Series 455, Steel Body, Diaphragm Operated, Two-Way, Single Port

INVALCO’s Series 455 Valve can be used in any low to moderate pressure application that requires discharge of large amounts of fluid quickly. This could be large treaters, separators, free water knockouts, etc.


Body MaterialDuctile Iron A-395
Body CoverDuctile Iron A-395
End Connections2″, 3″, 4″ and 6″ 150# Flanges
Diaphragm Operator Steel – see chart for topworks size
Nylon reinforced Buna N
Maximum recommended operating pressure 70 psi
Maximum containment pressure 100 psi
PackingNon-Lubricated Buna N
Maximum Working Pressure275 psi @ -20°F to +150°F
150 psi @ +250°F
Temperature Limits-20°F to 250°F
Stem Material303 stainless steel
Seat Material304 stainless steel seat/cage
Plug*Replaceable Buna-N

Note: * = See valve trim section for optional trim.


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