What is the minimum psi a dry pipe valve is set to trip?

In the context of dry pipe systems, the minimum pressure at which a dry pipe valve will trip is crucial for ensuring that the system activates reliably in the event of a fire. A dry pipe valve is designed to prevent water from entering the pipes until it is needed, which occurs once the system is activated due to a fire detection trigger.

Setting the trip point at 10 psi allows the valve to react at a lower threshold, ensuring that the system can respond quickly without requiring a high pressure to initiate the flow of water. This is particularly important in protecting areas where the presence of water is not allowed until a fire is detected, minimizing the risk of accidental discharge or damage.

Higher psi settings would also delay the activation of the sprinklers, which may be counterproductive in an emergency where rapid response is crucial for fire control and safety. Therefore, the trip point of 10 psi balances the need for system integrity with timely activation.