TThe Horizontal Centrifugal Pump features direct-coupled alignment-free structure, tungsten carbide/silicon carbide double-end seals, and back pull-out design for -20℃ to +120℃ stable delivery.
It solves complex alignment, vibration/noise exceedance, seal leakage, and pipeline-disassembly maintenance in conventional horizontal centrifugal pumps.
It is suitable for building water boosting, HVAC circulation, industrial process transfer, and explosion-proof/corrosion-resistant/low-noise applications requiring ISO 2858 compliance.
Extended Service Life: Standard WC/SiC mechanical seals + 2Cr13 stainless steel shaft resist wear, corrosion & cavitation. Bearing design lifespan ≥15,000 hours. Overall unit lifespan over 40% longer than standard cast-iron pumps.
Significant Energy Savings: CFD-optimized hydraulic model + high-efficiency motor matching achieve ≥78% rated efficiency, compliant with ISO 9906 Class 1. Comprehensive lifecycle energy consumption reduced by 3%–5%.
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 45 minutes, reducing labor costs by 50%.
Lightweight & Compact Design: Motor-pump direct coupling eliminates coupling guard & heavy baseplate. Overall weight reduced by ~30% for equivalent flow/head ratings, lowering floor load & lifting complexity.
Faster Installation: Radial suction/vertical discharge + pre-aligned flanges enable zero-cutting pipe connection on-site. Standard units reach commissioning readiness within 1.5 hours from unboxing, compressing installation cycle by 45%.
Building Water Supply: Industrial/municipal supply | High-rise secondary water | Residential boosting | Hot/cold circulation | Stable pressure, continuous flow HVAC Circulation: Central AC chilled/cooling loops | Terminal boosting | Urban heating | Variable-flow adaptive, energy-saving Industrial Process: Energy/metallurgy/chemical/pharma/textile/paper | Clean water & neutral liquids | Continuous operation, auto-control ready Special Media: Explosion-proof ISWY (flammable) | Stainless ISWH (corrosive) | Long-distance/irrigation/marine | Low-noise ISWD Media: Clean water/non-corrosive liquids | Fine particles: wear-resistant seals optional | Max pressure ≤1.6 MPa (cast steel 2.5 MPa customizable)
Product Structure Diagram | |||||||
| 1 | Baseplate | 4 | Impeller | 7 | Water Slinger | 10 | Shaft |
| 2 | Drain Port | 5 | Pressure Test Port | 8 | End Cover | / | / |
| 3 | Pump Casing | 6 | Mechanical Seal | 9 | Electric Motor | / | / |
Media: Clean water or similar non-corrosive liquids Temp: Media -20°C to +120°C (-4°F to 248°F) | Ambient ≤40°C (≤104°F)
System: Max pressure ≤1.6 MPa (≤232 psi); cast steel customizable to 2.5 MPa (363 psi) |
Install: Horizontal inline, radial suction/vertical discharge Environment: Altitude ≤1000m (≤3280 ft) | Humidity ≤95% non-condensing Note: Special conditions (high temp/strong corrosion/high particles/high altitude/explosion-proof)? Consult before selection. Custom solutions available.
International Standard Compliance: Strictly manufactured per ISO 2858 “End-suction centrifugal pump performance standards” & GB/T 5657-2013. Hydraulic performance complies with ISO 9906 Class 1 accuracy. Third-party full performance curve test reports available.
Mechanical Seal Certification: Mechanical seals comply with ISO 21049 standard. WC/SiC mating faces suit -20℃ to +120℃ temperature range, leakage rate <0.01 mL/h, meeting zero-leakage requirements.
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 G6.3 dynamic balance calibration + noise test (≤75 dB(A)), guaranteeing zero-leakage, low-noise delivery.
Fast Standard Delivery: Covers flow 3–400 m³/h, head 8–150 m. Standard cast iron/304 stainless steel wetted parts + IP55 motors. Technical confirmation & sample prototyping within 72 hours.
Deep Customization Capabilities:
Material Upgrade: Wetted parts optional in 316/duplex 2205 stainless steel or PTFE-lined for strong acids/alkalis, high-chloride, or food-grade hygiene applications.
Seals & Motors: Optional high-temp mechanical seals (up to 120℃), explosion-proof motors (Ex d IIB T4/Ex d IIC T4), IE4 ultra-efficiency or VFD-dedicated drives.
Structural Adaptation: Flange standard switching (GB/ANSI/DIN/JIS), reinforced base, pre-installed flexible joints, low-noise/outdoor rain-proof canopy customization.
Intelligent Expansion: Pre-wired interfaces for pressure/temperature/vibration 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 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 “ISW Series Horizontal Inline Centrifugal Pump Installation & Maintenance Manual” (PDF/English version) for complete dimensional drawings, flange specs, and commissioning logs.
Q1: How does motor-pump direct-coupling ensure “zero alignment adjustment”?
Factory laser precision alignment (runout ≤0.03 mm) completed. Combined with short-span rigid shaft system, on-site installation only requires leveling & fixing base—no secondary pump-motor coaxiality calibration needed.
Q2: How do WC/SiC seals achieve leakage rate <0.01 mL/h?
Dual-face series layout + oil-chamber lubrication/cooling. Hard alloy mating faces precision ≤0.001 mm, combined with spring constant-pressure compensation. Tested leakage rate <0.01 mL/h, meeting zero-leakage requirements.
Q3: How does ISO 1940 G6.3 dynamic balance ensure vibration ≤2.8 mm/s?
Impeller undergoes high-precision dynamic balance calibration, residual unbalance ≤2.8 g·mm/kg. Combined with short-span shaft & heavy-duty self-aligning bearings, tested vibration ≤2.8 mm/s across all duties.
Q4: How to configure mechanical seals for media containing fine particles?
Standard WC/SiC seals suit clean water. Specify during ordering for particulate media. We upgrade to wear-resistant dual mechanical seals (with flush plan Plan 53B) & recommend upstream filter installation.
Q5: How does back-pull-out design enable “maintenance without disconnecting pipes”?
After loosening rear cover bolts, motor + bracket + rotor assembly can be pulled out rearward as a unit. Core components (seals/bearings/impellers) are fully exposed for maintenance without disturbing inlet/outlet pipes.
