DAIHATSU DK20 Exhaust valve

DAIHATSU DK20 ENGINE VALVES & VALVE SEATS

DK20
Professional Yanmar DAIHATSU DK20 ENGINE VALVES manufacturer since 1990
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Description

DAIHATSU DK20 ENGINE VALVES

Material for valves:

40Cr,4Cr9Si2,4Cr10Si2Mo,21-4N,23-8N.

Si-Cr series high alloy valve steel:4Cr10Si2Mo

Ni-Cr-Mn-N series high alloy valve steel: 21-4N,23-8N,SNCrw, Nimonic 80A,Inconel 751

Ni-Cr-W series high alloy valve steel: （SNCrW)Nickel base heat resistant alloy steel:Nimonic 80A

Harden process for valve seat’s surfaceHigh Frequency quenchingSatellite WeldingRolling

Surface treatment:1.Chrome plating2.Nitriding

 
 Engine ModelDescription  Dimension  P/N
DK-20inlet valve spindle￠64×￠14×291.5×120°E205750050Z
DK-20inlet valve spindle￠64×￠14×291.5×120°E205750050Z,E205750030Z
DK-20exhaust valve spindle￠64×￠14×291.5×120°E205850040Z
DK-20inlet valve seat￠76×￠52×22.5×120°E205650060Z/90A
DK-20exhaust valve seat￠76×￠49×36.5×120°E205650090Z