Table of Contents

Preface<br>1 Scope<br>2 Definitions, Symbols, and Abbreviations<br>3 Reference Publications<br>4 General Requirements<br>5 Regulator Valve Body<br>6 Diaphragm Casing Assembly<br>7 Diaphragm<br>8 Loading Spring<br>9 Valve Linkage and Valve Disc<br>10 Orifice<br>11 Pressure Relief<br>12 Vent<br>13 Marking<br>14 Performance<br>Appendices<br>A - Drip and Splash Test<br>B - Variable Temperature Performance Test<br>C - Environmental Test for Meter and Regulator Set Configurations<br>D - Classification of Markings<br>E - Marking Material Adhesion

Abstract

Pertains to the construction, materials, performance, and testing of NPS 1-1/4 in and smaller self-acting service-type regulators with internal relief valves or overpressure cut-off (OPCO) devices, or both, utilized to control the pressure of gas delivered to a customer's piping at a delivery pressure of 5 to 9 in water column (1.24 to 2.24 kPa), for installations designed for capacities up to 250 SCFH (7.1 m/h[3]).

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Canadian Standards Association
ProductNote	Reconfirmed EN
Pages
ISBN