Top-Z
Potable water circulation pumps with three-speed control for commercial and building services applications.
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Description
The Wilo-TOP-Z is a glandless circulation pump designed specifically for domestic hot water circulation systems in industrial and building services applications.
Available with screwed or flange connections, the TOP-Z range offers three pre-selectable speed stages for straightforward manual adjustment of pump performance. Thermal insulation is supplied as standard, helping to reduce heat loss from the pump and improve overall system efficiency.
The range is available in a variety of configurations to suit different installation requirements, with models offering different connection types, materials and performance characteristics.
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Applications
The Wilo-TOP-Z range is suitable for:
- Domestic hot water circulation systems in industry
- Domestic hot water circulation in building services
- Potable water circulation systems
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Features
- Three pre-selectable speed stages
- Manual power adjustment
- Glandless pump design
- Thermal insulation supplied as standard
- Screwed or flange connections depending on model
- Combination flange PN 6/PN 10 for DN 40 to DN 65 models
- Available in a range of configurations to suit different applications
- Designed for domestic hot water circulation
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Materials
Pump housing: Stainless steel, red brass or grey cast iron (depending on type)
Impeller: Plastic
Shaft: Stainless steel or ceramic (depending on type)
Bearing: Carbon, synthetic resin impregnated -
Specifications
Specification Details Permissible temperature range TOP-Z 20/4 and 25/6: max. +65°C (+80°C for up to 2 hours), drinking water up to 3.21 mmol/l (18°dH) From TOP-Z 25/10: max. +80°C (+110°C for up to 2 hours), drinking water up to 3.57 mmol/l (20°dH)
Mains connection 1~230V, 50Hz (depending on type); 3~230V, 50Hz with optional switching plug; 3~400V, 50Hz Protection class IP X4D Connection Screwed or flange connection, depending on type, Rp ¾ to DN 80 Maximum operating pressure Standard version: 6/10 bar or 6 bar; special versions: 10 bar or 16 bar -
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