Falling liquid levels and condensing steam can cause a vacuum that can damage a tank. The 200 Vacuum Breaker opens gradually to admit outside air to relieve the vacuum in the tank. The unit must be installed vertically with its mounting connection downward.
FEATURES
Iron, steel, or stainless steel body
Iron, steel, or stainless steel seat
Non-asbestos or TFE disc
Size 2 iron with NPT or 125FLG connections
2 steel and stainless steel with 150 or 300FLG
4 through 12 iron with 125FLG
4 through 12 steel and stainless steel with 150 or 300FLG
Air relief capacities to 14,280 CFM