What about the anti freezing measures for outdoor fire hydrant?
Structure and application of outdoor fire hydrant: ground type outdoor hydrant is a fire extinguishing equipment for outdoor use. It is installed on the city water supply network for the fire brigade to extinguish the main water supply facilities. The utility model is suitable for places such as towns, streets, factories, warehouses, offices, schools, hospitals, etc. the utility model has the advantages of convenient use, high speed and high efficiency. Technical requirements comply with GB4452. Ground outdoor fire hydrant mainly comprises a plug body, valve, elbow, screw, valve, interface and other components, compact structure, beautiful shape, exposed part of the ground covered with red enamel, the underground part is coated with black asphalt paint, suitable for high temperature.
Ground type outdoor fire hydrant: Municipal direct supply, in general, is the construction of water company, the material is generally cast iron + galvanized.
Outdoor fire hydrant antifreeze measures: the ground type fire hydrant water supply pipe in the ground, as long as the entrance to install an underground valve (valve, well) can be used, usually closed the valve, and make it anhydrous. Open the valve when the fire breaks out.
