Cl SCi series pumps

Summary

Product identification

The CI Series Pumps are Close-Coupled End Suction Pumps designed for water circulation, heating, air conditioning, pressure boosting, cooling water transfer, and water supply applications.

• Model: CI / SCI Series
• Catalog #: 300-2.5
• Document Effective Date: 04/06/18
• Supersedes: 05/30/17

Key features include SelfSensing with ProBalance® technology, ECM motor options, and eLink™ connectivity.

Operating limits

The maximum total working pressure and temperature ratings are provided based on flange class.

• Standard Flange (ANSI Class 125):
  • Pressure: 175 PSIG (1210 KPA)
  • Temperature: 250°F (120°C)
• Optional Flange (ANSI Class 250):
  • Pressure: 300 PSIG (2070 KPA)
  • Temperature: 250°F (102°C)

For operating temperatures above 250°F, a cooled flush is required, and it is recommended for temperatures above 225°F for optimum seal life.

Feed water

The pumps are designed to protect the seal from non-condensible particles.

• Optional Filters:
  • Cuno 5 Micron
  • Kynar Cyclone Separator

Electrical

The CI Series offers ECM motor options and integrated drive solutions.

Oe Package (Optimized Efficiency)

This package includes a Permanent Magnet motor and a variable frequency drive (VFD) for increased efficiency.

• Horsepower Range: 3 - 30hp
• RPM: 1750
• Voltage Options:
  • 3-10 HP: 230V/460V/60/3 (useable at 208V), 575V/60/3
  • 15-30 HP: 460V/60/3, 575V/60/3
• Motor Enclosure Type:
  • 3-10 hp: TENV
  • 15-30 hp: TEFC
• Drive Enclosure Options: NEMA 1, NEMA12, NEMA4X

SelfSensing Series with ProBalance®

This technology integrates the pump and drive, allowing the pump to automatically respond to system demand changes without remote sensors or complex wiring. It includes automatic alerts and optional shutdown for no-flow, dry-run, and end-of-curve operation. The unit is electronically protected for overload and locked rotor conditions per UL 778 and CSA C22.2 No. 108.

SelfSensing Modulating Pump Controller (MPC)

For parallel pumping configurations, the MPC can operate 2 to 4 pumps for maximum efficiency. It provides a single building automation systems connection in either BACnet MSTP or Modbus RTU and is enclosed in a NEMA 4X certified enclosure.

Mechanical / hydraulic

The CI Series pumps feature a close-coupled, end-suction design with robust construction.

Design Features

• 1/4 NPT pressure tapping on suction and discharge connections.
• Top center line discharge design simplifies piping layouts, reduces piping strain, and makes the pump self-venting.
• Cast iron casing with integrally cast feet for sturdy installation, allowing back pull out without disturbing piping.
• Rear pullout design for servicing without disturbing system piping.
• 1/4 NPT casing drain plug.
• Easy-to-replace, slip-on shaft sleeve.
• Impeller is hydraulically balanced by back vanes or balancing holes, dynamically balanced to ANSI Grade G6.3, and fitted to the shaft with a key.
• Close-coupled to a NEMA standard JM regreaseable motor.
• Dry shaft design prevents circulating fluid from contacting the shaft.
• Self-flushing seal design or a positive external seal flushing line.

Materials of Construction (Standard Pump Construction - Bronze Fitted)

• Casing: Cast Iron (ASTM A48/A48M-03 Class 30A) or Ductile Iron (ASTM A536-84 Grade 65-45-12)
• Cover: Cast Iron (ASTM A48/A48M-03 Class 30A) or Ductile Iron (ASTM A536-84 Grade 65-45-12)
• Impeller: Bronze (ASTM B584 ALLOY C83600 or C84400)
• Wear Ring (Optional): Bronze (ASTM B584-98A C92200)
• Shaft: Carbon Steel
• Shaft Sleeve: Bronze (ASTM B584-98A C92200)
• Mechanical Seal: Ceramic/EPT
• Seal Flush Line Assembly: Copper & Brass C3600

Materials of Construction (Optional - Stainless Steel Impeller)

• Casing: Cast Iron (ASTM A48/A48M-03 Class 30A) or Ductile Iron (ASTM A536-84 Grade 65-45-12)
• Cover: Cast Iron (ASTM A48/A48M-03 Class 30A) or Ductile Iron (ASTM A536-84 Grade 65-45-12)
• Impeller: Stainless Steel (ASTM A351/A351M-08)
• Wear Ring (Optional): Bronze (ASTM B584-98A C92200)
• Shaft: Carbon Steel
• Shaft Sleeve: Bronze (ASTM B584-98A C92200)
• Mechanical Seal: Ceramic/EPT
• Seal Flush Line Assembly: Copper & Brass C3600

Optional Mechanical Seal Materials

• Tungsten Carbide/EPT
• Silicon-Carbide/EPT

Performance curves are available for 1160 RPM, 1760 RPM, and 3500 RPM.

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Disclaimer: This summary is based solely on the provided text extract. It may not include all figures, footnotes, or the latest revisions present in the official OEM PDF datasheet. Contractual data for any project must always match the specific OEM PDF revision used for that project.

Official datasheet (PDF)

Lenntech datasheet mirror