Wilo TOP-Z 20/4 3-f, Circulation Pump

Description

This circulation pump is only intended for tap water. Can be used for VVC installations in industry and in Building Services. Circulation pump with wet motor with screw connection or flange connection, adjustable speed steps for capacity adjustment.

Hydraulic Data

• Maximum operating pressure PN: 10 bar
• Call height max. H Qmin: 3.6 m
• Flow max. Qmax: 4 m³/h
• Max. medium temperature in HVAC use Tmax: 65 °C
• Max. medium temperature for drinking water Tmax: 65°C
• Max. medium temperature for drinking water in short-term operation 2h Tmax: 80 °C
• Max. ambient temperature Tmax: 40 °C
• Max. permissible degree of hardness in the VVC system: 3.57 mmol/l (20 °dH) (3.21 mmol/l (18 °dH) for 20/4 + 25/6)

Engine Data

• Mains connection: 1~400 V, 50 Hz
• Rated power P2: 60 W
• Rated current IN: 0.35 A
• RPM max. nmax: 2850 rpm
• Input power (min) P1 min: 35W
• Power consumption P1 max: 100 W
• Interference emission: EN 61000-6-3
• Interference stability: EN 61000-6-2
• Protection class motor: IPX4D
• Insulation class: H
• Cable gland: 1xPG13.5
• Motor protection: Impedance protection WSK

Material

• Pump housing: stainless steel
• Impeller: PPE-GF30
• Shaft: Oxidized ceramic
• Material bearing: Carbon, plastic impregnated

Installation Dimensions

• Pipe connection on the suction side: G 1¼
• Pipe connection on the pressure side: G 1¼
• Construction length l0: 150 mm

Measure

• Length: 150 mm
• Height: 216 mm
• Width: 140 mm