Hydrant available fire engines absorbent and can be directly connected to the water with a water fire-fighting, fire water supply equipment. Hydrant their device locations can be divided into two types of outdoor and indoor. Outdoor fire hydrant can be divided into two kinds of above and below ground. 1, the configuration of the indoor fire hydrant should ensure that enrich the water column to the highest buildings of two adjacent fire hydrant, the most distant encounters. Indoor fire hydrant generally located near the plant, platform Treasury exports inside stairwell, corridors and walkways obvious easy access to the location, height from the ground should l.2 m 2 outdoor hydrants should be set along the road should not be less than 0.5 meters away from the roadside, and shall not be greater than 2 meters. Set location should be easy to fire engines and water absorption. The number of outdoor fire hydrant hydrant protection radius shall determine and outdoor fire water, any device should ensure sufficient fire water, buildings on fire. The low-pressure pipe network outdoor fire hydrant protection should not be more than 120 m radius, each fire hydrant out of water at 15 liters / seconds. Under normal circumstances, the outdoor unit area, tank farm fire hydrant spacing should not be more than 60 meters. The open-air production unit area of ??the fire hydrant should be set in production around the device, but the production device width is greater than 120 meters, it is desirable in the device along the side of the road, additional fire hydrant for local use of fire hydrants to extinguish the initial fire. Flammable, combustible liquid tank farm and LPG tank farm fire hydrant should be located outside of the fire protection embankment. [Shenzhen, fire extinguishers, fire extinguisher maintenance, Shenzhen, fire equipment, fire signs, fire engineering in Shenzhen, Shenzhen transport equipment, fire safety, exit lights, Shenzhen hydrant http://www.szytxffm.net] best fire extinguisher maintenance company - Shenzhen Yuantong fire valves