Robust Hastelloy Pumps for Metal Refining Applications

Hastelloy Pumps for Metal Refining

In the extreme chemical environments of metal refining, standard pumps fail catastrophically within months – sometimes weeks. The Hastelloy pump is not merely a corrosion-resistant option; it is the definitive solution engineered to handle boiling sulfuric acid, concentrated hydrochloric pickling baths, and aggressive electrolyte solutions that dissolve ordinary metals. At HIS Pumps and Systems, we supply precision-engineered Hastelloy pumps built from nickel-molybdenum-chromium superalloys that deliver unrivaled resistance to pitting, crevice corrosion, and stress-corrosion cracking – the prime failure modes that plague stainless steel and duplex alloys in hydrometallurgical and pyrometallurgical circuits.

Hastelloy is a family of alloys, each designed to dominate specific corrosive regimes. Grades like C-276 (UNS N10276) and C-22 (UNS N06022) offer exceptional performance in oxidizing and reducing acids, while the B-3 (UNS N10675) family withstands pure hydrochloric acid at all concentrations and temperatures up to boiling. In metal refining, where process fluids frequently contain chlorides, sulfates, and fluorides at elevated temperatures, a Hastelloy pump transforms maintenance nightmares into reliable continuous operation. The strategic value lies not just in surviving the chemistry, but in unlocking lower total cost of ownership (TCO) – field audits across metal processing plants have shown that a properly specified Hastelloy gear pump or mag-drive pump can save over $87,000 per unit over its service life compared to repeated replacements of standard alloys.

Our range covers centrifugal, gear, and magnetic drive configurations, fully compliant with API 685 and ISO 5199 standards. Whether you are pumping high-temperature molten salt fluxes, recirculating copper electrowinning electrolyte laden with sulfuric acid mist, or metering precise additives in precious metals refining, we provide a Hastelloy pump solution that matches your exact process conditions. Read on to discover how the right metallurgical choice can eliminate unscheduled downtime and reduce lifecycle costs while ensuring the safety of your workforce and the integrity of your product.

Why Metal Refining Demands Hastelloy Pumps

Metal refining processes are designed to separate pure metals from ores or scrap through aggressive chemical and thermal treatment. The fluids handled – from hot concentrated sulfuric acid in copper SX-EW plants to mixed nitric/hydrofluoric acid in stainless steel pickling lines – exhibit a combination of low pH, high redox potential, and often elevated chloride content. Under these conditions, the passive oxide layer on standard 316L stainless steel breaks down in hours, leading to rapid wall thinning, perforation, and catastrophic leakage. Hastelloy pumps owe their dominance to the synergistic effect of molybdenum, chromium, and nickel, which creates an incredibly stable passive film that repels localized attack even in the presence of ferric ions and dissolved oxygen that accelerate corrosion in lesser alloys.

The failure risk is not merely financial. A pump casing breach can release toxic acid clouds, endanger personnel, and contaminate production streams worth millions. In electrowinning tankhouses, electrolyte leakage corrodes structural steel and causes ground integrity issues. Field data from Gulf Coast refineries reveals that 68% of sites that switched to Hastelloy C-276 pumps did so after experiencing at least two catastrophic failures with duplex stainless alternatives, with the average repair cost plus lost production exceeding $142K per incident. The specialized metallurgy also handles temperature fluctuations without sensitization; many C-type Hastelloy grades maintain their mechanical properties and corrosion resistance up to 1200°F (650°C), making them suitable for pump services adjacent to furnaces or melt baths in secondary aluminum and zinc refining.

Beyond survival, a properly engineered Hastelloy pump enables process intensification. In hydrometallurgical lithium extraction or rare earth separation, the ability to pump hot, concentrated hydrochloric acid and organic solvents reliably opens the door to higher yield and faster leaching kinetics. The reduction in maintenance frequency also aligns with modern EHS goals: fewer seal failures mean less fugitive emissions and lower risk of exposure to carcinogenic hexavalent chromium compounds often present in metal finishing effluents. The initial premium over common stainless vanishes when measured against the extended mean time between repair (MTBR) and the virtual elimination of unscheduled production stops.

