API 618 : 2007 : R2016

1 Scope
2 Normative References
3 Definitions of Terms
4 General
  4.1 Unit Responsibility
  4.2 Unit Conversion
  4.3 Nomenclature
5 Requirements
  5.1 Dimensions
  5.2 Statutory Requirements
  5.3 Conflicting Requirements
6 Basic Design
  6.1 General
  6.2 Bolting
  6.3 Calculating Cold Runout
  6.4 Allowable Speeds
  6.5 Allowable Discharge Temperature
  6.6 Rod and Gas Loads
  6.7 Critical Speeds
  6.8 Compressor Cylinders
  6.9 Valves and Unloaders
  6.10 Pistons, Piston Rods, and Piston Rings
  6.11 Crankcases, Crankshafts, Connecting Rods, Bearings and
       Crossheads
  6.12 Distance Pieces
  6.13 Packing Cases and Pressure Packing
  6.14 Lubrication
  6.15 Materials
  6.16 Nameplates and Rotation Arrows
7 Accessories
  7.1 Drivers
  7.2 Couplings and Guards
  7.3 Reduction Gears
  7.4 Belt Drives
  7.5 Mounting Plates
  7.6 Controls and Instrumentation
  7.7 Piping and Appurtenances
  7.8 Intercoolers, Aftercoolers, and Separators
  7.9 Pulsation and Vibration Control
  7.10 Air Intake Filters
  7.11 Special Tools
8 Inspection and Testing
  8.1 General
  8.2 Inspection
  8.3 Testing
  8.4 Preparation for Shipment
9 Vendor's Data
  9.1 General
  9.2 Proposals
  9.3 Contract Data
Annex A (informative) - Data Sheets
Annex B (informative) - Capacity Rating and Tolerance
Annex C (informative) - Piston Rod Runout
Annex D (informative) - Repairs to Gray or Nodular Iron Castings
Annex E (informative) - Purchaser's Checklist
Annex F (normative) - Vendor Drawing and Data Requirements
Annex G (normative) - Figures and Schematics
Annex H (informative) - Materials for Major Component Parts
Annex I (informative) - Distance Piece Vent, Drain and Buffer
        Systems to Minimize Process Gas Leakage
Annex J (informative) - Reciprocating Compressor Nomenclature
Annex K (informative) - Inspector's Checklist
Annex L (informative)
Annex M (informative) - Design Approach Work Process Flowcharts
Annex N (informative) - Guideline for Compressor Gas Piping Design
        and Preparation for an Acoustic Simulation Analysis
Annex O (informative) - Guidelines for Sizing Low Pass Acoustic
        Filters
Annex P (informative) - Piping and Pulsation Suppression Device
        Shaking For Guidelines
Annex Q (informative) - Compressor Components - Compliance with
         NACE MR0175

This standard covers the minimum requirements for reciprocating compressors and their drivers for use in petroleum, chemical, and gas industry services for handling process air or gas with either lubricated or non-lubricated cylinders.