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Oil & Gas CNC Machined Parts

Precision machining for upstream, midstream and downstream applications. Pump impellers, valve bodies, instrument fittings and replacement parts from sample — in 316L stainless, 4140 alloy steel and duplex stainless.

316L, duplex, 4140 steelPump impellers & valve bodiesMaterial certs (3.1) on requestMOQ 1 piece
// Reference Parts

Workshop & product library photos

These images show the type of work EKINSUN can quote from drawings, samples, photos, rough sketches, or existing parts.

Hydraulic Valve Body — Oil & Gas Grade

Precision-machined valve body for hydraulic and pneumatic control valves in oil and gas production equipment. Alloy steel or stainless.

SteelHydraulicValve

Pump Impeller — 5-Axis Steel

5-axis milled steel pump impeller for centrifugal and turbine pumps. Produced from tool steel, alloy steel or duplex stainless on request.

Alloy SteelImpeller5-Axis

Turbine Impeller — Top View

Precision machined turbine impeller: blade profile, bore and hub machined to close tolerance. Common material: 316L, duplex stainless or 4140 steel.

SteelImpellerPump

Stainless Threaded Pipe Coupling Batch

Batch of 316L stainless threaded pipe couplings to NPT or BSP standard. Used in process piping, instrumentation and control lines.

316L StainlessCouplingThreaded

Pump Shaft — Deep Hole Precision

Deep-hole drilled and precision-ground pump shafts for centrifugal and positive displacement pumps in upstream and downstream oil and gas.

Alloy SteelShaftPump

Keyway Drive Shafts — Batch Production

Precision keyway shafts for pump and compressor drives. Machined from 4140 or 17-4 PH stainless; heat treatment on request.

SteelKeywayShaft

BSP / NPT / Metric Thread Adapters

Custom thread adapters for connecting metric, BSP and NPT fittings in process pipework. 316L stainless as standard; alloy steel on request.

StainlessAdaptersThread

Instrument & Sensor Fittings — Batch

Precision sensor and instrument fittings for pressure, temperature and flow instrumentation in oil and gas process lines.

316L StainlessFittingInstrument

Quality Inspection — Oil & Gas Parts

All EKINSUN parts are subject to dimensional inspection and traceability. Material certs (3.1 certificates) available on request for critical applications.

QualityInspectionISO 9001

CNC Machined Parts for Oil & Gas Applications

Oil and gas production, processing and distribution impose strict requirements: high pressures, corrosive media (H₂S, CO₂, chlorides), cyclic mechanical loading, high temperatures and remote locations where field failures are expensive. CNC machined parts in this sector must be made from the right material, machined to tight tolerances, and traceable to material certification standards. EKINSUN manufactures to these requirements across upstream, midstream and downstream applications.

Materials for Oil & Gas Parts

  • 316L / 316 Stainless Steel — the baseline material for corrosion-resistant instrumentation fittings, sensor housings and process connections. PREN ~24 in seawater-exposed environments — acceptable for most onshore/mild offshore service.
  • Duplex 2205 / Super Duplex 2507 — for high-chloride environments (subsea, high-salinity produced water); PREN >35 for 2205, >40 for 2507. We machine both grades on request.
  • 4140 / 4340 Alloy Steel — pump shafts, valve bodies, drill collars and downhole tooling where high yield strength and toughness are required; heat-treated and surface-treated (nickel, chrome, phosphate) as needed.
  • Inconel 625 / 718 — for high-temperature, high-corrosion applications (flare tips, wellhead parts, downhole tools in HPHT wells); expensive to machine but chemically inert to virtually all produced fluids.
  • PTFE / PEEK — for valve seats, seals and insulators where chemical resistance is paramount and metal-to-metal contact is to be avoided.

Common Oil & Gas CNC Part Requests

  • Pump impellers and wear rings — centrifugal and progressing cavity pumps in 316L, duplex or 4140
  • Valve bodies and spools — gate, globe, ball valve internals in alloy steel and stainless
  • Instrumentation and sensor fittings — NPT and BSP instrument connections, thermowell bodies, orifice plate flanges
  • Thread adapters and pipe reducers — cross-standard adapters connecting legacy imperial and metric systems on existing plant
  • Replacement parts from sample — obsolete pump components, valve internals and fittings reproduced from worn originals when OEM drawings are unavailable
  • Downhole tooling components — mandrels, centralizers, packers and fishing tool parts in 4140 or 4340

Material traceability for oil & gas. For critical applications we supply EN 10204 3.1 mill test certificates, heat number traceability and dimensional inspection reports. Specify your certification requirement in the enquiry and we will confirm scope.

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