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 >>> Valve Terminology - FRONT PAGE

AGA — American Gas Association

AISI — American Iron & Steel Institute

ANSI — American National Standards Institute

API -— American Petroleum Institute

API Spec GD

ASME — American Society of Mechanical Engineers

ASTM — American Society for Testing & Materials

AWS — American Welding Society

ACCUMULATOR

ACME THREAD

ACTUATOR

ADAPTER SPOOL

AIR VALVE

ALL WELDED CONSTRUCTION

ALLOY STEEL

AMBIENT TEMPERATURE

ANCHOR PIN

ANGLE PATTERN

ANGLE VALVE

ATMOSPHERIC PRESSURE

AUSTENITIC  STAINLESS STEEL

AXIAL CONTROL VALVES