CronoBloc-BL is a glanded pump in block design with flange connection designed for pumping large quantities of hot and cold water, including high-rise building applications.

Its low life cycle cost is the result of optimised hydraulic efficiencies combined with corrosion-resistant cataphoretic coatings, which ensure an economical and long service life.

Over 200 product variants in the series cater for a wide range of applications.

Applications

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

Key features

Reduced life cycle costs due to optimised efficiency.
High corrosion protection due to cataphoretic coating of the cast iron components.
Standard condensate drainage holes in the motor housings.
High-efficiency motors as standard; from 0.75 kW nominal motor power: motors with IE2 technology.
Meets user requirements due to performance and main dimensions in accordance with EN 733 (DIN for norm pumps).
Easy to install due to standard pump support feet and optional supporting blocks.

Technical data

Minimum Efficiency Index (MEI) ≥ 0.4
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)

Product description

Single-stage low-pressure centrifugal pump in block design, with an axial suction port and a radially arranged pressure port, along with:

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

Materials, as standard

Pump housing and lantern: Standard: EN-GJL-250
Impeller: Standard: EN-GJL-200
Shaft: 1.4122
Mechanical seal: AQEGG

Options

...-L1 variant with bronze impeller (at additional charge)
…-L4 variant with stainless steel impeller (at additional charge)
...-H1 variant with housing made of spheroidal cast iron (at additional charge)
Other voltages and frequencies as well as ATEX approval on request
Other mechanical seals on request

Accessories

Bases (pump housing and motor) for installation on a base
PTC thermistor sensor, PTC thermistor tripping relay
Special motors
Special mechanical seals
SC-HVAC, CC-HVAC control systems and switchgears

CronoBloc-BL monobloc pump

HVAC / circulating pumps - products from other companies

HVAC / circulating pumps - companies

Sign up to receive the free BUILDING SERVICES bulletin