Patent ID: 8561632
Filing Date: 2013-10-22
Classification: C21C,F16K,F27B,F27D,Y10T

Abstract:
1. A quick-acting valve having metering relief for oxygen lances and tubes conducting other, easily flammable gases that are present at a pressure of several bars, with the gas volume passing the valve ( 1 ) being controlled manually, for which purpose a sealing body ( 10 ) is arranged in the flow passage ( 7 ), the sealing body being axially displaceable against the force of a valve spring ( 8 ) and held by way of the valve spring ( 8 ) in a sealing seat ( 11 ), and with the sealing body, by way of a shoulder ( 15 ) protruding on a side ( 12 ) facing away from a gas inflow ( 9 ), being displaceable by a pressure part ( 4 ) of a hand lever ( 3 ) pivotally attached to a valve tube ( 2 ) in such a way that the sealing body ( 10 ) is carried along in the flow passage ( 7 ), wherein the sealing body ( 10 ) is designed in two parts and is hollow to accommodate the valve spring ( 8 ) and entirely enclose the valve spring ( 8 ) from the gas inflow ( 9 ); a front housing part ( 16 ) facing the gas inflow ( 9 ) is fixed in the flow passage ( 7 ), and a rear housing part ( 17 ) is held in a displaceable manner in the front housing part ( 16 ) so as to release the sealing seat ( 11 ) against the force of the valve spring ( 8 ) and, conversely, is held in the sealing seat ( 11 ) by the valve spring ( 8 ).