CronoNorm-NLG

Design

Application

• Pumping of heating water (acc. to VDI 2035), chilled water and water/glycol mixtures without abrasive substances in heating, chilled water and cooling systems.
• Applications for irrigation, building services, general industry, power stations, etc.

Equipment/function

Single-stage low-pressure centrifugal pump in close-coupled design with coupling, coupling guard, motor and baseplate

• Mechanical shaft seal or stuffing box

Type key

Technical data

• Permissible temperature range -20°C to +120°C
• Mains connection 3~400 V, 50 Hz
• IP rating: IP55
• Nominal diameter DN 150 to DN 300
• Max. operating pressure 16 bar

Materials

• Pump housing and pressure lid: EN-GJS-500-7
• Bearing bracket: EN-GJL-250
• Impeller: EN-GJL-250(special version: G-CuSn10)
• Shaft: 1.4028
• Stationary wear rings: G-CuSn10
• Mechanical seal: AQ1EGG;(other mechanical seals on request)

Construction

• Single-stage horizontal spiral housing pump with bearing bracket and exchangeable stationary wear rings in process design
• Shaft seal using mechanical shaft seals in accordance with EN 12756 or packing stuffing box
• Spiral housing with cast pump bases. Bearing of the pump shaft using greased grooved ball bearing
• Shaft coupling with intermediate sleeve

Scope of delivery

• Pump
• Installation and operating instructions
• Pump with free shaft end or
• Pump on baseplate with coupling and coupling guard or
• Completely mounted pump on baseplate with electric motor

Options

• Other materials and versions on request
• Other voltages and frequencies available on request.