How do hydrants protect against frost?
Do a good job of antisepsis. Fire hydrant with epoxy zinc rich paints excellent anticorrosive property, strong adhesion, fast drying, high zinc content in the films, with cathodic protection, waterproof anti rust is excellent, the fire hydrant is more resistant to aging, improve the service life of the fire hydrant.
Empty the drain. When the fire hydrant valve closed, automatic drain valve in the hydrant body residual water hydrant body, avoid fire hydrant bolt body;
In the design of fire fighting pipe network, the depth of buried soil can be properly increased and ground temperature insulation (used for underground hydrant) is used.
