I. Main Performance Features

1. Anti-Freeze: The fire hydrant is equipped with an automatic drainage device. This device can automatically seal and drain water based on the water pressure inside the hydrant. When the hydrant is opened, the drainage valve automatically closes if the water pressure is no less than 0.1MPa; after the hydrant is closed, the drainage device automatically opens to discharge the remaining water.

2. Collision Prevention: The fire hydrant is equipped with collision-resistant components structurally, and also features a spring-loaded closed drain port for positive pressure sealing. Upon impact, the hydrant's valve head closes immediately under pipeline pressure, ensuring no leakage within the pipeline and not affecting the normal operation of other hydrants on the same pipeline. If the collision-resistant components break, the hydrant body and valve body remain undamaged. The hydrant can be repaired under pressure after being broken by impact.

III. Main Structural Parameters

Section 4: Outdoor Ground Fire Hydrant Installation Diagram

Five, Selection

1. Based on the design requirements and specifications of fire protection engineering projects, determine the depth of frozen soil according to the different usage environments and regions. According to the fire hydrant installation diagram, determine the total height dimensions of the above-ground fire hydrants.

2. When selecting the fire hydrant design, it is crucial to fully consider the location and height of the groundwater. It must be ensured that the position of the drain valve during installation is above the groundwater level by at least 100mm; otherwise, the fire hydrant may fail to operate normally. !!!

3. Install using either branch pipe or trunk pipe method as needed, with the connection dimensions remaining unchanged.