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Goulds (Xylem) VT 12 inch SD

Vertical Turbine Seawater

Identification
ManufacturerGoulds (Xylem)
SeriesVT Seawater
Model / sizeVT 12 inch SD
Pump typeVertical Turbine Seawater
Spec codePS-VT-010
Duty & power
Min flow200 m³/hr
Max flow1200 m³/hr
Min head20 m
Max head350 m
Max power400 kW
NPSHr4 m
Efficiency at BEP78 %
Drive & electrical
Starting methodVFD mandatory (liquid coupling or variable speed for large motors)
VFD compatibleYes (consult factory)
Motor IE classIE3 (mandatory EU/MEPS) / IE4 optional
Insulation classClass F (155°C) standard
IP ratingIP55
Materials & sealing
CasingSuper Duplex 2507
ImpellerSuper Duplex 2507
ShaftSuper Duplex 2507
Seal typeMechanical Seal
API seal planPlan 32 (external flush) + Plan 52 (buffer barrier)
Application
ServiceSeawater, Desalination
Key featuresSuper duplex for SWRO intake

← Back to the Pump Selector

Pump specification, curve, seal plan, maintenance & troubleshooting

A complete, shareable page for a single pump. It plots the performance curve (head, efficiency and NPSHr against flow, with the best-efficiency point marked, or dosing flow against stroke), decodes the API 682 / ISO 21049 mechanical seal plan, and lists the full specification — duty and operating range, drive and motor, materials of construction, build and reliability, connections, weight and certifications. Pop-up panels give the type-specific preventive-maintenance schedule (daily to annual tasks with procedures) and a troubleshooting guide (symptoms, probable causes and recommended solutions).

Run a centrifugal pump near its BEP and keep dosing pumps in their recommended stroke band. Data is from the engineering reference database — confirm against the manufacturer's certified curve before procurement.

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