Fire resistant valve

Details Fire resistant valve Fire resistant valve

1983-11-01

1986-02-18

Rosenthal, Arnold

Fluid handling

Destructible or deformable element controlled

Heat destructible or fusible

251214, 251330, F16K 1738, F16K 4114

Patent

active

045706590

ABSTRACT:
A normally non-rising stem valve with a stem backseat (67,70) normally maintained in unseated position by a eutectic element (62). A spring (76) urges the backseat into seating position and is placed inwardly of a replaceable stem packing (34) so that upon melting of the eutectic (62) and positive seating of the backseat (67,70), the packing (34) can be replaced.

REFERENCES:
patent: 364842 (1887-06-01), Morrin
patent: 4245661 (1981-01-01), McGee
patent: 4271857 (1981-06-01), Rowe
patent: 4307745 (1981-12-01), McGee
patent: 4510960 (1985-04-01), Jennings et al.
patent: 4540012 (1985-09-01), Bridges

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