DRAIN VALVE FOR EMPTYING LIQUID-FILLED SEALED PACKAGES SUCH AS BAGS Russian patent published in 1999 - IPC

FIELD: mechanical engineering; materials handling facilities. SUBSTANCE: drain valve is secured on sealed gab filled with liquid with possibility of disconnection. Valve has tubular hollow body open from at least one end. End of body to be secured on sealed bag filled with liquid has pointed taper end piece on its extreme end for piercing bag wall. End piece has holes for passing the liquid made in its wall. Holes are in communication with hollow inner part of tubular body. Diameter of tubular body after end piece is less than maximum diameter of end piece. Thanks to it shoulder is formed behind the end piece. External thread is made on outer surface of tubular body behind the end piece thanks to which pressure member with internal thread can turn on body pressing to shoulder. Valve provides emptying of sealed bags without special area for piercing. EFFECT: enlarged sphere of application. 4 cl, 4 dwg