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Product Overview
The Stainless Steel Centrifugal Pump features a direct-coupled structure, SUS304/316L stainless steel wetted parts, and silicon carbide double-end mechanical seals, integrated with an optimized hydraulic model and IE3 high-efficiency motor for stable transfer of corrosive, particle-containing, and high-temperature media.
Resolves four critical operational challenges of conventional cast iron pumps in chemical/food/pharmaceutical applications: corrosion-induced leakage, high contamination risk to process media, frequent downtime for maintenance, and excessive energy consumption.
Suitable for chemical acid/alkali transfer, food/pharmaceutical clean fluid handling, water treatment boosting, and HVAC circulation requiring transfer of liquids with pH 2-12, solid particles ≤2mm, and media temperatures from -20℃ to +120℃, with compliance to GMP hygiene standards and food-grade certifications.
Product Advantages
Extended Service Life: SUS304/316L stainless steel wetted parts + silicon carbide dual mechanical seals resist corrosion, wear & cavitation. Design lifespan ≥15 years—over 50% longer than standard cast-iron centrifugal pumps.
Significant Energy Savings: Optimized hydraulic model + IE3 high-efficiency motor matching achieve ≥78% rated efficiency. Combined with VFD on-demand regulation, annual electricity costs drop by 15%–25%.
Lower Maintenance Costs: Back-pull-out structure + integrated drain/pressure ports enables seal/impeller inspection without disconnecting inlet/outlet piping. Single technician completes maintenance within 1 hour, reducing labor costs by 50%.
Lightweight & Compact Design: Direct-coupled structure eliminates coupling guard & heavy baseplate. Overall weight reduced by ~25% for equivalent flow/head ratings, lowering floor load & lifting complexity.
Faster Installation: Pre-aligned flanges + pre-drilled integral base enable zero-cutting pipe connection on-site. Standard units reach commissioning readiness within 1.5 hours from unboxing, compressing installation cycle by 45%.
Application Scenarios
Chemical Process Transport: Acid/alkali solutions, organic solvents, chemical reagents transport. SUS304/316L stainless steel resists corrosion, adapting to complex chemical conditions & wide pH range 2–12.
Food & Pharmaceutical Industry: Beverage, dairy, pharmaceutical liquid transport. SUS316L material complies with GMP hygiene standards, easy to clean with zero residue, meeting food hygiene certification requirements.
Water Treatment Systems: Raw water boosting, circulating water transport, sewage treatment. Wear-resistant design + high-efficiency hydraulic model adapts to long-term continuous operation & media with trace particles (≤2 mm).
HVAC Systems: Cooling water circulation, chilled water transport, boiler make-up. Low-noise operation (≤70 dB(A)) + VFD energy savings significantly reduce system operating energy consumption.
Media Compatibility: Clean water/corrosive liquids/food & beverage/pharmaceutical liquids. Solid content ≤5% (vol), particle size ≤2 mm, pH 3–11 (304)/2–12 (316L), temperature -20℃ to +120℃ (-4℉ to 248℉).
Technical Parameters
Product Structure Diagram and Component List
 | NO. | Component |
| 1 | Straight Grease Nipple | |
| 2 | Hex Bolt | |
| 3 | Hex Bolt | |
| 4 | Spring Washer | |
| 5 | Flat Washer | |
| 6 | Lip Seal | |
| 7 | Gasket | |
| 8 | Bearing Bracket | |
| 9 | Parallel Key Type A (Coupling) | |
| 10 | Ball Bearing | |
| 11 | Pump Shaft | |
| 12 | Parallel Key Type A (Impeller) | |
| 13 | Bearing Housing | |
| 14 | Hex Nut Type A | |
| 15 | Slinger Ring | |
| 16 | Casing Cover | |
| 17 | Spring Seat | |
| 18 | Mechanical Seal | |
| 19 | O-Ring | |
| 20 | Impeller | |
| 21 | Flat Washer | |
| 22 | Stud Bolt Type A | |
| 23 | Spring Washer | |
| 24 | Cap Nut | |
| 25 | Wear Ring | |
| 26 | Casing / Volute | |
| 27 | Pipe Plug |
Operating Conditions
Media Requirements • Media: Clean water / corrosive liquids / food & beverage / pharmaceutical liquids • Solids: ≤5% vol, particle size ≤2 mm | pH: 3–11 (SUS304); 2–12 (SUS316L)
Temperature Limits • Media: -20°C to +120°C (-4°F to 248°F); standard/high-temp optional • Ambient: ≤40°C (≤104°F) | Humidity: ≤95% (non-condensing)
System Limits • Flow: 1.5–400 m³/h (24–6670 GPM) | Head: 5–125 m (16–410 ft); single/multi-stage optional • Max. pressure: 1.0 / 1.6 MPa (145 / 232 psi)
Electrical Limits • Power: 3-phase 380V ±10% / 50Hz (customizable) • Protection: Motor IP54/IP55 | Cabinet IP54 | Insulation: Class F
Note: Special conditions (strong corrosion / high particles / high altitude / explosion-proof)? Consult before selection. Custom solutions available.
