Description
Sundyne Pump Marelli VS4 vertically suspended, volute centrifugal pump with discharge column separate from shaft column-Its vertical design fits tight spaces, while the separate discharge column and radial-split casing simplify maintenance.
Key Technical Specifications:
- Flows to 7,000 gpm (1,600 m³/hr)
- Heads to 1,180 ft (360 m)
- Maximum Power 939 HP (700 kW)
- Maximum Case Working Pressure 580 psi (40 bar)
- Temperature Range -22 to 752°F (-30 to 400°C)
Why Choose the VS4?
Select the VS4 when you need a robust, self-priming vertical pump that operates directly from a wet pit or sump. Designed to API 610 VS4 specifications, it features a separate discharge column and a radially split, volute casing. Ideal for tight installations and abrasive or aggressive fluids, it supports high-pressure pump-outs to 1,180 ft head while delivering up to 7,000 gpm flow—all within a compact footprint
Main Features
Vertically suspended line-shaft pump with separate discharge column and flexible motor mount
Radial-split volute casing, single-stage design with radial impeller
Self-venting bowl eliminates priming needs
Column-support bearings (journal type) and optional external flushing enhance reliability
Fully enclosed shaft to handle abrasive or aggressive fluid slurries
API 682-compliant seal chamber for optional mechanical seal configurations
Applications
A reliable fit where wet-pit operations are typical, such as:
Refinery and petrochemical sump drainage
Desalination intake and basin pump-out
Tank farm drainage and transfer
Offshore platforms and FPSO wet-pits
Condensate return and process charge systems
Choose the VS4 for compact, no-priming wet-pit reliability. With high-pressure capability, abrasion-ready features, and API-rated hydraulics, this pump excels in sump, platform, and tank-farm duties—backed by Sundyne’s global engineering support.
