Heat responsive back seat arrangement for valve operator

Details Heat responsive back seat arrangement for valve operator Heat responsive back seat arrangement for valve operator

1978-10-27

1981-01-20

Schwadron, Martin P.

Fluid handling

Destructible or deformable element controlled

Heat destructible or fusible

251214, 251330, F16K 1738, F16K 4114

Patent

active

042456614

ABSTRACT:
A valve operator that is provided with a back seat which comes into use when the normally non-rising stem operator and its bearing-enclosing bonnet gland are raised, e.g. so that stem packing can be replaced, is further provided with another way to actuate the back seat, one which will come into play should the valve be subjected to heat of sufficient intensity as to call the integrity of the stem packing or other critical parts into question. The further activation mode depends on the melting of fusible material which permits the operator and its bearings to rise relative to the bonnet.

REFERENCES:
patent: 1954643 (1934-04-01), Neuhaus
patent: 2647721 (1953-08-01), Volpin
patent: 2935343 (1960-05-01), Ellis
patent: 3349789 (1967-10-01), Crain et al.
patent: 3788600 (1974-01-01), Allen
patent: 3842853 (1974-10-01), Kelly et al.
patent: 4149558 (1979-04-01), McGee et al.

Affiliated with

Also associated with

Rating

Heat responsive back seat arrangement for valve operator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heat responsive back seat arrangement for valve operator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat responsive back seat arrangement for valve operator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1762079