Compliance & Certifications
Food Hygiene Compliance: Wetted parts in SUS304/316L food-grade stainless steel, passed drinking water safety evaluation & FDA food-contact material certification, compliant with GB 4806.9-2016, eliminating media contamination risks.
Chemical Corrosion Certification: Material corrosion resistance passed ASTM G48 pitting test & NACE MR0175 stress corrosion cracking certification, adapting to wide pH range 2–12 corrosive media.
International Quality System: ISO 9001:2015 certified. Core pressure-bearing components evaluated per CE/PED 2014/68/EU, meeting EU/US market entry requirements.
Factory Inspection Standard: Every unit undergoes 1.5× rated pressure hydrostatic test (5-min hold) + ISO 1940 G2.5 dynamic balance calibration + mechanical seal leakage test (<0.01 mL/h), guaranteeing zero-leakage delivery.
OEM & CUSTOM
Fast Standard Delivery: Covers flow 1.5–400 m³/h, head 5–125 m. Standard SUS304/316L + silicon carbide seals + IE3 motors. Technical confirmation & sample prototyping within 72 hours.
Deep Customization Capabilities:
Material Upgrade: Wetted parts optional in 2205/2507 duplex steel, titanium alloy, or PTFE-lined for strong acids/alkalis, high-chloride, or ultra-pure media conditions.
Seals & Motors: Optional high-temp mechanical seals (up to 150℃), explosion-proof motors (Ex d IIB T4), IE4 ultra-efficiency or VFD-dedicated drives.
Structural Adaptation: Flange standard switching (GB/ANSI/DIN/JIS), reinforced base, pre-installed flexible joints, outdoor rain/soundproof canopy customization.
Intelligent Expansion: Pre-wired interfaces for pressure/temperature/dry-run sensors; supports integration with VFD cabinets, IoT remote monitoring, multi-pump rotation modules.
Please contact us for customization inquiries. Our engineering team delivers process proposals within 48 hours.
Installation Guidelines
Installation Key Points:
1.Mount pump horizontally on solid foundation. Tighten anchor bolts symmetrically. Ensure shaft horizontal deviation ≤0.05 mm/m to prevent premature bearing wear from uneven loading.
2.Connect inlet/outlet with flexible rubber joints. Never transmit pipe stress to pump body. Provide independent supports for inlet/outlet piping.
3.Motor junction box faces outward. Secure cable along pipe wall. Grounding resistance ≤4 Ω. Manually rotate shaft 3 turns to confirm smooth, friction-free rotation.
4.Prime pump & vent air. Jog test to verify rotation (clockwise from motor end). Confirm insulation resistance ≥50 MΩ before operation.
Commissioning Process: Prime & vent → Jog test for direction → No-load run 5 min → Slowly open discharge valve to rated duty → Record current/pressure/vibration/bearing temp data → Acceptance.
Request the “Horizontal Stainless Steel Centrifugal Pump Installation & Maintenance Manual” (PDF/English version) for complete dimensional drawings, flange specs, and commissioning logs.
Frequently Asked Questions
This pump is suitable for clean water, mildly corrosive liquids, food and beverage liquids, pharmaceutical liquids, water treatment media, and HVAC circulation water. For corrosive, particle-containing, or high-temperature media, please provide the medium composition, temperature, pH value, and particle details before selection.
SUS304 is suitable for clean water, mildly corrosive liquids, and general industrial circulation. SUS316L offers better corrosion resistance and is recommended for food, pharmaceutical, chloride-containing media, acid/alkali liquids, or applications with higher hygiene requirements.
For fast and accurate selection, please provide flow rate, head, medium name, medium temperature, pH value, solid content, inlet pressure, power supply, installation environment, and whether VFD control is required. More complete data helps ensure a more accurate pump solution.
The pump adopts an end suction structure with a compact design and convenient maintenance. Depending on the configuration, components such as the pump casing, mechanical seal, impeller, and bearings can be inspected or replaced. Regular checks of seals, bearing temperature, vibration, and operating current are recommended for stable operation.
Yes. We can provide configuration options based on project conditions, including material, seal type, motor power, protection grade, flange standard, VFD control, and special installation requirements. For corrosive, high-temperature, food, pharmaceutical, or special industrial applications, technical requirements should be confirmed in advance.
