Fluid handling – Destructible or deformable element controlled – Heat destructible or fusible
Patent
1998-08-07
1999-09-14
Rivell, John
Fluid handling
Destructible or deformable element controlled
Heat destructible or fusible
137 75, F16K 1738
Patent
active
059506563
ABSTRACT:
The invention concerns a thermal safety fitting in which the closure motion of the obturator is longitudinal with respect to the obturator seat. The aim is to avoid lateral excursions of the obturator, while keeping manufacturing costs and structural size as low as possible. The obturator (12) is held in the open position in the housing (1) on the longitudinal axis of the obturator seat (28) by means of a generally U-shaped element (30). The two arms (9) of the U-shaped element (30) are located in the vicinity of a reduced-diameter section (17) of the obturator (12). The part (13) of the U-shaped element (30) joining the two arms (9) rests against a thermosolder (14). If the thermosolder (14) melts, the arms (9) no longer remain in the reduced-diameter section (17) owing to the change in the position of the U-shaped element (30), and the obturator (12) thus moves into the closed position under the action of a closing spring (24).
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Farid Ramyar
Mertik Maxitrol GmbH & Co. KG
Rivell John
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