Lift valves , i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces ( ; diaphragm valves F16K7/00)

Child Classifications

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• F16K 1/02 with screw-spindle (F16K1/12 - F16K1/28 take precedence; actuating mechanisms with screw-spindles F16K31/50)
• F16K 1/12 with streamlined valve member around which the fluid flows when the valve is opened
• F16K 1/14 with ball-shaped valve member (check valves F16K15/04)
• F16K 1/16 with pivoted closure-members
• F16K 1/24 with valve members that, on opening of the valve, are initially lifted from the seat and next are turned around an axis parallel to the seat
• F16K 1/30 specially adapted for pressure containers
• F16K 1/32 Details (details of more general applicability F16K25/00 - F16K51/00)