Series 415 Ductile Body, Series 416 – Steel Body, Diaphragm Operated, Two-Way

The Series 415 is ideal for low-pressure separators or any application that needs to dump large volumes or fluid quickly. The Series 416 is ideal for high pressure separators or any application that requires moving large volumes of fluid quickly.


Body CoverSteel
End Connections2″ FNPT and 2″ grooved
Diaphragm CasesSteel
Diaphragm 65 sq. in. reinforced Buna N
Maximum recommended operating pressure 70 psi
Maximum containment pressure 100 psi
Packing1/2 x 1 inch Non-Lubricated Buna N
Stem, Seat, Plug303 S.S., Fluoroelastomer Facing
Body MaterialSee Ordering Information Chart
Maximum Working PressureSee Chart
Temperature Limits-20°F to 250°F
Valve Travel1-1/8 inches
Spring Rate750 lbs per inch
Spring Pre-load(3-15 psi Bench Range) Norm. 210 lbs. Maximum 750 lbs.
Flow DirectionUnder the seat for precise modulation.
Over the seat for shut-in service, on-off service, noncritical modulation.
Flow CharacteristicModified equal percentage, see graph.


More Information

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