Compression Solutions

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Compression Solutions

• By

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SCFM Introduces the Vilter Single Screw Compressor

• After Several Years of working with the Vilter
  Single Screw, in Mid 2004 SCFM signed an
  Exclusive Distributorship Agreement for the
  Natural Gas Industry.
• The Placement and Application of this equipment
  in the Gas Industry is one of the biggest
  innovations made in many years.
• The following Slides will reveal why!!

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Why Use the New SCFM/Vilter Single Screw
Compressor

• When the new unit applications fit, the
  SCFM/Vilter Single Screw Compressor is simply the
  Best Compressor on the Market Today. It has the
  Lowest Total Life-Cycle Cost and is one of the
  most efficient.
• What it does best is Run! Run! Run! almost
  maintenance free. Because of the Superior
  Unique Design of this equipment, many of the
  existing placements have been in service for over
  5 years without experiencing any maintenance
  downtime except for routine PMs.
• Can your current compression equipment make this
  claim?

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The Single Screw History

• First C-P design patented by Bernard Zimmern in
  France in the early 1960s.
• First mass marketed in Japan in 1973.
• Now over 400,000 single screw compressors are
  utilized in air, refrigeration and process gas
  applications world-wide.
• The earliest single screw compressors were used
  in air service only.

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Process Applications

• Wellhead Compression
• Gas Gathering
• LNG Boil Off
• Fuel Gas Boosters (Methane, H2 Mixtures)
• Compression (Propylene, CO2, CO, N2 )
• Digester Gas
• Flare and Vent Gas
• Landfill Compression
• Recycle Gas

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Single Screw Design

• Main screw utilizes six helical grooves.
• Gate rotors utilize eleven teeth.
• Gate rotors turn at 6/11 of main shaft speed.
• Results in 43,200 compression strokes per
  minute at 3,600 RPM.
• Parallex slide system for capacity and volume
  ratio control, resulting in peak part-load
  efficiency.

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Major Components

• Main Screw
• Six Helical Grooves
• Cast Iron Material

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Major Components

• Main Screw
• Six Helical Grooves
• Cast Iron Material
• Two Gaterotors
• Eleven Teeth
• Rotate at 6/11 of Driveshaft Speed
• PPS Composite Material

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Compression

• Operation at 3600 RPM Results in 21,600
  Simultaneous Compression Strokes Per Minute
• Smooth Operation with Low Torque and Pulsation
  Levels

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Design Features

• Balanced Loading of the Main Screw
• Radially Balanced
• Axially Balanced
• Resulting Low Bearing Loads

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Design Features

• Gaterotor Loading
• Tooth Area Decreases as Pressure Increases
• Easily Defined Loads
• Inherent Low Bearing Loads

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Design Features

• Typical Rotor Assembly has
• Pair of Angular Contact Bearings to Axially
  Locate the Assembly
• A Cylindrical Roller Bearing to Position the
  Opposite End

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Parallex Slide Features

• Variable Capacity Slide
• Infinite Operation from 10 to 100
• Variable Volume Ratio Slide
• Infinite Operation from Volume Ratios of
  1.2 to 7.0

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Efficient Compression

• Desire Optimum Location of Volume Ratio Slide ie.
  Discharge Port at any Condition
• Over or Under Compressing the Gas Wastes Energy
  and Horsepower

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Design Features

• Able to Compress to Ratios above 201
• Oil Absorbs Heat of Compression

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Summary

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Single Screw Compressor Design Features

• Balanced Main Screw
• Radially and Axially Balanced
• Gaterotor Loading
• Tooth Area Decreases as Pressure Increases
• Low Bearing Loads

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Single Screw Compressor Design Features

• Multiple Slide Configurations
• Maximum Operational Flexibility with the
  Parallex Slide System
• Unloaded Starting
• Part Load Efficiency

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Compelling Reasons to buy the SCFM Vilter Package

• Lowest Maintenance Compressor Available today in
  the Marketplace
• Oil consumption approaching 0 vs. reciprocals
  with up to 400/mo.
• Unit can be broadly applied with suction
  pressures from Vacuum up to 500 psig.
• Vs. limited suction available on Twin Screws
• Vs. Recips, Vilter can handle a wide range of
  suction pressures automatically with stepless
  control.
• SCFM build the best Gas Delivery Systems (GDS) in
  the industry today.

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Thank you!