AGA XQ8803 : LATEST

SECTION 9.1 INTRODUCTION
Design Purpose Classification
Flow Range Consideration
Flow Characteristics and Other Considerations
SECTION 9.2 STATION SPECIFICATIONS
Scope
Volume
Pressure Conditions
Type of Load
Gas Conditions
Ambient Conditions
Site Conditions
Sample Station Survey Form
SECTION 9.3 REGULATORS
Downstream Pressure Control
Vent Requirements
Working Space Requirements
Installation and Removal Accommodations
Pressure Sensing Point
Inlet and Outlet Connections
Noise Abatement
Safeguards for Reliable Service
SECTION 9.4 SAFETY CONTROL VALVES
Purpose
Monitor Regulators
Pressure Relief Valves
Automatic Shut-off Valves - Or Trip-out Valves
Other Considerations
SECTION 9.5 VALVES AND PIPING CONFIGURATIONS
Scope
Header and Piping Concepts
Geometric Header Considerations
Pressure Drop
Examples
Types of Valves
SECTION 9.6 MEASUREMENT
Types of Meters
SECTION 9.7 AUTOMATION
Multiple Run Station
How to Size Orifice
SECTION 9.8 PREPARATION OF NATURAL GAS FOR MARKET
Impurities
Limitation of Impurities
Gas Scrubbers and Cleaners
Types of Solid Impurities
Sizing of Cleaning Equipment
Types of Cleaners
Freezing in Meters, Regulators, and Pipelines
Prevention and Removal of Freezing and Hydrate
Formation
Gas Dehydration
Gas Heaters
Reduction of Line Pressure
Introduction of Inhibitors

Offers guidelines for the design of meter and regulatory stations, including station specifications, regulators and control valves. Comprises piping configuration, meter types, automation and preparation of natural gas for market.