Establishments primarily engaged in manufacturing industrial valves. Establishments primarily engaged in manufacturing fluid power valves are classified in Industry 3492; those manufacturing plumbing fixture fittings and trim are classified in Industry 3432; and those manufacturing plumbing and heating valves are classified in Industry 3494.
Boiler gauge cocks
Valves, automatic control: industrial, except fluid power
Compressed gas cylinder valves
Valves, industrial: gate, globe, check, pop safety, and relief
Fire hydrant valves
Gas valves and parts, industrial
Valves, relief: over 15 lbs. w.s.p.
Pop safety valves, over 15 lbs. w.s.p.
Valves, solenoid: except fluid power
Pressure valves, industrial: except power transfer
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