Single-stage glanded centrifugal pump in monobloc design for an installation on a base with integrated frequency converter for an electronic control for constant or variable differential pressure (Δp-c/Δp-v). The CronoBloc BL-E has been predominantly designed for pumping heating water (acc. to VDI 2035), cold water and water/glycol mixtures without abrasive substances in heating, air-conditioning and cooling systems.
Design
– Single-stage low-pressure centrifugal pump
– Spiral housing in monobloc design with flange and housing dimensions according to DIN EN 733, flanges PN 16 – according to EN 1092-2
– Low-oscillation and low-noise monobloc design with lantern, foot on pump housing and rigidly connected standard motor
– All grey cast iron components with cataphoretic coating as standard
– Direction-of-rotation-independent bellows mechanical seal with forced flushing and cavitation-reducing impeller.
– Mechanical seal for pumping water up to Tmax = +140 °C. A glycol admixture of 20% to 40% by volume is permissible up to T ≤ +40 °C. An alternative mechanical seal must be provided in water-glycol mixtures with glycol proportions > 40 % up to max. 50 % by volume and a fluid temperature of > +40 °C up to max. +120 °C or fluids other than water. When using water-glycol mixtures, the use of an S1 variant with a corresponding mechanical seal is generally recommended.
Standard equipment
Pump display for indication of:
– Control mode Δp-c (constant differential pressure), Δp-v (variable differential pressure), PID controller, n-constant (constant speed)
– Setpoint (e.g. differential pressure or speed)
– Error and warning messages
– Actual values (e.g. power consumption, actual value of the sensor)
– Operating data (e.g. operating hours, energy consumption)
– Status data (e.g. status of SSM and SBM relay)
– Device data (e.g. pump name)
– Operating mode (for Y-piece installation only: main/standby operation, parallel operation)
One-button manual operation level for:
– Pump On/Off
– Setpoint and speed adjustment
– Selecting the operation and control mode
– Configuration of operating parameters
– Fault acknowledgement
Additional functions
– Interfaces: Control input “Overriding Off”, analogue input 0–10 V, 2–10 V, 0–20 mA, 4–20 mA for constant speed (DDC) or for remote setpoint adjustment, IR interface for wireless communication with operating and service unit Wilo-IR-Monitor/IR-Stick, plug-in slot for Wilo IF modules for connecting to building automation, configurable, potential-free fault and run signal
– Three-phase AC motor with frequency converter
– Integrated dual pump management
– Integrated full motor protection (PTC thermistor sensor) with trip electronics
– Standard condensate drainage holes in the motor housing (closed upon delivery)
– Different operating modes for heating (HV) or air-conditioning (AC) applications
– Access disable on the pump
– Different operation levels: Standard/Service
Accessories
– Supporting blocks for fixing to the base
– IR-Monitor
– IR-Stick
– IF module PLR
– IF module LON
– IF module Modbus
– IF module BACnet
– IF module CAN
– Control systems VR-HVAC/CCe-HVAC/SCe-HVAC
– Differential pressure sensor (DDG) sets 0-10 V for pumps in version …-R1
Operating Data
Fluid media: Water 100 %
Fluid temperature: 20.00 °C
Requested flow:
Requested head:
Min. fluid temperature: -20 °C
Max. fluid temperature: 140 °C
Min. ambient temperature: 0 °C
Max. ambient temperature: 40 °C
Maximum operating pressure: 16 bar
Note on dimensioning: 16 bar to 120 °C, 13 bar to 140 °C
Minimum efficiency index (MEI): ≥ 0.4
Drive
Mains connection: 3~400V/50 Hz
Motor efficiency class: IE4
Power consumption: 6,300 W
Rated power: 5.5 kW
Max current: 10.2 A
Max. speed: 2,940 1/min
Emitted interference: EN 61800-3
Interference resistance: EN 61800-3
Insulation class: F
Protection class motor: IP55
Motor protection: PTC integrated
Materials
Pump housing: 5.1301, EN-GJL-250 cataphoretic-coated
Impeller: EN-GJL-200
Shaft: 1.4122
Shaft seal: AQ1EGG
Lantern: 5.1301/EN-GJL-250
Installation dimensions
Pipe connection on the suction side: DN 65, PN 16
Pipe connection on the discharge side: DN 40, PN 16
Ordering information
Brand: Wilo
Product description: BL-E40/125-5,5/2
Net weight, approx.: 98 kg
Article number: 2222442
