Fire-safe ventilation valve

Details Fire-safe ventilation valve Fire-safe ventilation valve

1986-03-05

1987-03-24

Weakley, Harold W.

Fluid handling

Processes

Affecting flow by the addition of material or energy

137 67, 137 74, 251308, 251317, F17D 116

Patent

active

046517634

ABSTRACT:
A means and method for assuring a tight sealing closure of a valve in a high temperature condition, such as fire, is provided by an expendable link on the downstream side of the valve stem and an intumescent material and piston on the upstream side of the valve stem so that, at an elevated temperature condition, the expendable link gives way to create a tolerance allowing the piston driven by the expanding intumescent material to shift the valve closure element in the direction of the valve seat to accommodate for any deterioration of the valve seal.

REFERENCES:
patent: 3666234 (1972-05-01), Scavamucci

Affiliated with

Also associated with

Rating

Fire-safe ventilation valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fire-safe ventilation valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fire-safe ventilation valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1347855