MLC-70 - Float Level Switch

The MLC-70 float level switch sends an electrical signal in response to refrigerant liquid level changes.

Applications

Typical applications include separator vessels, chillers, intercoolers, and other industrial refrigeration equipment that require liquid level control or monitoring.

Technical Characteristics

  • Compact dimensions.
  • Simple operation.
  • Operating unit components and wetted parts in type 316 stainless steel.
  • Available with ice-breaker and without ice-breaker versions.

Request a Quote

Contact Contromag with the vessel type, refrigerant, mounting requirement, and control function needed for your installation.

Brazilian Manufacturing
Quality Assurance
Technical Support

Technical Information

Catalog-backed product facts for engineering, procurement, and application review.

Product Overview

Model
MLC-70
Category
Float level switch
Industries
Industrial refrigeration

Applications and Media

Typical applications
Separator vessels, Chillers, Intercoolers, Flooded evaporators, Transfer vessels, High-pressure receivers, Controlled-pressure receivers, Suction accumulators, Refrigerant-liquid recirculation accumulators
Compatible media
Refrigerant liquid, Ammonia, R-22, R-507, R-134A, Other commonly used refrigerants
Customization options
With ice-breaker, Without ice-breaker

Technical Characteristics

Operation type
Magnetic float level switch with external SPDT microswitch
Pressure range
Working pressure: 31 bar, 3 MPa, 450 psig
Temperature range
Ambient temperature: -45 deg C to 65 deg C; Operating temperature range: -45 deg C to 65 deg C; Refrigerant working temperature: -40 deg C to 80 deg C
Mounting orientation
Vertical mounting
Installation constraints
Must be mounted vertically, For ammonia applications, avoid level interference with the lowest equilibrium level, Service valves at MLC-70 connections should be used with stems in the horizontal direction, When several MLC units are mounted on the same control column, use manual service balance valves only at the top and bottom of the column

Construction and Options

Materials
Type 316 stainless steel operating unit components and wetted parts
Electrical
Switch: SPDT microswitch
Features
Weatherproof enclosure, Improved and precise magnetic switch mechanism, Standardized interchangeable components between MLC-70 versions, Made in Brazil, Weight 10 kg
Functions
Energize solenoid valves, Energize relays, Control refrigerant liquid pumps, Shut down compressor in specified cases, Activate safety alarms, Activate lamps for high or low liquid level indication

Documentation and Quote Context

Catalog revision
10-2019
Quote process
Contact Contromag with vessel type, refrigerant, mounting requirement, and control function.

Related Products

Documents and Manuals

MLC-70 Product Catalog REV-01 2022

PDF

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