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PATTERSON Industries Canada "The Process Equipment People" designs, engineers and manufactures Evaporators to customer's specifications and process parameters.

PATTERSON's Shell & Tube type Heat Exchangers and Condensers are built to meet the requirements of the ASME Code, Section VIII, Division I and in accordance with the Tubular Exchanger Manufacturers Association (TEMA) standards. Mechanical and Thermal design utilizes computerized technology that allows for the optimum performance while considering cost and available space.

PATTERSON's manufacturing facility together with full transportation access allows for the machining and fabricating of Heat Exchangers and Condensers from most of the more common materials, in sizes up to 15 feet (4.5 m) in diameter and up to 100 tonnes. For those large and/or heavy units, equipment having special design requirements, high pressure operating conditions or unusual materials of constructions; these are the application where PATTERSON's experience will benefit the end-user.


  • Concentration of bi-products from food and feed industries
  • Concentration of waste streams from food and feed industries
  • Concentration of waste streams from steel mills and metal working industries
  • Concentration of waste streams from chemical industries

Design Features:

PATTERSON Evaporators are computer designed for optimum performance at a minimum cost.

PATTERSON can either build to your designs or develop the equipment requirements from your process parameters.

Units are designed, inspected and tested in our manufacturing facility to meet ASME Code, Section VIII, Division I and TEMA "B" "C" and "R" Standards.

Manufactured from a full range of Low Temperature and Regular Carbon Steels, Stainless Steels, Inconels, Incoloys, Nickels, Hastelloys and Clad Materials.

Complete design, engineering and manufacturing under one roof with our modern state-of-the-art, machining centers, automated tube to tubesheet welding, weld preparation grinding equipment and automated welding systems.

Units can be individually designed to customer's material specifications and process parameters. Complete the Evaporator Specification Sheet and submit by e-mail to PATTERSON for quotation.

Control Systems

Please note:  PATTERSON has in-house expertise to design and supply operating control systems for all of our process equipment, whether it is a simple start/stop with cycle time or complex multi-stage systems executing recipes or formulas and communicating with existing plant control systems.

Close up of Control Box with stop/start, jog/run and 0-12 hr timer.

Control Panel Overview including HMI Touch Screen.

Close-up of Inside of Control Panel with PLC and Variable Frequency Motor Controllers.



  1. Falling Film/Forced Circulation   14" diameter x 180" long, 304 stainless steel shell side, 316 stainless steel tube side, type BEM Heat Exchanger with interchangeable channels (can be used horizontally or vertically), 2" O.D. tubing size, 94 sq.ft (8.75 sq.m) heat transfer area.

                                           Shell                     Tube
    Design Pressure               75 psig                   75 psig
    Design Temperature          320F                     320F
    Min. Design Metal Temp    32F                       32F
    At Pressure:                     75 psig                   75 psig


  2. Condenser   8 x 180 straight side, Type BEM Heat Exchanger, 304 stainless steel shell side, 316 stainless steel tube side, 1/2" O.D. tubing size, 98 sq.ft (89.1 sq.m) heat transfer area.

                                            Shell                      Tube
    Design Pressure                75 psig & F.V.         75 psig
    Design Temperature           320F                     320F
    Min. Design Metal Temp     32F                       32F
    At Pressure:                      75 psig                   75 psig


  3. Vapour Chamber   2'0" diameter x 2'0" side of conical bottom head, 24" ID x approx. 48" high stainless steel 304 including sight glass.

    Design Pressure                 75 psig
    Design Temperature            320F 
    Min. Design Metal Temp      32F
    At Pressure:                       75 psig


All built in accordance with ASME Code  and TEMA Standards and also National Boiler Board "U " stamped.  

Mounted on a common frame and loaded on aluminum tractor trailer including railings so it can be used as a mobile plant.  Still required is re-circulation pump, vacuum pump and instrumentation.  Typical set-up as indicated on P&ID below.


Overall view of plant


Close up of Evaporator


Close up of Evaporator and Condenser


Close up of plant