Combined control and check valve for gas torches

Details Combined control and check valve for gas torches Combined control and check valve for gas torches

B - Operations, Transporting

23

K

B23K 5/22 (2006.01) F16K 15/18 (2006.01) F23D 14/46 (2006.01) F23D 14/82 (2006.01)

Patent

CA 2211810

A combination control valve and check valve for a gas torch is disclosed wherein a check valve is positioned within an annular control valve member downstream of a spherical control valve element with which the annular control valve member cooperates to open and close the control valve and thus the flow of gas from a source to a gas torch. The check valve protects the control valve under reverse gas flow conditions.

Soupape de réglage et clapet anti-retour combinés pour chalumeau à gaz, le clapet étant placé dans un élément annulaire de la soupape de réglage en aval d'un élément sphérique de la soupape de réglage avec lequel l'élément annulaire de la soupape de réglage agit en conjugaison pour ouvrir et fermer la soupape de réglage et ainsi régler l'écoulement de gaz venant d'une source qui alimente le chalumeau à gaz. Le clapet anti-retour protège la soupape de commande en cas de retour de gaz.

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