MILWAUKEE VALVE 509Y 1" Swing Y Check Valve, 509Y Series, 1 in, FNPT x FNPT,

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

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