Your advantages

• Energy-efficient due to state-of-the-art pump hydraulics and the use of IE3 motors
• Cataphoretic coating of all cast iron components ensures high resistance to corrosion and long service life
• Universal use in diverse applications thanks to different impeller materials, several motor options as well as different mechanical seals
• Easy installation due to standard pump support feet and optional supporting blocks
• Easy maintenance and user-friendly design with optional “back pull-out” design and cartridge mechanical seal for large pump types

Wilo-CronoBloc BL – The reliable glanded pump with drinking water approval and high efficiency

The legal requirements and regulations pertaining to drinking water are becoming ever more stringent, especially in highly-developed countries. Increasing demands are therefore being placed on the materials in the pumps and systems that are used. At the same time, global megatrends such as urbanisation are escalating the need to rely on ever more efficient systems. The Wilo-CronoBloc is our solution due to its high efficiency and drinking water approval.

Construction

Glanded pump in block design with flange connection

Application

For pumping heating water (in accordance with VDI 2035), water-glycol mixtures, cooling water and cold water without abrasive substances in heating, cold water and cooling water systems.

Scope of delivery

• Pump
• Installation and operating instructions

Type key

Technical data

• Permissible temperature range of -20 °C to +140 °C
• Mains connection 3~400 V, 50 Hz (others on request)
• Protection class IP55
• Nominal diameter DN 32 to DN 150
• Max. operating pressure 16 bar (optionally 25 bar on request)

Materials

• Pump housing and lantern: Standard: EN-GJL-250; optional: Spheroidal cast iron EN-GJS-400-18-LT (depending on type)
• Impeller: Standard: EN-GJL-200; special version: Bronze CuSn 10 stainless steel 1.4408 (depending on type)
• Shaft: 1.4122
• Mechanical seal: AQEGG; other mechanical seals on request

Description/construction

Single-stage low-pressure centrifugal pump in monobloc design, with axial suction port and radially arranged pressure port with

• Mechanical seal
• Flange connection with pressure measuring connection R ¹/8
• Lantern
• Coupling
• IEC standard motor