Critical Applications in Metal Refining

• Copper Electrowinning: Hastelloy pumps recirculate hot, highly corrosive sulfuric acid electrolyte (150-200 g/L H₂SO₄) at temperatures up to 60°C. The alloy's resistance to both the acid and entrained oxygen prevents premature failure of pump casings and impellers, ensuring continuous production in SX-EW circuits.
• Zinc Hydrometallurgy: Pumps handling acidic zinc sulfate solutions with fluoride and chloride impurities benefit from C-276 or C-22 wetted parts. The Hastelloy pump withstands the aggressive conditions in stripping cells and advance electrolyte transfer, eliminating costly liner replacements.
• Nickel & Cobalt Pressure Leaching: High-pressure acid leach (HPAL) laterite processing utilizes sulfuric acid at temperatures exceeding 250°C. Hastelloy mag-drive pumps provide the required hermetic containment and corrosion resistance for the autoclave discharge and slurry transfer loops.
• Precious Metals Refining: Gold and platinum group metals (PGMs) dissolution in aqua regia (HCl/HNO₃) or chlorine gas environments demands pumps that can handle strong oxidizing acids. Hastelloy B-3 excels in pure hydrochloric acid media, while C-276 tackles mixed acid streams in solvent extraction and stripping stages.
• Stainless Steel Pickling Lines: Mixed acid (HNO₃/HF) used to descale and passivate stainless steel strip attacks all common metals.
• Secondary Aluminum Recycling: Fluxing salts containing chlorides and fluorides are pumped to remove impurities from molten scrap. A Hastelloy pump resists the corrosive salt environment and thermal shock, preventing frequent failures seen with cast iron or stainless steel alternatives in dross processing.
• Lithium and Battery Metals Extraction: The leaching of spodumene or recycling of black mass uses sulfuric acid or a sulfate-chloride mix at high temperatures. Hastelloy C-type pumps deliver long-term reliability in these emerging refining processes, ensuring minimal contamination of the battery-grade metal salts.
• Titanium and Zirconium Refining: The Kroll process and solvent extraction loops involve hot chloride salts and hydrochloric acid. Hastelloy pumps with Hastelloy B or C alloys handle these severe conditions, safeguarding the purity of the final sponge metal.
• Plating and Anodizing Effluent: Waste acid recovery systems concentrate chrome, nickel, and copper plating baths. Hastelloy pumps transfer these aggressive, metal-laden acids to evaporators or ion-exchange units without fear of premature attack, enabling closed-loop recycling and reducing hazardous waste.

The versatility of Hastelloy pumps spans across both primary extraction and secondary recycling. In every case, the alloy's unique ability to form a tenacious, self-healing passive film under strongly oxidizing conditions makes it the material of choice. By eliminating the root cause of corrosion fatigue and erosion-corrosion, these pumps enable refineries to push throughput and recoveries to previously unattainable levels, all while complying with stringent environmental discharge limits.

Get Your Custom Hastelloy Pump Quote

Ready to eliminate corrosion-related downtime in your metal refining operation? Our application engineers will help you select the optimal Hastelloy alloy and pump configuration for your specific process fluid, temperature, and pressure requirements. Click below to send us your details on WhatsApp – we respond within hours with a budget quote and lead time.

Key Features of Our Hastelloy Refining Pumps

Each Hastelloy pump we supply is not just a material upgrade; it is a complete system engineered for reliability, safety, and ease of maintenance. From the wetted components to the mechanical seal and drive arrangement, every detail is scrutinized to ensure years of uninterrupted service in metal refining's most punishing circuits.

