Schematic diagram of gravity circulating heating system. freezing. ... A cold- or hot-water-circulating pipe, which would cause a loss of considerable water if broken outside a tank, should have an ... by (1) a solenoid- or electric-motor- operated valve in the steam supply pipe provided the electric supply is reliable, or by (21 aanbsp;...
|Title||:||Handbook of Industrial Loss Prevention|
|Author||:||Associated Factory Mutual Fire Insurance Companies. Factory Mutual Engineering Division|