-level position until the float reaches the preset high level, then reverses until the float drops back to the preset low level.
Key specifications
Float: 316 SS, 3-1/2" diameter
Maximum working pressure: 300 psig (limited by float collapse pressure and process connection)
Temperature: -20 to 250 °F
Switch contacts: Standard SPDT, 15 A at 125/250/480 VAC, 1/2 A at 125 VDC, 1/4 A at 250 VDC; optional DPDT, 10 A at 125/250 VAC (DPDT is not gap action)
Switch housing: Explosion-proof; UL and CSA approved
Gear stem: 303 SS standard; 316 SS optional
Options: Steel and ductile iron models are NACE adaptable
How to specify / order (models include 14" float rod and SPDT switch)
CMEAQX-403: 4" grooved, 300 psi, ductile iron body, 316 SS float, part no. 80002501
CMEAFX-402S: 4" 150 lb RF flange, 275 psi at 100 °F, cast steel body, 316 SS float, part no. 80002304
Float rod lengths: 8", 14" (standard), 20", 26", 32"; 303 SS rods 45231080 / 45231140 / 45231200 / 45231260 / 45231320; 316 SS rods 45233081 (8"), 45233140 (14"), 45233202 (20"); 316 SS in 26"/32" consult factory
Switch: SPDT 33100542 (std) or DPDT 33103417
Note: the bulletin parts list calls the grooved case "Case for CMEAQX-401" (45012492) while the ordering table lists CMEAQX-403; page 3 also carries a different revision date (11/16). Confirm the model number with the factory.
Pricing and lead time are quoted per configuration. Send the model code (or your application details), product, flow range, and pressure/temperature to Flow Measurement Services for a quote. Specifications summarized from Smith Meter (INVALCO) bulletin SSIN008 Rev 0.1 (8/17); confirm current data with the factory before ordering.
Smith Meter (formerly FMC Technologies / TechnipFMC Measurement Solutions), now manufactured by Guidant. Flow Measurement Services supplies and services Smith Meter equipment.