What is the flow rate for a 1 ¾" hose size with a preconnect of 200'?

The correct flow rate for a 1 ¾" hose size with a preconnect of 200 feet is typically established based on standard firefighting practices and hose management guidelines. For a preconnected 1 ¾" hose, a nozzle pressure of 100 psi is a common reference point. This pressure provides an effective balance for achieving a strong stream of water while also maintaining manageable flow rates for engine operators.

Hoses of this size are often used for fire suppression in residential structures, where the pressure needs to be sufficient to create enough water flow to combat typical fire scenarios effectively. The 100 psi designation ensures that firefighters can achieve an optimal reach and volume of water delivery when they are engaging with fire.

Understanding the importance of maintaining an appropriate nozzle pressure is crucial, as it directly influences the stream's reach, penetration, and effectiveness in suppressing flames. In essence, this standard aligns with the established practices for delivering water through 1 ¾” hoses in firefighting operations.