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2-4CR Multi-stage centrifugal pumps

2-4CR Multi-stage centrifugal pumps
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2÷4CR Multi-stage centrifugal pumps PERFORMANCE RANGE •• Flow rate up to 120 l/min (7.2 m³/h) •• Head up to 50 m APPLICATION LIMITS •• Manometric suction lift up to 7 m •• Liquid temperature between -10 °C and +40 °C •• Ambient temperature up to +40 °C •• Max. working pressure 6 bar •• Continuous service S1 CONSTRUCTION AND SAFETY STANDARDS EN 60335-1 IEC 60335-1 CEI 61-150 INSTALLATION AND USE Suitable for use with clean water and liquids that are not chemically aggressive towards the materials from which the pump is made. As a result of their quietness, these pumps are widely used in domestic applications such as the distribution of water in combination with small and medium sized pressure sets, and for the irrigation of gardens and allotments, etc. The pump should be installed in an enclosed environment, or at least sheltered from inclement weather. OPTIONALS AVAILABLE ON REQUEST •• Pump body with NPT ANSI B 1.20.1 threaded ports •• Special mechanical seal •• Other voltages GUARANTEE 2 years subject to terms and conditions

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CHARACTERISTIC CURVES AND PERFORMANCE DATA 60 Hz n= 3450 1/min HS= 0 m Q = Flow rate H = Total manometric head HS = Suction height Tolerance of characteristic curves in compliance with EN ISO 9906 Grade 3.

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CONSTRUCTION CHARACTERISTICS PUMP BODY Stainless steel AISI 304, complete with threaded ports in compliance with ISO 228/1 BODY BACKPLATE Stainless steel AISI 304 MOTOR SHAFT MECHANICAL SEAL BEARINGS CAPACITOR Rotational ring Materials Stationary ring ELECTRIC MOTOR 2÷4CRm: single-phase 220 V - 60 Hz with thermal overload protector built-in to the winding. 2÷4CR: three-phase 220/380 V - 60 Hz or 220/440 V - 60 Hz. ➠ Pumps fitted with the three-phase motor option offer IE2 (IEC 60034-30) class high performance – Insulation: F class. – Protection: IP X4.

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