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Valve seat

product nameHard seal seat ring
sizeDN25-500
MaterialASTM A182 F304, F316, F6A, F51, F53, F55; A564 630 (17-4PH); A105, A350, LF2; Monel, Inconel, Incolloy, Hastelloy and other casting grades
Surface treatmentElectroless nickel-phosphorus ENP, hard chromium plating, surface surfacing, surface nitriding tungsten carbide, chromium carbide, Stellite, Ni60, Ni55, Ni50, Ni45 and other cold and hot sprays
Roundness0.008-0.02


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