Series 434, Steel Body, Diaphragm Operated Two-Way

The INVALCO Series 434 Valve can be used in any application that requires a steel bodied flanged valve. This could include high or low pressure separators, treaters, dehydrators, or any other pressure vessel. The Series 434 is perfect for use on offshore vessels.


Body MaterialSteel WCB
End Connections2″ flanges
Body CoverCarbon steel, union
Diaphragm Operator Carbon steel, 65 sq. in.
Nylon reinforced Buna N diaphragm,
Maximum recommended operating pressure 70 psi
Maximum containment pressure 100 psi
PackingNon-lubricated Buna N
Maximum Working PressureLimited by flange
Temperature Limits-20°F to 250°F
Stem Material303 Stainless Steel
Plug and Seat MaterialSee download


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