FM 1045 : 2005

1 Introduction
  1.1 Purpose
  1.2 Scope
  1.3 Basis for Requirements
  1.4 Basis for Approval
  1.5 Basis for Continued Approval
  1.6 Effective Date
  1.7 System of Units
  1.8 Applicable Documents
  1.9 Definitions
2 General Information
  2.1 Product Information
  2.2 Approval Application Requirements
  2.3 Requirements for Samples for Examination
3 General Requirements
  3.1 Review of Documentation
  3.2 Physical or Structural Features
  3.3 Clearances
  3.4 Materials
  3.5 Markings
  3.6 Manufacturer's Installation and Operation Instructions
  3.7 Calibration
4 Performance Requirements
  4.1 Examination
  4.2 Clapper Strength
  4.3 Resilient Seat (Reverse Flow) Leakage
  4.4 Metal-To-Metal (Reverse Flow) Seat Leakage
  4.5 Hydrostatic Strength
  4.6 Friction Loss Determination
  4.7 Differential Cracking Pressure
  4.8 Cycle Test
  4.9 Bonding Adequacy
  4.10 Water Absorption
  4.11 Aging
  4.12 Additional Tests
5 Operations Requirements
  5.1 Demonstrated Quality Control Program
  5.2 Facilities and Procedure Audit (F&PA)
  5.3 Manufacturer's Responsibilities
  5.4 Manufacturing and Production Tests
APPENDIX A: Units of Measurement
APPENDIX B: Approval Marks
APPENDIX C: Tolerances
APPENDIX D: Drawings
APPENDIX E: Sample Listing

Covers the design and performance requirements for 2, 2-1/2, 3, 3-1/2, 4, 5, 6, 8, 10 and 12 in. normal size waterflow detector check valves for their intended application of permitting flow of water in one direction and preventing flow in the opposite direction while permitting the supervision of private fire service lines in order to detect loss of water through leakage or misuse.