Swing Y Check Valve, 509Y Series, 1 in, FNPT x FNPT, Bronze Body MPN:509Y 1"

• The MILWAUKEE VALVE 509Y is a 1 in. swing Y check valve with a bronze body and FNPT x FNPT threaded connections. It uses a swing check mechanism in a Y-style body for use in one-way-flow piping applications where a swing check valve is specified. This valve features a full-flow design, a 0.5 psi cracking pressure, and can be mounted in horizontal or vertical positions.

  Key Features:

  • Valve type: Swing Y check valve
  • Body material: Bronze
  • cast bronze body
  • Check mechanism material: Brass
  • Connection type: 1 in. FNPT x FNPT with female threaded connections on both ends
  • Pressure ratings: 200 psi WOG, 125 psi SWP, 125 psi WSP, and 200 psi maximum operating pressure
  • Temperature range: -20 degrees F to 425 degrees F
  • Flow capacity: 31 gpm
  • Cv of 22
  • Seat and seal material: Bronze
  • Mounting orientation: Horizontal or vertical
  • Overall length: 3-11/16 in.
  • Standards: ASTM B16, ASTM B505, ASTM B584, MSS SP-80

Additional Information