• Solid Hastelloy Casing and Impeller: The entire pressure boundary and hydraulic parts are investment cast in Hastelloy C-276, C-22, or B-3 per your process. This ensures uniform corrosion resistance without the risk of galvanic couples or liner debonding that plague coated pumps.
• Advanced Mechanical Seal Technology: Dual pressurized or unpressurized cartridge seals with Hastelloy metal parts and compatible secondary seals (FFKM, PTFE) isolate the process fluid. API Plan 53B/54 barrier systems provide an inert buffer, ensuring zero process leakage even during pressure spikes.
• Magnetic Drive Option: For zero-emission applications, sealless mag-drive pumps use a Hastelloy containment shell and inner rotor. This eliminates mechanical seals entirely, perfect for acidic chloride streams where seal leakage is simply unacceptable.
• High-Efficiency Enclosed Impeller: Precision-machined impellers with back pump-out vanes reduce axial thrust and prevent solids accumulation, crucial when pumping electrolyte containing anode slimes or fine precipitates. Efficiencies up to 78% reduce energy costs in continuous recirculation loops.
• Rigid Shaft and Bearing Design: Oversized shafts in alloy 20 or Hastelloy, supported by angular contact or sleeve bearings, handle process upsets without deflection. This prolongs seal life and prevents wear ring contact, even during cavitation events common in crystallizer circuits.
• Full Traceability and Certification: Every heat of Hastelloy is positively identified with PMI (Positive Material Identification) and comes with EN 10204 3.1 material certificates. Weld repairs are performed with matching filler and subjected to dye penetrant and radiographic inspection.
• Low NPSHr Hydraulics: First-stage impellers designed with large eye diameters and special inducer options reduce the Net Positive Suction Head required by 30-40%. This prevents cavitation damage when pumping near boiling acids or in elevated suction lift scenarios.
• Interchangeable Parts Across Alloys: Our modular design philosophy means a pump frame can be upgraded from C-276 to C-22 wetted ends without changing the power end or baseplate. This preserves your capital investment if process conditions evolve toward more aggressive fluids.

These features are not theoretical; they are proven in over 150 metal refining installations globally. From a 15 kW transfer pump in a small gold refinery to a 200 kW electrolyte recirculation unit in a world-scale copper tankhouse, our Hastelloy pumps consistently deliver MTBR figures exceeding 60 months – far surpassing the industry average of 12-18 months for duplex pumps in similar services.

Technical Specifications and Performance Data

Our Hastelloy pumps are configured to meet the exact hydraulic and corrosion requirements of your metal refining process. Below are the standard specification ranges; custom engineered solutions are available for extreme temperatures, pressures, and flow demands. All pumps are hydraulically tested to ISO 9906 Grade 1 standards and comply with API 685 for seal-less designs.

Hydraulic Performance Envelope

• Flow Range: From 0.5 m³/hr for precise metering and dosing pumps up to 800 m³/hr for main process recirculation. Our multi-stage configurations bridge the gap between low-flow pilot plants and full-scale production lines, ensuring the same Hastelloy metallurgy across all throughputs.
• Differential Head: Up to 250 meters per stage. For tankhouse circulation loops requiring high flow but moderate head, we optimize impeller trim and speed to intersect the Best Efficiency Point (BEP) directly at your duty condition, minimizing power draw and wear.
• Temperature Rating: Standard designs operate from -40°C to 300°C. High-temperature variants with Hastelloy X or C-2000 alloys and external cooling jackets extend the upper limit to 540°C, suitable for molten salt transfer and furnace cooling circuits in pyrometallurgy.
• Maximum Working Pressure: PN16 to PN40 (232 to 580 psi) standard, with Class 300 and Class 600 flange ratings available. Each casing is hydrotested at 1.5 times the design pressure per API 685 requirements before shipment.
• Viscosity Handling: Capable of pumping fluids up to 500 cP. When handling concentrated metal sulfate solutions or crystal-laden slurries from evaporators, we apply viscosity correction factors per Hydraulic Institute standards to maintain accurate performance predictions.

