Vertical Suspended Single Casing Inline Pump (API 610 VS3)

Model: CVN

The CENTFOS-CVN API 610 VS3 pump is a vertical suspended, single-casing centrifugal pump designed for refinery, petrochemical, offshore, and industrial services. Its vertical shaft and inline discharge design provide compact installation and simplified piping. Engineered with optimized hydraulics and rugged construction, it ensures reliable performance in demanding industrial applications.

API 610 VS3 Pump

Introduction

The CENTFOS-CVN, API 610 VS3 pump is a vertical suspended, single-casing centrifugal pump designed in accordance with the latest edition of API 610 for refinery, petrochemical, offshore, and industrial process services.

The VS3 configuration is characterized by a vertical suspended shaft with inline discharge arrangement, combining the benefits of vertical installation with simplified piping layout. This design is especially suitable for applications requiring compact installation, minimal floor space, and stable operation under demanding conditions.

CENTFOS VS3 pumps integrate optimized hydraulic design, rugged mechanical construction, and API-compliant engineering to ensure reliable performance in severe-duty industrial environments.

Key Features
  • Designed according to API 610 (VS3 type)
  • Vertical suspended configuration
  • Single casing construction
  • Inline discharge arrangement
  • Compact footprint
  • Line shaft supported rotor
  • Replaceable wear rings
  • Cartridge seal compatible
  • API 682 seal chamber design
  • Low shaft deflection
  • Continuous duty capability
  • Suitable for VFD operation
  • Customizable column length
  • Designed for severe service environments
Technical Specifications
Parameter Range
Flow Rate Up to 3,500 m³/hr
Head Up to 220 m
Pressure Up to 40 bar
Temperature −46°C to +400°C
Speed Up to 3,600 rpm
Setting Depth Up to 12 m or more
Stages Single or multistage
Impeller Type Closed / Semi-open
Seal Type Mechanical seal
Mounting Vertical mounting plate
Design Characteristics
Hydraulic Design
  • Optimized impeller geometry for high efficiency
  • Smooth hydraulic passages
  • Balanced hydraulic forces
  • Stable operation across flow range
  • Low NPSHr characteristics
  • Suitable for varying process conditions
Mechanical Design
  • Vertical suspended rotor configuration
  • Line shaft bearing support system
  • Heavy-duty shaft construction
  • High stiffness rotor assembly
  • Precision-machined components
  • Designed for continuous industrial duty
  • Long bearing life
Seal Chamber Design
  • API 682 compliant seal chamber
  • Cartridge seal compatible
  • Suitable for hazardous fluids
  • Large bore seal housing
  • Multiple seal flush plan options
Installation Advantages
  • Inline piping arrangement reduces installation complexity
  • Minimal footprint requirement
  • Motor remains above liquid level
  • Eliminates suction piping
  • Simplified alignment
  • Easy removal for inspection or maintenance
Construction & Materials
Component Standard Material
Casing Carbon steel
Impeller SS316 / CF8M
Shaft AISI 4140 / 410 SS
Wear Rings Stainless steel
Bearing Bushings Bronze / composite
Discharge Head ASTM A216 WCB
Fasteners Alloy steel
Optional materials
  • Duplex stainless steel
  • Super duplex
  • Alloy 20
  • Monel
  • Hastelloy
  • Corrosion-resistant alloys
Applications
CENTFOS VS3 pumps are widely used for:
  • Refinery transfer services
  • Hydrocarbon storage terminals
  • Chemical processing plants
  • Offshore installations
  • Tank farm circulation
  • Cooling water systems
  • Power generation plants
  • Utility systems
  • Petrochemical processing
  • Hazardous liquid handling
Advantages
  • Compact vertical design
  • Reduced piping footprint
  • Reliable continuous operation
  • Low vibration performance
  • Long service life
  • API-compliant heavy-duty construction
  • Suitable for hazardous environments
  • Ideal for critical industrial processes