• ASSE 1012
  • Revision:2009 Edition, March 11, 2009
  • Published Date:March 2009
  • Status:Active, Most Current
  • Document Language:English
  • Published By:American Society of Sanitary Engineering (ASSE)
  • Page Count:24
  • ANSI Approved:Yes
  • DoD Adopted:Yes

  • Description

    The devices covered by this standard are those which havefunctional capabilities for preventing both back-siphonage and backpressure and which can operate under continuous or intermittentpressure conditions. These devices have two (2) independentlyoperating check valves separated by an intermediate chamber with ameans for automatically venting it to the atmosphere and can beinstalled in the horizontal, vertical up or vertical downorientations. The check valves are force loaded to a normallyclosed position and the venting means is force loaded to a normallyopen position.

    Size Range

    Inlet and outlet pipe sizes are 1/4 to 3/4 NPS (8 mm to 20 mm)inclusive.

    Minimum Pressure Rating

    The device shall be designed and constructed for a workingpressure of at least 150.0 psi (1034.2 kPa).

    Temperature Range

    The device shall be designed and constructed for normal flowtemperatures of 40.0 °F to 210.0 °F (4.4 °C to 98.9 °C) and anemergency back pressure temperature of 250.0 °F (121.1 °C).

    Flow Rate

    Manufacturer's advertised maximum flow rate.

    ASSE 1012

    • Product Code: ASSE
    • Availability: In Stock
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