5 Year Internal Inspection

Every owner of a sprinkler system wants to avoid costly and dangerous damage to their sprinkler system. Sprinkler pipes are a lot like a car, if it’s not maintained it can result in expensive and unwanted repairs. At W&M Sprinkler we recommended that all of our customers perform 5 Year Internal Obstruction Investigations to the… Read more »

FDNY Notice of Violation (NOV)

A Notice of Violation is a form issued at the end of a fire inspection to notify the respondent if one or more of the city’s administrative codes or Fire Department rules have been found to be in violation. FDNY inspections are usually scheduled annually, but an inspection may be performed at any time if… Read more »

What is a Fire Pump?

A fire pump is any kind of pump that is part of a fire protection system’s water supply. It is important to know that a fire pump does not create water, it takes water that is given to it from a water supply and increases the pressure (energy) of the water. A fire pump can… Read more »

What is a Standpipe System?

Standpipe systems are a series of pipe which connect a water supply to hose connections, basically an extension of the fire hydrant system. They are designed to provide a pre-piped water system for building occupants or the fire department. Standpipe systems are designed to provide fire protection water for hose lines in strategically placed locations… Read more »

What is a Dry Sprinkler System?

Unlike a wet system that is filled with water, a dry sprinkler system is filled with pressurized air. When heat opens a sprinkler head, the loss of air pressure in the piping will cause a special dry valve to open, or trip. Piping will then fill with water and out of any open sprinkler head…. Read more »

What is a Backflow Preventer?

Backflow prevention devices are used to protect the public water supply from contamination or pollution due to backflow, caused by a change backflow prevention devices are an important component of the New York City Department of Environmental Protection’s drinking water protection program and are legally mandated under the New York State Sanitary Code and the… Read more »