McNab Model SKID Yeast Management Systems 

Printable Version

Note, the printable version may take several minutes to download.

McNab SKID systems are customized for the particular application the brewer has need to control.  While the particular blending process will vary depending on the brew being processed, McNab SKID systems are ideal for the monitoring and controlling of pitching, cropping, transfer, blending, as well as other custom SKIDs.

Before you begin, take a look at the interactive chart which illustrates applications of McNab equipment and provides links to specific model information.

Related Technical Papers/News Releases

Complete, Accurate Proportional Blending

The monitoring is performed by the McNab fluid analyzers, which examine such properties as suspended solids concentration, particle size, clarity, chemical concentration, optical density and others.

The monitors employ an across-the-pipe measuring technique, whereby a beam of collimated light is shone through the process line and picked up by a photo-electric scanner. The scanner processes the signal and transmits the real-time data to an indicator/controller cabinet, which processes the signals and compares them to established set-points. As the brew's properties deviate from the set point, output control signals from the cabinet are continuously varied to control the flow of the blending agents into the process line.

The measuring technique employed is dependant on the process being monitored. McNab analyzers employ variety of measuring techniques, including nephelometric (90o scatter), back-scatter, forward scatter, ratio, ultraviolet and near-infrared measurements.

Available SKIDs

Other Custom SKIDs

With nearly four decades of experience in beer process monitoring and control, McNab has the capabilities to custom-design the SKID process perfectly suited for the needs of today's breweries.  McNab SKIDS can be customized to control the brewing process by monitoring suspended solids concentration, particle size, clarity, chemical concentration, optical density and/or other characteristics of the in-line beer.


Model SKID
Pipe In: ASTM Flanges 2" to 6" 
50 mm to 150mm DIN
Pipe Out: ASTM Flanges 2" to 6" 
50 mm to 150mm DIN
Side Stream: ASTM Flanges " to 2"
25mm to 150mm DIN
Floor Area: 1m x 2m
SKID Weight: 750 pounds.
SKID Height: 2m
Factory Service: 117/230, 50 or 60 Hz
Construction Material: Wetted parts 316 (typical), epoxy coated steel.
Analyzer: Application dependant.  Typically optical cell counter.
Flow Meter: Mass flow meter, electronic type.
Sample Port: Zwickles
Totalizer: Included as necessary.
Output to factory: 4-20 mA Isolated.
Controller Included for valve or pump as appropriate.
Tank: By others.
Matching Laboratory Unit: By McNab.
Operational Control: Typically across 10 to 1 change of concentration and/or flow.  Cascade for larger changes.
Custom Design: Developed per specification.
Service: Training and commissioning on site.
Laboratory Analysis/Work-up: Available
Specification may be changed or improved as necessary.

383-2 East 29th Street | Buena Vista, VA | USA 24416-1293

540.261.1045 voice | 540.261.1268 fax |

Copyright 1999 - 2010  McNab, Inc. All Rights Reserved.  Last modified: 08.12.2010

Standard Terms and Conditions

Visa InternationalMcNab accepts all major credit cards.