Patent ID: 9717935
Date: 2017-08-01
CPC Classifications: A62C,Y10T

Claim:
1. A venting assembly for use with a wet pipe fire protection sprinkler system, the wet pipe fire protection sprinkler system having a pipe network, a source of water for the pipe network, and at least one sprinkler head connected with the pipe network, the venting assembly comprising: a primary air vent adapted to be connected with the pipe network and vent gas but not water from the pipe network; a redundant air vent coupled to the primary air vent and adapted to vent gas but not water from the pipe network; and an airflow regulator adapted to control gas flow between the primary air vent and atmosphere; wherein the primary air vent is configured to discharge gas to the redundant air vent; wherein the redundant air vent is configured to discharge gas to the airflow regulator; wherein the airflow regulator is configured to discharge gas to atmosphere when a gas pressure in the pipe network is above a set point pressure level; and wherein the airflow regulator is configured to substantially prevent atmospheric air from entering the redundant air vent while the pipe network is drained of water.