2020年10月29日 · In short, post indicator valves (PIVs) are sturdy, above-ground access and operator valves used for automatic sprinkler systems and wet standpipe systems whose main water supply valves are located underground.

2020年10月6日 · Post indicator valves (PIV) play an important role in many fire protection systems, opening and closing the water supply from outside the building. But in 2010, the National Fire Protection Association’s (NFPA’s) post indicator valve requirements changed.

Also known as PIV, indicator post, I post, IP, post indicator, or wall post, a post indicator valve is a valve assembly used for the purpose of underground piping for water supply to fire protection systems such as sprinklers, sprays, foams, deluges, etc.

2024年12月30日 · Inherently, post-indicator valves (PIVs) are subject to the same strict criteria, especially considering their critical role in fire protection systems. However, in 2010, the …

2024年11月29日 · A Post-Indicator Valve is a type of valve commonly used in modern-day fire protection and water supply systems. Also known as a Post-Indicator Hydrant (PIH) or Indicator Post Valve, its primary function is to control the flow of water from an underground water main to a fire hydrant, sprinkler system, or other fire suppression devices.

2019年7月24日 · Post-indicator valves have long been used to stop the flow of water into a building during developed stages of a fire. Exterior wall collapse of a burning building poses a threat to break water supply mains as well as create many openings to the water supply.

2024年12月30日 · The PIV helps prevent accidental shutdowns of fire protection systems by clearly indicating the status of the valve; Offers better control of the system by allowing for quick isolation of specific zones during emergencies, without disrupting (or engaging) the entire system.

2015年1月26日 · A postindicator valve (PIV) (photo 1) is commonly used as the valve operator for automatic fire sprinkler and standpipe systems, where the system main valve is located underground outside the...

The purpose of this standard is to provide minimum requirements and guidelines for the installation of Post Indicator Valves (PIV’s) and Fire Department Connections (FDC’s) for fire sprinkler systems.

2020年8月4日 · Indicator post, also known as post indicator valve (PIV), post indicator, controls the flow of water and is an important type of valve in fire protection systems. It is commonly used as the valve operator for automatic sprinklers and hydrants when the water system main.