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Circulation pump HALM Hep 25-4 E 180 View larger

Circulation pump HALM Hep 25-4 E 180

HA34204.5

New product

High efficiency circulation pump, electronically controlled

More details

175,20 € tax incl.

More info

Connection pipe: 1"
Threaded connection: 1 1/2"
Installation length: 180 mm
P1: 4 ... 23 W
In ... 0.3 A
Weight: 2.7 kg
Eff.-Klasse: A
Protection class:  IP 42
Insulation class:  F
Nominal pressure:   PN 10
Control:  ∆p or fixed rpm
EEI:  ≤0,20 HEP XX-4.0 EXX
       ≤0,23 HEP XX-6.0 EXX

Product features
• compact design
• manual start-up feature
• smooth running
• very low energy consumption
• integrated night economy feature
• air-vent screw
• convenient operation
• pre-mounted, screwable angle entry-plug
• space-saving axially integrated terminal box
• automatic adjustment to pressure conditions
• KTL coated pump housing

Use
The electronically controlled HEP high efficiency wet rotor circulators with permanent magnet technology are designed for use in heating systems with variable or constant rate of flow.

Mode of operation ∆p control
When thermostatic valves in heating systems close, the volume flow drops. This results in slight pipe resistance. The declining flow rate means that the circulation pump requires a lower pressure head. This is identified by the automatic control of the circulation pump. It automatically adjusts to the system and reduces its performance. This leads to not only trouble-free and quiet operation but also reduces energy consumption to a minimum.

Main areas of use
Heating, air-conditioning and industry systems as
• dual pipe system
• underfloor heating
• boiler / primary circuit
• storage charging circuit
• solar systems and heating pumps

Flow media
• heating water as per VDI 2035
• pure, thin, non-aggressive and non-explosive, mineral oil-free media without solid or long-fibre components
• media with a max. viscosity of 10 mm² / s
• operating data must be checked above 20 % glycol

Temperature range
Ambient temperature: 0 °C to 40 °C
Temperature class: TF 95
Media temperature: +2 °C to 95 °C

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