Centrifugal pump CKR series

waterwith asynchronous motornormal priming

Overview
The CKR series are three-speed circulating electric pumps with wet rotor designed to pump warm liquids without suspended abrasives, non-explosive and non-aggressive for the pump materials (glycol up to 30%). Liquid temperature range: 5 °C ÷ 110 °C. Maximum ambient temperature: 35 °C.

Applications

• Installation into industrial machines
• Cooling plants, air-conditioning and circulating systems

Construction

• Pump body: Cast iron G20 with anti-corrosive coating
• Rotor sleeve and motor flange: Stainless steel AISI 303
• Pump shaft: Stainless steel AISI 420
• Impeller: Techno-polymer
• Bearings: Graphite

MOTOR
The drive motors are asynchronous, squirrel-cage type, closed, with external ventilation. Single-phase models include built-in motor protection and permanent capacitor. Motor protection for three-phase models must be installed by the customer. Use equipment compliant with current standards. Insulation class: H (note: 200 for sizes 32-60-180, 32-100-180 and 36-80-200). Duty: S1. Protection rating: IP 44.

Technical specifications

• Series: CKR
• Operation: Three-speed circulating electric pumps with wet rotor
• Suitable liquids: Warm liquids without suspended abrasives; non-explosive and non-aggressive to pump materials (glycol up to 30%)
• Liquid temperature range: 5 °C ÷ 110 °C
• Maximum ambient temperature: 35 °C
• Pump body material: Cast iron G20 with anti-corrosive coating
• Rotor sleeve and motor flange material: Stainless steel AISI 303
• Pump shaft material: Stainless steel AISI 420
• Impeller material: Techno-polymer
• Bearings: Graphite
• Motor type: Asynchronous, squirrel-cage, closed, external ventilation
• Single-phase models: Built-in motor protection and permanent capacitor
• Three-phase models: Motor protection to be provided by the customer
• Insulation class: H (200 for sizes: 32-60-180; 32-100-180; 36-80-200)
• Duty: S1
• Protection rating: IP 44