Fire hydrant's installation and design

China Fire Hydrant is installed on fire pipes online, mainly for fire extinguishing use. Points the ground and underground two kinds. The ground fire hydrant suitable for air temperature is higher place, its water supply interface into higher than vertical cylinder on the road. Underground fire hydrant and underground fire hydrant structure is similar mainly by the elbow pipe, valve body, seat and disc, drain valve, flange takeover, stem, ontology, interface and cap cover etc. Parts.

Underground fire hydrant specifications
Catalog number: SA100/65 to 1.6, and SA65/65 to 1.6
Nominal diameter (mm) : DN100
Nominal pressure (MPa) : 1.6
Strength test pressure (MPa) : 2.4
Open height: 50
Applicable medium: clear quality water, foam mixture.
Outdoor fire hydrant usage
Due to the underground China Fire Hydrants covered with thick shaft cover and open by two general with iron special tools remind Wells flats exposed underground fire hydrant, reoccupy after extended deep into the switch wrench unscrew underground, fire hose valve and connect, water diversion to extinguish fire.

Installation design
A, underground type hydrant installation design. Underground Hydrant Valve design installation is located in underground Wells indoor, so fire hydrant outlet height and outlet water is convenient for plane position from the fire department, is the key to bring water from consideration, pick up the outlet should be controlled in ground height about 30cm, consider maintenance, use convenient outlet should be located adjacent to the edge plane. If fire hydrant Wells deep, fire hydrant connection too long, vertical pipe should be within the well to stand pipe, can ensure that use the fixed safety.
Second, for ultra-high buildings around the design of outdoor China Fire Coupling near, should consider the hydrant and tall building pump connectors.it spacing to once tall building fire, fire department can in the shortest distance with water add pump connect within.
Third, due to the influence of factors by planning, often have will control valves Wells and fire function 2 for one, used to say well, seems well set position and saving planning dual function reached a well, but also bring the regulatory headaches. First, once the fire hydrant need maintenance will need to closing valves and affect the normal water downstream. Similarly maintenance when closing valves downstream piping and influence of normal use, the registry fire-hydrant normal usage will necessarily reduce fire hydrant. This moment "for" military use the management is very adverse fire-hydrant. Second, because the Wells, and with the double function with fire manhole cover or whether manhole covers, bring management mainly China Valve covers the confusion, so use should as far as possible to avoid the design of the well.