Multistage Pumps
High-Pressure Industrial Multistage Pumps
FILIPUSI engineers, manufactures, and exports premier heavy-duty multistage centrifugal pumps scaling total dynamic head up to 1,800 meters. Designed for extreme pressure amplification in boiler feed water, SWRO desalination, and deep mine dewatering.
|
Volumetric Flow (Q)
1 to 1,350 m³/h
|
Total Dynamic Head (H)
10 to 1,800 m
|
Thermal Limits
-20 °C to +250 °C
|
Advanced Metallurgy
Duplex SS / Alloy Steel
|
|
Horizontal Segmental Series
Heavy-duty ring-section stages with hydraulic balance disks for massive flow demands and extreme pressure scaling. |
Space-Saving Vertical Inline Series
Reduces mechanical footprint by up to 60%. Inline suction and discharge ports permit direct integration into straight piping. |
Mission-Critical Deployments & Industrial Applications
- Industrial Boiler Feed Processing: Absorbing severe thermal shock and high transient expansion profiles through heavy-wall cast carbon steel housings, cartridge mechanical seals, and specialized external cooling loops.
- Reverse Osmosis Membrane Desalination (SWRO): Engineered with Duplex 2205 or Super Duplex 2507 fluid ends to systematically conquer localized pitting and stress corrosion cracking under 60+ bar continuous pressure.
- High-Head Mine Dewatering & Tunnel Drainage: Incorporating wear-resistant hardened alloy impellers and robust balancing mechanisms to manage high-concentration abrasives in deep underground shafts.
Verified Operational Matrix & Manufacturing Scope
| Engineering Parameter | Standard Inventory Range | Custom OEM/ODM Project Scope |
|---|---|---|
| Flow Capacity (Q) | 5 to 500 m³/h at Best Efficiency Point | Custom scaled impellers delivering up to 1,350 m³/h |
| Pressure Head (H) | 50 to 1,000 meters velocity accumulation | Super high-head modifications up to 1,800 meters |
| Thermal Tolerances | -20 °C to +140 °C fluid threshold | Extended profiles up to +250 °C via jacketed seals |
| Base Metallurgy | SS304 / SS316 / Premium Cast Steel | Duplex 2205, Super Duplex 2507, Hardened Alloys |
Structural Integrity: Defeating Shaft Deflection & Pressure Leakage
FILIPUSI solves the historical industry problem of shaft deflection by deploying oversized, precision-ground solid alloy shafts combined with localized inter-stage throttling bushings. Furthermore, our metal-to-metal stage casings feature secondary high-temperature elastomeric O-rings, generating a redundant sealing boundary that completely eliminates localized high-pressure fluid tracking.
Technical FAQ — Engineering Logic in Multistage Systems
Q1: What mechanical logic requires a multi-stage layout instead of increasing single-stage motor speed?
A: Attempting to generate extreme dynamic heads via a single high-speed impeller triggers catastrophic cavitation, rapid shaft deflection, and severe efficiency drops. FILIPUSI multistage pump systems distribute the required head generation across multiple consecutive hydraulic stages along a single solid shaft.
Q2: How does your manufacturing plant counter massive axial thrust forces?
A: In our horizontal multi-stage series, we integrate precision-ground balance disks or hydraulic balance drums behind the high-pressure stage. This mechanism continuously self-neutralizes up to 95% of axial loading, significantly extending mechanical seal lifespans.
• Head requirements under 160m? Explore our Vertical Inline Centrifugal Pumps.
• Standard single-stage application? View our Horizontal End Suction Centrifugal Pumps.
• Marine & shipboard projects? Consult our Marine Centrifugal Pumps portfolio.
About Us 
Contact Us 
