opening on surplus pressure on one side; closing on insufficient pressure on one side

Full Title

Safety valves; Equalising valves > opening on surplus pressure on one side; closing on insufficient pressure on one side

Classification Context

Section:

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

Class:

ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

Subclass:

VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING

Child Classifications

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• F16K 17/04 spring-loaded
• F16K 17/12 weight-loaded
• F16K 17/14 with fracturing member
• F16K 17/164 and remaining closed after return of the normal pressure
• F16K 17/168 combined with manually-controlled valves, e.g. a valve combined with a safety valve