Metallurgical Options and Chemistry

• Hastelloy C-276 (UNS N10276): The workhorse alloy containing 15.5% Cr, 16% Mo, and 5% Fe. Exceptional resistance to sulfuric, phosphoric, and mixed acids, plus outstanding pitting resistance in chloride environments. Ideal for copper SX-EW and general acid handling across the refinery.
• Hastelloy C-22 (UNS N06022): With higher chromium (20-22.5%) and a balanced Mo/W content, C-22 provides superior resistance to highly oxidizing media such as hot nitric/hydrofluoric pickling acids and ferric chloride environments found in printed circuit board and electronics metal recovery.
• Hastelloy B-3 (UNS N10675): This Ni-Mo alloy (28.5% Mo) is virtually immune to pure hydrochloric acid at all concentrations up to boiling. It is the premier choice for HCl regeneration plants, titanium sponge production, and any process where reducing acids dominate without significant oxidizing impurities.
• Hastelloy C-2000 (UNS N06200): A versatile alloy bridging the gap between C-276 and B-3, with 23% Mo and 16% Cr. It offers excellent performance in both oxidizing and reducing environments simultaneously, making it ideal for mixed-feed streams where acid composition fluctuates due to upstream process variations.
• Hastelloy G-35 (UNS N06035): Engineered specifically for "wet process" phosphoric acid production, this alloy resists the fluoride and chloride impurities present in phosphate rock digestion. Suitable for phosphoric acid purification stages in uranium and rare earth refining from phosphate sources.

All castings undergo solution annealing post-pour to restore full corrosion resistance. Our in-house testing includes chemical analysis via optical emission spectrometry, tensile testing, and Corrosion Rate measurements per ASTM G28 Method A (Streicher test) to verify intergranular corrosion resistance before any Hastelloy pump leaves our facility.

Why Choose HIS Pumps and Systems for Hastelloy Pumps

Selecting the right vendor for a Hastelloy pump is as critical as choosing the correct alloy. HIS Pumps and Systems brings over three decades of hands-on experience in high-performance alloy pump manufacturing, supplying to major metal refining conglomerates, independent smelters, and specialty chemical processors. Our engineering team does not simply quote from a catalog; we conduct a thorough process fluid analysis, review your P&ID, and model the hydraulic system to ensure the selected pump operates within 5% of its BEP under all anticipated operating scenarios – including startup, shutdown, and process upset conditions.

What differentiates us is our integrated approach to corrosion engineering. Before specifying a Hastelloy grade, our metallurgists review your complete chemistry profile – not just the bulk acid concentration, but also ppm-level chloride, fluoride, dissolved oxygen, and metal ion contaminants that dramatically influence localized corrosion thresholds. We then cross-reference this data with our proprietary database of over 2,000 corrosion case studies to recommend the exact alloy and, equally importantly, advise on process parameters like maximum allowable temperature and flow velocity to avoid erosion-corrosion. This prevents the all-too-common scenario where a correctly alloyed pump fails prematurely because it was operated outside the safe velocity window for that particular chemistry.

