"> Sulzer SJT
⚓ Working on this equipment?
Ask the AI troubleshooter, log your hours on board and turn them into invoice-ready service reports — for this exact model.
Start free — 14 days →
No credit card required
🔧 23 verified suppliers & service companies for Sulzer in the Maritime Network Find suppliers →
Sulzer

SJT

Sulzer SJT — General-purpose vertical pump for water supply, irrigation, flood control, ground water pumping, marine applications.

Components & Design

Component data being added…

Technical Data

Number of Sizes 46 sizes with 69 hydraulic combinations
Capacity Range 1,600 - 180,000 USgpm (360 - 41,000 m³/h)
Head Range Up to 360 ft (110 m)
Pressure Range 125 - 925 PSIg (8.6 - 63.8 Bar)
Temperature Up to 122°F (50°C)
Speed Range 320 - 1800 RPM
Design Single-stage vertical pump with fully updated hydraulics

🤖 Ask about this model

One free question — answered like a marine engineer. No account needed.

Common failures & inspection points

Cavitation and NPSH (Net Positive Suction Head) Verification

Verification of available and required NPSH against datasheet specifications; control of suction conditions and piping design; measurement of static and dynamic pressure at suction line

Material compatibility with seawater and freshwater

Verify housing material (stainless steel duplex/super-duplex vs. carbon steel) against operating fluid; perform corrosion testing per ASTM G48 or equivalent; check wear parts (wear rings, seals) for saltwater resistance

Vibration and imbalance at high flow rates

Vibration measurement (ISO 20816 or ISO 10816) at rated speed and load; check impeller balancing (ISO 1940); monitor bearing temperatures and clearance; test for wear on wear rings

Seal system integrity and leakage losses

Check condition of mechanical seals or labyrinth seals; measure leakage flow; control for corrosion on seal faces; inspect pressure relief systems for seawater/freshwater applications

Hydraulic performance and wear effects

Flow and pressure measurement during operation; compare with manufacturer curves; control for wear ring wear; check for cavitation phenomena or backflow indications; verify efficiency against specification

Type-general inspection and maintenance points for this equipment category — not model-specific.

Suppliers & Spare Parts

Direct links to manufacturer, datasheet, spare-parts portal and dealers — request access below.

📄 Request sourcing links & documents
🛠 Manage this equipment in your fleet

Cases, daily reports, timesheets and AI troubleshooting in the OceanSphere Marine app — free for 14 days.

Start free trial →
🔎 Suppliers & service for this equipment

Find manufacturers, repair shops and spare-part dealers in the Maritime Network — our global company directory.

Maritime Network →
Equipment Model #145209 · ✓ still in production