Dry pipe valve for fire protection sprinkler system

Details Dry pipe valve for fire protection sprinkler system Dry pipe valve for fire protection sprinkler system

2006-09-12

2006-09-12

Nguyen, Dinh Q. (Department: 3752)

Fire extinguishers

Fluid systems

Distributing systems

C169S022000, C169S019000, C169S020000, C137S516250, C137S527800, C137S523000, C251S359000

Reexamination Certificate

active

07104333

ABSTRACT:
A differential-type dry pipe valve for a fire protection sprinkler system has a ratio of effective air sealing area to service water sealing area that is smaller than a ratio of service water pressure to system air pressure at which the fire protection sprinkler system is actuated.

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