Unmatched After-Sales Support

• 24/7 Emergency Spare Parts: We maintain a strategic inventory of common Hastelloy impellers, wear rings, shafts, and seal assemblies. In the event of an unplanned outage, critical spares can be dispatched within 24 hours to minimize production downtime, with expedited air freight available globally.
• On-Site Vibration and Condition Monitoring: Our field service engineers conduct baseline vibration analysis and thermography during commissioning, then provide regular remote monitoring using wireless sensors. Trend analysis predicts seal and bearing degradation weeks before failure, enabling planned shutdowns instead of emergency responses.
• In-House Hastelloy Welding and Repair: Unlike vendors who outsource repairs, we maintain AWS-certified welders and full weld procedure qualifications for Hastelloy alloys. Damaged casings or impellers can be weld-repaired and re-solution-annealed, restoring them to original corrosion resistance at a fraction of replacement cost.
• Performance Testing and Documentation: Every pump undergoes a full-string test on our calibrated test bed using water or a surrogate fluid matching your fluid's viscosity and specific gravity. You receive a comprehensive data package including head-capacity curves, efficiency plots, NPSHr curves, vibration spectra, and material certificates.
• Process Guarantee: We stand behind our specifications. If a HIS-supplied Hastelloy pump experiences corrosion-related failure within the warranty period while operating within agreed-upon process conditions, we replace or repair the unit at our cost. This assurance reflects our confidence in our material selection methodology.
• Training and Knowledge Transfer: We provide hands-on training for your maintenance teams covering proper installation, alignment, seal replacement, and condition monitoring. This empowers your crew to maximize the lifespan of their Hastelloy pump assets without overdependence on external service calls.

Our client retention rate of over 94% in the metal refining sector speaks to the trust earned through consistent delivery. From a single replacement pump to a complete tankhouse circulation package, HIS Pumps and Systems treats every order with the same rigorous engineering discipline and customer commitment.

Talk to Our Hastelloy Pump Experts

Not sure which Hastelloy grade is right for your metal refining process? Our senior application engineers are available to discuss your fluid chemistry, operating conditions, and performance requirements. Send us a message on WhatsApp and receive a detailed technical recommendation within one business day – no obligation, just expert guidance.

Material Compatibility for Metal Refining Fluids

Understanding the precise interaction between your process fluid and the pump's wetted materials is the foundation of reliable pump selection. Metal refining involves a diverse array of corrosive media, each with unique chemical signatures that attack metals through different mechanisms. Hastelloy alloys are not a monolithic solution; each grade has a specific corrosion resistance profile that must be matched to the oxidizing or reducing nature of the fluid, the presence of halides, and the operating temperature. Below is a detailed compatibility guide based on decades of field performance data and laboratory corrosion testing per ASTM G31 and G48 standards.

The primary corrosion mechanisms in metal refining pump services include uniform corrosion, pitting corrosion, crevice corrosion, and stress-corrosion cracking (SCC). Uniform corrosion is predictable and manageable through corrosion allowance in wall thickness. However, localized attacks like pitting and crevice corrosion can perforate a pump casing with minimal overall weight loss, leading to sudden and dangerous failures. Hastelloy alloys combat localized corrosion through high molybdenum content, which stabilizes the passive film and raises the critical pitting temperature (CPT) well above typical process temperatures. For example, Hastelloy C-276 exhibits a CPT above 100°C in oxidizing chloride solutions, whereas 316L stainless steel pits at ambient temperatures in the same environment.

