SJT/SJM CWP VERTICAL COOLING WATER PUMP

Your large flow “ready-to-order” cooling water pump

The SJT/SJM CWP are “engineered to order” large flow vertical pumps for industrial pumping needs and sump design, with semi-open or closed cast impellers available in sizes starting from 650 mm (26″) impeller diameter and nq 75 (Ns 3’870). They are mainly designed as cooling water pumps for thermal power and combined-cycle power applications but can also be used in water or other industries.

Description

Main benefits

High pump efficiency
Modern fabricated suction bell and bowl casing incorporating swirl break for stable pump performance curve
Semi-open or closed cast impeller design for best fit and optimum efficiency
Segmented elbow to optimize pump efficiency
Optional full pull-out construction to reduce lifting crane capacity and ease maintenance

Main applications

SJT/SJM CWP pump is specifically designed as circulating water pump for the following fields:

Cooling water pump in utility thermal, nuclear, gas-fired combined-cycle power plants and industrial power stations
Water supply
Irrigation
Flood control and drainage
General water service
Cooling water pump for refining and seawater intake pump for open rack vaporizers in LNG regasification terminals

Features and benefits

1. Modern fabricated suction bell and bowl casing

Incorporating flow straightener for stable pump performance curve
Tailor-made bowl diameter to optimize pump selection and efficiency

2. Modern semi-open or enclosed cast impeller design

Best hydraulic fitting and optimum efficiency. Fabricated impeller construction optional

3. Individually sized pump shaft

Sized for maximum torque. Shaft protection sleeves included as standard
Line shaft connected by split ring, key and sleeve couplings to ease maintenanc

4. Fabricated column assembly and discharge head

Column assemblies have integral spider to improve stiffness
Segmented elbow to optimize the pump efficiency
Above- or below-ground discharge to fit the site requirements

5. Product lubricated radial bearings

Cutless rubber (phenolic backed) bearing bushings as standard in bowl/lineshaft, other material options are also available
Two bearings bushings included in the bowl for increased rotor stability

6. Packing shaft seal

Reliable sealing and simple maintenance

7. Thrust bearing

Thrust bearing can be provided either in the pump or within the motor

8. Optional full pull-out construction

Reduces the crane lifting capacity required
Significantly improves the maintenance turnaround time

Operating data

	50 Hz	60 Hz
Impeller diameter	Up to 1,920 mm	Up to 76 in.
Capacities	Up to 90,000 m³/h	Up to 396,000 US gpm
Heads	Up to 60 m	Up to 200 ft.
Pressures	Up to 8.6 bar	Up to 125 psi
Temperatures	Up to 50^oC	Up to 122^oF