Lowara Presfix Beta 128

Quick Overview

  • Presfix Beta enclosed microprocessor set
  • Part no: UKBETA100HL28/A
  • Family code: 5G
  • Single pump
  • Max F/P 2.8 bar
  • Weight: 36kg
Check the datasheets in the downloads tab below for comprehensive information before you order
Please ensure you are ordering the correct pump/phase as restocking charges may apply. Please call us on 01322 292 415 to check current delivery times.
Excl. Tax: £1,113.00 Incl. Tax: £1,335.60
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The Presfix Beta 128 pressurisation set from Lowara have been designed to replace water that has been lost through system leakage and to maintain the system design fill pressure in sealed heating and chilled water systems. The Presfix Beta 128 unit also provides safety circuits locking out the boiler / chiller in the advent of high/ low pressures occurring.


Presfix Beta 128  units are perfect for either domestic or industrial environments. The Presfix Beta 128 provides volt free contacts that can be used to interface with either a Business Management System or any other type of monitoring system. Presfix units have flow limiting devices to help prevent plant rooms from flooding in the advent of system pipe/fitting failure.


  • Mains door interlocked disconnect switch. 
  • Auto/Manual/Off selector switch. 
  • Back lit digital display. 
  • Control panel section IP 54. 
  • MCB protected motors. 
  • Simple set point adjustment. 
  • Parameter lock. 
  • Remote inhibit. 
  • Delay start. 
  • Exercise regime. 
  • Break tank low water monitoring. 
  • Transducer controlled. 
  • High/Low pressure contacts for boiler/chiller interlock. 
  • Anti-bounce internal vessel 2lt electronically assisted. 
  • Isolating valves on each pump.
  • Hours run for each pump
LED indicators for :
  • Pump run each pump. 
  • Pump trip each pump. 
  • Low pressure. 
  • High pressure. 
  • Duty pump failed. 
  • Excessive run time. 
  • Break tank Low water. 
  • Back lit display provides indication of power on.
  • Open frame units have base plates manufactured from 14SWG galvanised steel and are suitable for floor mounting.
  • All pumps are horizontal peripheral type with bronze body and impeller and are fitted with self adjusting mechanical seals.
  • Break tank:  Manufactured from Polyethylene with an 18lt active capacity complete with weir and clip tight lid.
  • Ball valve: 15mm to BS1212 part 2 constructed to give a type AB air gap in accordance with the water regulations 1999. Overflow 22mm (plastic).
  • Pipework: Nylon 4-10mm 
  • Internal vessel: Fixed diaphragm 2/5lt steel construction complying with BS4814

Electrical specification

  • Supply voltage: 230V 50Hz 1Ph 
  • Volt free contact rating: 50V AC 3A
  • Motor size: 0.2kW
  • Input current: 1.0A
  • Pre-fuse: 10A

Product Attachments

View FileLowara Presfix Pressurisation Units    Size: (1.5 MB)