Acid Compatibility Matrix

• Sulfuric Acid (H₂SO₄): Hastelloy C-276 handles concentrations from 0-98% up to 80°C, and up to 50% concentration at boiling. For hot concentrated sulfuric acid above 90% at temperatures exceeding 120°C, Hastelloy C-2000 or D-205 provide superior resistance. This is critical for copper SX-EW electrolyte and nickel laterite pressure leaching where acid concentrations fluctuate widely.
• Hydrochloric Acid (HCl): Hastelloy B-3 is the premier choice, resisting all concentrations up to boiling with corrosion rates below 0.1 mm/year. However, B-3 is sensitive to oxidizing contaminants like ferric chloride or dissolved oxygen. When oxidizing species are present, C-276 or C-22 must be selected, accepting a slightly higher corrosion rate in pure HCl in exchange for stability against oxidizers.
• Nitric Acid (HNO₃): Pure nitric acid is strongly oxidizing, and Hastelloy C-22 with its higher chromium content outperforms C-276. C-22 resists concentrations up to 65% at boiling. In mixed HNO₃/HF pickling acids, the fluoride ions demand the molybdenum content of C-276 or C-22 to prevent pitting, making these alloys the standard for stainless steel pickling line pumps.
• Phosphoric Acid (H₃PO₄): Wet-process phosphoric acid contains fluoride, chloride, and sulfate impurities that attack standard stainless steels. Hastelloy G-35 was specifically developed for this service, resisting the synergistic corrosive effects of these impurities at concentrations up to 54% P₂O₅ and temperatures to 120°C, making it ideal for uranium and rare earth refining from phosphate ores.
• Hydrofluoric Acid (HF): Even at low concentrations, HF aggressively attacks silica-containing materials and most metals. Hastelloy C-276 and C-22 provide acceptable resistance up to 5% concentration at ambient temperatures. For higher HF concentrations or elevated temperatures, Hastelloy C-2000 with its optimized Mo/Cr ratio offers the best balance of resistance and cost.
• Mixed Acids and Aqua Regia: In precious metals refining, aqua regia (3:1 HCl:HNO₃) is one of the most corrosive media known. Hastelloy C-276 and C-22 resist these conditions at ambient temperatures, but for sustained exposure at elevated temperatures, tantalum or zirconium may be required for certain components. Our engineers can advise on the most cost-effective material selection for these extreme services.
• Chloride Salt Solutions: In electrowinning and molten salt processes, chloride-induced pitting and SCC are primary concerns. Hastelloy C-276 with its PREN (Pitting Resistance Equivalent Number) exceeding 65 resists pitting in neutral and acidic chloride brines up to 100°C. For magnesium chloride or zinc chloride brines above 100°C, C-22 or C-2000 provide additional safety margin.

Beyond the base alloy, we carefully select elastomers, gaskets, and mechanical seal faces to ensure full chemical compatibility. FFKM perfluoroelastomers like Kalrez or Chemraz are specified for aggressive acid services where standard FKM would swell or degrade. Seal faces of silicon carbide versus carbon or tungsten carbide are chosen based on the fluid's lubricity and abrasiveness. This holistic approach to material compatibility ensures that every component in contact with the process fluid contributes to the pump's overall reliability, not just the metal parts.

Hastelloy Pump Selection Guide for Metal Refining

Selecting the optimal Hastelloy pump for your metal refining application requires a systematic evaluation of process parameters, fluid characteristics, and operational constraints. Rushing this decision or defaulting to a generic specification inevitably leads to either over-engineering with unnecessary cost or under-specifying with premature failure. The following structured selection methodology, refined through hundreds of successful installations, will guide you to the right pump configuration. We recommend involving your process engineers, metallurgists, and maintenance team in this evaluation to capture all perspectives.

The selection process begins with a thorough fluid characterization. You must document not only the bulk chemical composition but also trace contaminants, dissolved gases, and any solids content. For example, a copper electrowinning electrolyte may be nominally 180 g/L sulfuric acid with 45 g/L copper, but the presence of 50 ppm chloride, 10 ppm fluoride, and entrained organic extractant droplets dramatically alters the corrosion profile. Similarly, the presence of abrasive anode slimes or precipitated gypsum crystals influences the choice between a closed or semi-open impeller and dictates the required wear ring clearances and materials. Temperature excursions during process upsets must also be considered; a pump that operates normally at 60°C may see 95°C during a heat exchanger bypass event, and the Hastelloy grade must retain its corrosion resistance across this entire range.

