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450-XL

The 450XL compressor is so versatile it can handle almost any refrigeration system condition. The complete line of 450XL compressors is comprised of six models ranging from a nominal 25-ton 2-cylinder machine all the way to the 200-ton 16-cylinder model. Other offerings include 4, 6, 8 and 12-cylinder mid-size units. All 450XL compressors run at a maximum of 1200 RPM, and all are provided with built-in capacity reduction steps for economical operation at reduced loads.

Rated Conditions of 10F Evaporators and 95F Condensing

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450-XL

  • Top End

    • Suction and discharge porting achieves minimum pressure drop with valve plates
    • Spring loaded safety heads relieve internal cylinder pressure if subjected to an incompressible fluid
    • Three compression rings and a single, special oil scraper ring for keeping oil consumption to a minimum
    450-XL Top End

  • Piston and Connecting Rod

    • Piston and connecting rod assembly allows for movement only between the connecting rod bushing and piston pin
    • Rod bearings specially designed to supply lubrication to the piston pin bushing at all times
    450-XL Piston and Connecting Rod

  • Crankcase

    • Double tapered roller bearings enable the compressor to be used for high suction pressure applications
    • Double bellows shaft seal assembly consists of two opposed seals – one sealing from the atmosphere and the other from the crankcase
    450-XL Crank Case

  • Tri-Micro™ Oil Filter

    • Allows full flow of oil at all times, resulting in reduced wear on compressor components
    • Enclosed in a seamless drawn carbon steel shell with cast iron cover
    • Removes 95% of contaminants as small as 3 microns in size, with the convenience of a throw-away recharge element
    450-XL Oil Filter
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Modular Refrigeration Unit (MRU)

  • Used for retrofits, expansions, or new construction
  • Eliminates the need for central machine rooms that take up valuable space for operations
  • Arrives factory assembled with tested components for easy field rigging and installation
  • Cascade system requires less than 100 pounds of NH3 per refrigeration circuit
  • Entire structure is certified for seismic events and hurricane force winds
View Features
Modular Refrigeration Unit (MRU)

  • Evaporator

    • Two separate coils and sets of fans housed within a separate penthouse enclosure
    • Evaporator room attaches directly to the engine room with minimal effort
    • CO2 compressors provide hot gas to defrosts the coils, keeping NH3 out of the cold space
    MRU Evaporator

  • Engine Room

    • One standard size engine room for all capacities
    • Separated, parallel NH3 skids allow for ease of maintenance
    • CO2 skid contains and number of Vilter and Emerson CO2 components
    MRU Engine Room

  • Condenser

    • Air cooled condensers eliminate water and sewer costs (For the warmer climates, adiabatic condensers can also be supplied)
    • For applications requiring multiple units, a large fluid cooler design (such as glycol) can be utilized with plate style ammonia condensers
    MRU Condenser
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VSS

  • Better energy efficiency than twin screw compressors
  • Balanced design results in ultra-low bearing loads with significantly decreased vibration and sound levels
  • Pre-engineered standard designs, resulting in faster lead times
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VSS Feature Image

  • Parallex™ Slide System

    • Part load efficiencies which are far superior to twin screw compressors
    • Capacity and volume slides (with an expanded volume ratio of 1.2 to 7.0) move independently of each other based on load
    • Eliminates over/under compression and saving energy costs

  • Vission 20/20 Control

    • Reliable operation
    • Enhanced communications
    • Easy to use
    • Flexible and expandable

  • Ultra Fine Oil Filter

    • Maximum filtration without flow restriction for extended bearing life
    • Longer maintenance interval

  • Optional Oil Pump

    • For units needing constant oil pressure, such as booster, swing and low pressure differential applications
    • Positioned conveniently for the service technicians and field operators