Wet Fire Sprinkler System Diagram

Connection used by the fire department to pump water into the fire sprinkler or standpipe system to supplement the building s water supply.

Wet fire sprinkler system diagram. There are four main types of fire sprinkler system. A wet system as defined in nfpa 13 is a sprinkler system employing automatic sprinklers attached to a piping system containing water and connected to a water supply so that water discharges immediately from sprinklers opened by the heat from a fire2. A combination manual wet standpipe and sprinkler system may have sufficient pressure to supply sprinklers. Manual wet systems keep water in the system at all times but are not backed up by a pump.

The pre action valve will only activate when an independent fire detection system detects a fire. Now that water is on deck one or more individual sprinkler heads need to release to engage and discharge water. A wet system is used in areas that can be maintained above 40 f 4 c. Wet pipe sprinkler presentation.

System description wet systems are the simplest and most common type of sprinkler system installation with relatively few components figures 1 and 2. Although historically only used in factories and large commercial buildings systems for homes and small buildings are now available at a cost effective price. Following the work the system is pressure tested and restored. A fire sprinkler system is an active fire protection method consisting of a water supply system providing adequate pressure and flowrate to a water distribution piping system onto which fire sprinklers are connected.

Wet pipe sprinkler system october 15 2008 page 3 i. In a wet pipe fire sprinkler system the most common type in residential buildings cold water is stored under pressure in the pipes and is released immediately by sprinkler heads when the predetermined heat level is reached. This is because no equipment other than the sprinkler heads are required to operate. Wet fire sprinkler systems are by far the most common the simplest and the most affordable systems to install.

Why choose a pre. Ease of modification wet pipe fire sprinkler systems are advantageous since modifications involve shutting down the water supply draining pipes and making alterations. Wet systems are the most common and reliable types of sprinkler systems. Additional work for detection and special control equipment is avoided which again saves time and expense.

Otherwise known as an fdc or siamese connection since there are two inlets on the connection this connection is located on the exterior of the building. 8 fire department connection. The system provides fixed fire protection using piping filled with pressurized water supplied from a dependable source at all times.