Circulation pumps for heating systems and underflo

Application

Glandless circulation pumps Wilo Star-RS with threaded connection Circulation pump with wet rotor and threaded connection. Preset speed stages for power adjustment.

Materials:

• Pump housing: gray cast iron;
• Impeller: reinforced polypropylene;
• Pump shaft: stainless steel;
• Bearings: metal-graphite.

Designation

Example: Wilo- Star-RS 25 /4-130

• Star-RS -circulating pump with wet rotor for burning systems;
• 25 /-connection diameter, mm;
• 4 -maximum pump head, m;
• 130 -assembly length, mm.

Specifications

• Threaded connection Rp ½, Rp 1, Rp 1 ¼;
• Motor speed selector (3 steps) to select the optimal pump power;
• Simple and safe installation thanks to the key on the pump body;
• Terminal box with cable routing power supply on both sides;
• Simplified connection of electrical wires when using spring terminals;
• Resistant to blocking currents;
• Nominal pressure: PN10;
• Protection class: IP 44;
• Permissible temperature range of the coolant: -10 ... +110 ° C;
• Electrical connection: 1 ~ 230V, 50Hz.