SDP – Stationary Diaphragm Proportioner

The SDP-30, SDP-36, and SDP-60 are complete self-contained one-man operated foam proportioning units equipped with discharge hose and foam nozzle. The SDP units are designed to satisfy the need for dependable, highquality mini-proportioners. Each SDP unit is shipped completely assembled and includes as standard a National Foam JS-10 nozzle with ball shutoff , 50 feet (15.2 m) of 1¾” hose, and a 30, 36, or 60-gallon foam concentrate storage tank with fi ll funnel. The SDP units are equipped with suitable mounting/ support saddles for installation and operation in a fixed location.

  • COVID-19


    We are open for business, receiving orders, manufacturing products, and shipping to customers worldwide. However, in light of the circumstances ...

  • FDIC 2020 - Postponed

    FDIC 2020 – Postponed

    FDIC 2020 postponed due to COVID-19. National Foam fully supports the decision and will be exhibiting at FDIC 2021. ...

  • Engineering Seminar October 2020 - Postponed!

    Engineering Seminar October 2020 – Postponed!

    The next Foam Fire Protection Engineering Seminar, scheduled for October 20-22, 2020, is postponed indefinitely due to Corona Virus. Please contact ...