Step-by-Step Selection Methodology

• Step 1: Define Process Fluid Chemistry: Compile a complete chemical analysis including all major and minor constituents down to ppm level. Pay special attention to chloride, fluoride, ferric ions, and dissolved oxygen as these are potent accelerators of localized corrosion. Document pH, conductivity, and redox potential if available. This data directly determines the Hastelloy alloy grade selection.
• Step 2: Establish Operating Envelope: Determine the full range of flow rates, discharge pressures, suction conditions, and fluid temperatures the pump will experience – not just the normal operating point but also startup, shutdown, and upset conditions. Calculate the NPSH available (NPSHa) at the pump suction flange under worst-case conditions (highest temperature, lowest tank level) and ensure a minimum margin of 1 meter above the pump's NPSH required (NPSHr).
• Step 2: Establish Operating Envelope: Determine the full range of flow rates, discharge pressures, suction conditions, and fluid temperatures the pump will experience – not just the normal operating point but also startup, shutdown, and upset conditions. Calculate the NPSH available (NPSHa) at the pump suction flange under worst-case conditions (highest temperature, lowest tank level) and ensure a minimum margin of 1 meter above the pump's NPSH required (NPSHr).
• Step 3: Select Pump Configuration: Based on the fluid's vapor pressure, toxicity, and value, choose between a mechanically sealed pump for general acid transfer, or a sealless magnetic drive pump for zero-emission applications. For fluids containing abrasive solids above 5% by weight, select a semi-open impeller with hardened Hastelloy wear plates; for clean fluids, a closed impeller delivers higher efficiency and lower axial thrust.
• Step 4: Validate Alloy Grade with Corrosion Data: Cross-reference your fluid chemistry against published isocorrosion curves from the alloy manufacturer and, critically, against our internal field performance database. For mixed acid streams where isocorrosion data is unavailable, request a laboratory corrosion coupon test per ASTM G31. We can facilitate this testing using actual process fluid samples to provide quantitative corrosion rate data before final alloy selection.
• Step 5: Size the Pump Hydraulics: Plot your duty point on the pump's HQ curve and verify it falls between 70% and 120% of the Best Efficiency Point (BEP) flow. Operation too far left of BEP causes recirculation and vibration; too far right risks cavitation and excessive NPSHr. For systems with widely varying flow demands, consider a variable frequency drive (VFD) to maintain operation near BEP across the full flow range, simultaneously saving energy and extending pump life.
• Step 6: Specify Mechanical Seal and Support System: For mechanically sealed pumps, define the seal type (single, dual unpressurized, or dual pressurized), seal face materials, secondary seals, and the API piping plan. A dual pressurized seal with a Hastelloy metal bellows and an external barrier fluid system (API Plan 53B) provides the highest reliability for hazardous acid services. The barrier fluid must be compatible with the process in case of inboard seal leakage and should be monitored for pressure and level to provide early warning of seal degradation.
• Step 7: Plan for Installation and Commissioning: Ensure the pump foundation is rigid and level, the suction piping provides at least 10 pipe diameters of straight run before the pump inlet, and eccentric reducers are installed with the flat side up to prevent vapor accumulation. During commissioning, verify alignment after piping is connected and thermally cycled, confirm rotation direction, and record baseline vibration and temperature readings for future trend analysis.
• Step 8: Establish Spare Parts and Maintenance Strategy: Work with our service team to identify critical wear components and recommended spare parts inventory levels based on your pump's duty cycle and consequence of failure. A minimum recommended spares package includes a mechanical seal assembly, gasket set, wear rings, and shaft sleeve. For plants with multiple identical pumps, we help optimize shared spares inventory to minimize capital tied up while ensuring 95% availability.

By following this structured selection process, you transform the purchase of a Hastelloy pump from a commodity transaction into a reliability investment. Our application engineers are available at every step to provide technical data, review your calculations, and offer alternative solutions that may reduce capital cost without compromising safety or longevity. We encourage you to leverage our decades of metal refining pump experience – it costs nothing to consult with us and can save hundreds of thousands of dollars in avoided failures and lost production over the pump's service life.

The right Hastelloy pump, correctly specified and properly installed, will operate reliably for a decade or more in the most aggressive metal refining circuits. It will pay for its initial premium many times over through reduced maintenance labor, eliminated emergency repairs, and uninterrupted production. Contact HIS Pumps and Systems today to begin your selection process – we are ready to help you achieve the lowest total cost of ownership for your critical pump assets.