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>>> Valve Terminology - FRONT PAGE
HWO – Hand Wheel Operated
HAND WHEEL
HARD FACING
HEAD
HEADER
HEAT ANALYSIS
HEAT TREATMENT
HEAT TREATMENT CHARTS
HOLIDAY
HORIZONTAL PATTERN
HOT TAPPING
HOT TAP
HOT TEARS
HUEY TEST
HUBS
HYDRANTS
HYDRAULIC
HYDRAULIC CONTROL VALVES
HYDRAULIC MOTOR ACTUATOR (Operator)
HYDROSTATIC TEST (Shell Test}