in which the closing movement, either retarded or not, starts immediately after opening

Full Title

Fluid-delivery valves, (for liquid handling B67D; for flushing devices for water-closets or the like E03D) > Self-closing valves, i.e. closing automatically after operation > in which the closing movement, either retarded or not, starts immediately after opening

Child Classifications

Navigate with arrow keys, Enter to open

• F16K 21/08 with ball-shaped closing members
• F16K 21/10 with hydraulic brake cylinder acting on the closure member
• F16K 21/12 with hydraulically-operated opening means; with arrangements for pressure relief before opening