Fastening flange

Abstract

A flange for fastening a line to a pump casing, includes: a pump casing passage; and a plurality of stop members protruding in the passage and angularly distributed around the passage, the position of the flange being angularly adjustable by the stop members. A pump may include the fastening flange. A method for adjusting the position of the flange in relation to the pump is also disclosed. This method makes it possible to avoid the position of the pump casing being imposed by the orientation of the fastening flange of the pump casing.

1 . A flange for fastening a line to a pump casing, the flange comprising:
 a pump casing passage;   a plurality of stop members protruding in the pump casing passage and angularly distributed around the pump casing passage, the position of the flange being angularly adjustable by the stop members.   
     
     
         2 . The flange according to  claim 1 , wherein the stop members comprise a positioning housing for positioning of the flange, the positioning housing open according to a direction in the lengthwise of the pump casing passage. 
     
     
         3 . The flange according to  claim 2 , wherein the stop members comprise two positioning housings for positioning of the flange, each positioning housing is open according to a direction opposite in the lengthwise of the pump casing passage. 
     
     
         4 . The flange according to  claim 1 , wherein the stop members comprise a flat surface perpendicular to the pump casing passage. 
     
     
         5 . The flange according to  claim 1 , wherein the flange has a shape which has three axes of symmetry. 
     
     
         6 . The flange according to  claim 1 , wherein the stop members comprise protuberances protruding parallel to the axis of the pump casing passage.