Centrifugal Pump Materials
Different Materials pose separate problems. The typical process fluids found in the oilfield and the pump materials that are typically chosen are contained on this page. Note: checking with a materials engineer for compatibility prior to specification should always be completed.
Brine
Dilute Brine
- Fluid End
- Casing - Ductile Iron
- Impeller - 316 Stainless Steel
- Shaft / Sleeve - 316 Stainless Steel
- Seal
- Alloy 20 Metal Parts, Carbon vs Tungsten-Carbide with Viton O-Rings
Concentrated
- Fluid End
- Casing - Stainless Steel Alloy 20 or Stainless Steel CD4M
- Impeller - Stainless Steel Alloy 20 or Stainless Steel CD4M
- Shaft / Sleeve - Stainless Steel Alloy 20
- Seal
- Alloy 20 Metal Parts, Carbon vs Tungsten-Carbide with Viton O-Rings
Hydrogen Sulfide
Dilute (>15%)
- Fluid End
- Casing - Ductile Iron
- Impeller - 316 Stainless Steel
- Shaft / Sleeve - 316 Stainless Steel
- Seal
- Alloy 20 Metal Parts, Carbon vs Ceramic or Silicon-Carbide with Viton O-Rings
15%-93% Hydrogen Sulfide
- Fluid End
- Casing - Alloy 20
- Impeller - Alloy 20
- Shaft / Sleeve - 316 Stainless Steel
- Seal
- Hastelloy C Metal Parts, Carbon vs Ceramic or Silicon Carbide, Viton O-rings
Concentrated (93-98%)
- Fluid End
- Casing - Ductile Iron
- Impeller - Ductile Iron
- Shaft / Sleeve - Alloy 20
- Seal
- Alloy 20 Metal Parts, Carbon vs Ceramic or Silicon-Carbide with Viton O-Rings
Caustic
- Fluid End
- Casing - Ductile Iron (acceptable) / 316 Stainles Steel (preferred)
- Impeller - 316 Stainless Steel
- Shaft / Sleeve - 316 Stainless Steel
- Seal
- 316 Stainless Steel Metal Parts, Tungsten-Carbide vs Silicon-Carbide, EPDM O-Rings. Water quench over outside of seal faces
Hydrochloric Acid
- Fluid End
- Casing - Non-metallic ONLY
- Impeller - Non-metallic
- Shaft / Sleeve - Ceramic
- Seal
- Any High Quality Double Seal with Viton O-Rings and Carbon vs Ceramic Seal faces. Water to lubricate seal faces.
Another option would be a Magnetic Drive pump
Tags: Pump