Oil & GasPumps
Reciprocating pump (plunger pump) fluid end body (HP injection)
⚠ NOTE: Very high pressure fluid ends (>700 bar) are typically FORGED not cast. Cast fluid ends used for moderate pressure chemical injection / transfer. API 674 / ISO 13710. Valve and seat bores: hardened or inlay.
Specifications
Material
Cast Steel A216 WCB; Duplex A890 Gr4A; Alloy Steel 4140 (some HP designs – usually forgings at very HP)
Grades
WCB
Material Class
DuplexCast SteelAlloy Steel
Applicable Standards
API 674ISO 13710
Common Processes
Resin sand / furan (moderate HP cast body); heat treat (CS / alloy steel)
NDT & Inspection
RT (100% critical sections); UT; MT; hydrostatic (2× rated); hardness; PMI
Typical Specs & Notes
⚠ NOTE: Very high pressure fluid ends (>700 bar) are typically FORGED not cast. Cast fluid ends used for moderate pressure chemical injection / transfer. API 674 / ISO 13710. Valve and seat bores: hardened or inlay.
⚠ Caveats
⚠ NOTE: Very high pressure fluid ends (>700 bar) are typically FORGED not cast.