Wilo-TOP-Z

Wilo-TOP-Z - Throttleless Circulating Pump

Type of construction: Wilo-TOP-Z is a glandless circulating pump, available with threaded or flanged connections. The unit offers pre-selectable speed stages, allowing the pump's operation to be optimally adapted to changing system parameters.

Application

The Wilo-TOP-Z pump is dedicated to hot water circulation systems used in both technice buildings and industrial applications. It is ideal for systems where efficient heat retention and continuous circulation of the medium are required.

Equipment and Features

• Types of operation: The pump allows you to switch speed stages (3 degrees) using a dial, allowing you to fine-tune performance.
• Automatic functions: Built-in protection against unacceptably high winding temperature (applies to P2 pumps < 180 W or optionally with SK 602N/SK 622N control units) and winding protection contact (WSK) on P2 models ≥ 180 W. A rotational direction indicator light is also available on 3-phase pumps.
• Accessories: For flanged pumps, different flange versions (standard or special) are available, and the power cable can be supplied from both sides of the electrical box (for 1-phase and 3-phase pumps with P2 ≥ 180 W). The pump is equipped with thermal insulation as standard.

Type Designation

Example designation: Wilo-TOP-Z 40/7

• TOP - standard pump, available as version with threaded or flanged connection,
• -Z - single pump for hot water circulation,
• 40/ - nominal diameter of the connection,
• 7 - range of head [m] at flow rate Q = 0 m³/h.

Technical data

• Permissible temperature range: TOP-Z 20/4 and TOP-Z 25/6 models - domestic water with hardness up to 3.21 mmol/l (18°dH): max. +65°C, short-term (2 h) up to +80°C; from TOP-Z 25/10 - domestic water up to 3.57 mmol/l (20°dH): max. +80°C, short-term (2 h) up to +110°C.
• Supply voltage: 1~230 V, 50 Hz; 3~230 V, 50 Hz (optional switching plug) or 3~400 V, 50 Hz - depending on type.
• Degree of protection: IP X4D.
• Connection: Threaded or flanged (Rp ¾ to DN 80) - depending on version.
• Maximum operating pressure: In standard version 6/10 bar or 6 bar; in special versions up to 10 bar or 16 bar.

Materials

• Pump body: Made of various materials such as stainless steel, bronze or gray cast iron - depending on the type.
• Impeller: Made of plastic.
• Shaft: Made of stainless steel or ceramic material.
• Bearing: Sintered carbon, impregnated with resin.

Scope of Delivery

• Wilo-TOP-Z pump,
• Thermal insulation,
• Gaskets (in case of threaded connection),
• Washers for flange bolts (for connections from DN 40 to DN 65),
• Installation and operating instructions.

Options and Accessories

• Options: Special versions for working pressure PN 16 (at an extra charge) and special version for other voltages.
• Accessories: Threaded couplings at the threaded connection, equalizing elements, Wilo-SK 601N timer controller, and Wilo SK 602N/SK 622N tripping device for full motor protection (for 3~400 V or 1~230 V pumps with appropriate configuration).

For professionals who value precision, reliability and advanced control functions in hot water circulation systems, Wilo-TOP-Z is an excellent choice. Explore the full offer at sps24.eu - the place where you will find modern hydraulic solutions of the highest quality.