Inline Metallic Monoblock Type

Description 

The IL-1145 Centrifugal Vertical In-line Metallic Monoblock Pump is a compact, close-coupled pump designed for direct installation in pipeline systems where space efficiency, stable hydraulic performance, and simplified maintenance are essential. Its vertical in-line arrangement keeps the suction and discharge nozzles on a common axis, reducing pipework complexity and making it suitable for mechanical rooms, marine engine rooms, utility skids, HVAC plants, and industrial service packages. 

 

The metallic construction supports continuous operation in clean water, treated water, cooling water, heating circuits, washdown systems, and general utility transfer duties. With an integrated electric motor and rigid monoblock arrangement, the IL-1145 minimizes alignment requirements compared with long-coupled pump sets while delivering dependable performance in circulation, transfer, pressure boosting, and fire protection services. 

 

Vertical in-line centrifugal pumps are widely used where floor space is limited, as their upright configuration allows compact installation in confined pump rooms and other restricted areas. Their back pull-out design enables the impeller and internal components to be accessed without disturbing the piping, supporting easier inspection and maintenance. The IL-1145 is therefore well suited to applications requiring efficient liquid handling, simplified installation, and reliable long-term operation. 

 

 

Technical Key Features 

• Meets ANSI B73.2-dimensional standards. 

• Top pull-out design simplifies maintenance. 

• PN 16 suction and delivery flange connections. 

• Space-saving design suitable for tight installations. 

• Base plate with fixation holes for easy installation. 

• Optional wear rings available for improved serviceability. 

• Component interchangeability supports maintenance flexibility. 

• Flanged suction and discharge on the common centreline of the casing. 

• Single-stage, in-line centrifugal volute construction with standard motors. 

• Vertical in-line configuration for compact installation directly into piping systems. 

• Fully enclosed, balanced, one-piece impeller design for efficient hydraulic performance. 

• Metallic hydraulic casing suitable for industrial, marine, HVAC, and utility water services. 

• Flanged suction and discharge connections for rigid pipe integration and service reliability. 

• Mechanical shaft seal with variant material selection suitable for up to 16 bar pressure rating. 

• Mechanical seal arrangement for reliable shaft sealing in clean and treated water applications. 

• Low-vibration rotating assembly designed for stable operation in continuous circulation duties. 

• Monoblock close-coupled design reduces alignment work, baseplate footprint, and installation time. 

• Suitable for fixed-speed or variable-speed operation when paired with compatible VFD motor systems. 

• Rotating parts can be removed and serviced without dismantling the suction and discharge pipework. 

 

 

Service Overview 

Parameter	Value
Equipment	Vertical in-line monoblock centrifugal pump
Fluid	Clean water, treated water, cooling water, heating water, utility water
Service Nature	Circulation, transfer, pressure boosting, cooling/heating loop duty, auxiliary fire water support
Operating Mode	Continuous or intermittent operation, depending on system demand

 

 

Specifications 

Item	Min	Max	Typical/Notes
Size	DN25 / 25 mm (1.000”)	DN200 / 200 mm (8.000”)	Flanged in-line connection; final nozzle size to be selected by duty point
Pressure	—	16 bar (232 psi)	Typical working pressure range for metallic in-line utility pumps
Temp	-30°C (-22°F)	+140°C (+284°F)	Dependent on seal, elastomer, and motor configuration
Speed	1450 rpm	2900 rpm	50 Hz motor speeds; VFD operation subject to motor and hydraulic selection

 

 

Materials 

Component	Standard Material	Optional Material	Comment
Pump Casing	Cast iron / ductile iron	Bronze, SS 304, SS 316	Select bronze or stainless steel for marine or corrosive water service
Impeller	Cast iron/bronze	SS 304, SS 316	Material selected according to water quality and corrosion risk
Shaft	SS 304	SS 316 / Duplex SS	Stainless shaft recommended for humid, marine, or treated-water environments
Mechanical Seal	Carbon/ceramic with elastomer secondary seals	SiC / SiC, TC / TC, FKM, EPDM	Seal face and elastomer selection depend on temperature and water chemistry
Motor Frame	TEFC electric motor	Marine-duty / VFD-rated / high-efficiency motor	Motor specification to suit the installation zone and electrical standard

 

 

Applications 

• Air-conditioning plant circulation systems. 

• Fire protection and jockey pump support duties. 

• Heating systems and boiler feed circulation support. 

• HVAC chilled-water and condenser-water circulation. 

• Cleaning, washdown, and utility water supply systems. 

• Industrial water circulation and utility transfer systems. 

• Marine engine-room cooling water and auxiliary water systems. 

• Pressure boosting systems for commercial and industrial facilities. 

 

 

Operating Limits

Parameter	Value
Pressure	Up to 16 bar (232 psi)
Temp	-30°C to +140°C (-22°F to +284°F)
Speed	Up to 2900 rpm
Size Range	DN25 to DN200 / 25 mm to 200 mm (1.000” to 8.000”)

 

 

Selection Note

Several operating values are inferred from typical vertical in-line metallic monoblock pump practice because exact IL-1145 hydraulic curves, motor rating, flange standard, and material schedule were not provided. Final pressure, temperature, flow, head, NPSH, motor power, and material selection should be verified against the manufacturer’s certified pump data sheet and duty-point curve.