THERMOSTATIC VALVE FOR HEATING PLANTS Russian patent published in 2002 - IPC

FIELD: heating systems. SUBSTANCE: proposed thermostatic valve has body 80, seat 84 secured in body and shut-off member 85 actuated by pin 91 extending outside through sealing unit 92. Connecting device 98 provided for securing the control tip has bearing surface 97 located at first distance (A) from free end of pin 91 and respective first clamping surface. For securing the control tip of at least second type, external thread 101 is connected with body 80; external thread 101 is used as second clamping surface; bearing surface 97 is located near it. Body 80 is provided with connecting member 95 provided with sealing unit 92 and mounted for axial displacement from first position where first clamping surface is open for at least second position. Provided between pin 91 and shut-off member 85 is compensating joint 86 for compensation for changes in distance. EFFECT: possibility of mounting control tips of at least two different types. 9 cl, 7 dwg