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High Flow Mechanically Cleaned Strainers

Eaton MCS Self-Cleaning Strainer Series

Eaton MCS mechanically cleaned strainers are adapted from the high-performance MCF-824 filter design, optimized specifically for water-like fluids and coarser particle retention thresholds—typically tracking no finer than 150 microns.

 

No Dynamic Seals: The defining advantage of the MCS series lies in its ultra-fast, magnetically coupled actuation system. By eliminating traditional housing cover through-holes, this design completely removes dynamic seals prone to wear, leakage, and degradation. This upgrade reduces maintenance overhead, prevents fluid loss, and dramatically cuts downtime.

Eaton MCS Mechanically Cleaned Strainer

Principle of Operation

Process fluid enters through the top inlet nozzle, shifting downward directly through the center core of the strainer element. The fluid passes outward through the element walls to discharge via the side outlet port. Contaminants collect on the inner diameter (ID) of the strainer element.

How a Mechanically Cleaned Strainer Works

To maintain a clean screen without interrupting process flow, a spring-loaded wiping disc travels vertically up and down the interior length of the element. This movement drives accumulated debris down into the bottom purge chamber.

 

The mechanical drive system relies on a hollow central shaft containing heavy-duty rare-earth magnets. An internal magnet traveler inside the column is pneumatically driven by standard facility shop air injected through the base of the cylinder. The external magnet housed within the wiping disc tracks this movement precisely, sliding outside the column without any physical mechanical linkage breaching the vessel walls.

spring loaded scraping disc for mechanically cleaned strainers

Efficient Solids Purging: Because the bottom purge chamber is built completely free of horizontal catch surfaces, concentrated solids are flushed clean out of the housing in just a few seconds.

The cleaning disc itself features a unique quartered, spring-loaded architecture. This design guarantees uniform, continuous radial tension against the inner screen mesh, ensuring optimal scraping efficiency over long production runs.

System Investment: Mechanically cleaned strainers typically range from $22,000 to $35,000 per housing, varying based on size, custom parameters, and specified features.

Performance Features

No Dynamic Seals: Eliminates stem packing leaks and emissions.
Eco-Friendly Operation: Zero consumable filter bags or cartridges to purchase, change, or send to landfills.
Minimal Fluid Purge: Concentrated evacuation cycles minimize total process fluid waste.
Continuous Run: Provides filtration 24 hours a day, 7 days a week, without flow interruptions during cleaning cycles.
Inline Installation: Straightforward pipe integration to minimize field installation footprints.
Low Noise: Operates quietly at under 70 dB(A) airborne noise emissions during standard cycles.
Low Labor Overhead: Maintenance-friendly architecture sharply reduces annual operator interaction costs.
ASME Code Options: Available with optional design certification to satisfy code-stamped site requirements.
Technical Specifications
Operating Pressure 30 to 150 PSI
Process Connections 150# RF ANSI Flanged
Flow Capacity Up to 1,500 GPM per individual housing. Can be multiplexed to scale up to 12,000 GPM.
Operating Temp Up to 180°F (82°C)
Fluid Viscosity Optimized for water-like fluids
Solids Loading Maximum solids concentration up to 200 PPM
Retention Range Particle retention capabilities from 150 to 1,100 microns
Wetted Materials All wetted components constructed from 316 Stainless Steel
Internal Plastics Elastomers and seals utilize Viton / EPT and Delrin compositions
Utility & Connection Requirements
Pneumatic Supply 5 CFM of clean, dry, non-lubricated compressed air regulated between 60 to 116 PSI
Electrical Supply 115–230V / 3-Phase / 50–60Hz electrical service for control instrumentation

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