API 610 Centrifugal Pumps

When high-pressure fluid transfer exposes weak points, frequent maintenance and energy waste disrupt operations and raise costs. Our API 610 Centrifugal Pumps deliver high head up to 3,000 meters and flow rates beyond 6,000 cubic meters per hour. 

Flow Rate Range

10 m³/h to 6,000 m³/h (44 GPM to 26,400 GPM)

Pressure/Head Capacity

Up to 3,000 meters (9,842 ft) – Multi-stage designs available

Power Requirements

15 kW to 5,000 kW (20 HP to 6,700 HP), 2-pole/4-pole motors, 50/60 Hz, VFD compatible

Materials of Construction

Casing: Carbon Steel, Stainless Steel (316/316L), Duplex, Super Duplex Impeller: 316SS, 17-4PH, Alloy 20, Titanium

Fluid Compatibility

Crude Oil, Refined Products, LPG, Amine, Hot Oil (350°C+), Corrosive Process Fluids

Product Description

Frequent failures in rotating parts raise long-term spending and delay critical deliveries. These pumps use duplex-grade materials, low-NPSH hydraulics, and API seal plans to meet plant demands and reduce unplanned downtime. 

Temperature Range

-100°C to +450°C (-148°F to 842°F) – Special designs for cryogenic/HT service

Connection Types & Sizes

Flanged (ANSI 150# to 2500#), RF/RTJ, sizes: 50 mm to 600 mm (2″ to 24″)

Mounting Configuration

Horizontal/Vertical, Overhung (OH), Between Bearing (BB), Vertically Suspended (VS)

Seal System

API Plan 11/21/23/32/52/53, Dual Mechanical Seals, Gas Barrier Seals

Efficiency Rating

75% to 88% (optimized for hydrocarbon services)

NPSH Required

3 m to 15 m (10 ft to 49 ft) – Low NPSH designs available

Speed Range

2,900 RPM to 7,100 RPM (high-speed models for compact designs)

Solids Handling Capability

Clean service (API OH1/OH2) or Abrasive service (API OH3 with hardened materials)

API Classification Code

OH1/OH2/OH3/OH4 (Overhung), BB1/BB2/BB3/BB5 (Between Bearing), VS1/VS2/VS3 (Vertical)

Operating Noise Level

< 85 dB(A) (meets API noise requirements)

Coupling System

API 671 Flexible Coupling, Spacer Type with Guard, Laser-aligned

Technical Advantages

API 610 designs support extended runtime under corrosive, high-pressure, and high-temperature conditions. We use hardened impellers, duplex casings, and spacer-type couplings to handle flow imbalance and misalignment. 

Each unit aligns with ANSI flange codes for fast plant integration and comes in OH, BB, and VS layouts for mounting flexibility. High-efficiency hydraulics and proper seal plan selection minimize leakage risk and improve MTBF for end-use continuity. 

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Industry Applications

Refineries and Petrochemical Plants

Transfer of hydrocarbons and process fluids with accurate flow and low noise helps avoid unscheduled shutdowns in critical paths.

LNG and Cryogenic Terminals

Handling liquefied gases at -100°C and below keeps line pressure stable and ensures safe offloading under thermal stress. 

Fertilizer and Chemical Units

Aggressive media like amines or acids require corrosion-resistant casings and barrier seals to prevent seal leakage or casing failures.

Offshore Oil Platforms

Space-constrained zones benefit from compact high-speed OH2 pumps that support pressure recovery and resist salt-laden fluids.

Thermal Power Stations

Hot oil handling up to 450°C supports feed loops and preheating sections without cavitation or bearing stress.

Pipeline Booster Stations

High-speed designs with API 671 couplings move crude and refined product across long-distance lines with minimal efficiency drop.

API 610 Centrifugal Pumps

Supporting System with Proven Durability

Fluid transport lines rely on pumps that support heavy throughput and resist system variations over time. Our API 610 Centrifugal Pumps manage extreme temperatures, corrosive fluids, and system load shifts without losing flow stability. 

Low noise performance below 85 dB(A), with VFD compatibility and wide-speed range, makes them suitable for modern integrated systems. Multiple casing materials and API code configurations support faster selection and longer asset life for your production line. 

API 610 Centrifugal Pumps

Having Doubts? Our FAQ

Check all our Frequently Asked Question

How do I select the correct pump configuration (OH, BB, or VS) for my process?

Choosing between Overhung (OH), Between Bearing (BB), or Vertically Suspended (VS) depends on space, fluid type, and maintenance access. OH pumps suit simpler installations with lighter loads, while BB designs handle higher pressure and larger flows. VS pumps are ideal for limited floor space and specific vertical piping needs.

What are the key factors affecting pump efficiency for API 610 pumps?

Efficiency depends on impeller design, motor speed, and fluid viscosity. Operating pumps near their Best Efficiency Point (BEP) reduces energy consumption and wear. Variable frequency drives (VFD) can adjust speed to maintain optimal efficiency under varying loads.

Can API 610 centrifugal pumps handle abrasive fluids or solids in the liquid?

Standard API 610 centrifugal pumps are designed for clean or slightly abrasive fluids based on OH1/OH2 ratings. For abrasive or solids-laden fluids, the OH3 design with hardened materials offers improved durability. It’s important to specify the fluid characteristics to match the right pump and materials.

How does temperature impact pump material selection and seal system choice?

High or low fluid temperatures require specific alloys and seals to maintain integrity and prevent leaks. For cryogenic or hot oil service, materials like Duplex or Titanium and special mechanical seals ensure performance. Choosing the right combination reduces downtime and increases service life.

How does pump speed variation affect the performance and lifespan of API 610 centrifugal pumps?

Adjusting pump speed with a VFD allows better matching of flow and pressure to process needs. Operating within the recommended speed range prevents excessive wear and vibration. Proper speed control can improve energy efficiency and extend pump life without risking damage. 

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LOCATIONS

Global Sales Office

818, Preakness lane, Coppell, Texas, USA – 75019

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

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API 610 Centrifugal Pumps

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