Lowara Pressurisation Sets
Lowara Presfix Beta 255 (Medium Pressure Twin Pump, max F/P 5.5 bar) UKBETA200HL55/A
- Established 1975
- Trusted by thousands of customers
The Lowara Presfix Beta 255 (UKBETA200HL55/A) is a twin-pump pressurisation unit for sealed heating and chilled water systems, with a maximum fill pressure of 5.5 bar. It tops up water lost through leakage and holds the system design fill pressure in line with BS 7074 parts 1, 2 and 3.
Twin-pump units rotate the duty pump automatically and change over to the standby pump if the duty pump fails. High and low pressure contacts lock out the boiler or chiller, and volt-free contacts link to a BMS.
More about this product
The Lowara Presfix Beta 255 (UKBETA200HL55/A) is a twin-pump pressurisation unit for sealed heating and chilled water systems, with a maximum fill pressure of 5.5 bar. It tops up water lost through leakage and holds the system design fill pressure in line with BS 7074 parts 1, 2 and 3.
Twin-pump units rotate the duty pump automatically and change over to the standby pump if the duty pump fails. High and low pressure contacts lock out the boiler or chiller, and volt-free contacts link to a BMS.
Key specifications
| Model | Lowara Presfix Beta 255 |
| Part no. | UKBETA200HL55/A |
| Type | Packaged twin-pump pressurisation unit |
| Max. fill pressure | 5.5 bar |
| Pumps | 2 — horizontal peripheral pumps with bronze/composite body and impeller and self-adjusting mechanical seals |
| Motor | 0.37 kW per pump |
| Input current | 3.2 A |
| Pre-fuse | 10 A |
| Supply | 230 V 50 Hz single-phase |
| Break tank | 18 litre polyethylene break tank with weir and clip-tight lid, 15 mm ball valve to BS1212 part 2 giving a type AB air gap |
| Overflow | 22 mm (plastic) |
| Internal vessel | 2 litre steel, to BS4814, electronically assisted anti-bounce |
| Control panel | IP54, MCB-protected motors |
| Pipework | Nylon 4–10 mm |
| Volt-free contact rating | 50 V AC, 3 A |
| Construction | Enclosed powder-coated steel cabinet with separate sections for the controls and the hydraulics |
| Weight | 46 kg |
| Standards | BS 7074 parts 1–3; Water Supply (Water Fittings) Regulations 1999; Machinery Directive; EMC Directive |
| Supplied with | Double check valve for the mains water supply |
Features
Built for
FAQs
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Data Sheet PDFDownload
Standard delivery:
Standard delivery is free on most orders. Some items may incur a delivery charge depending on weight, size or value. Any applicable charge will be displayed at checkout.
Deliveries will typically be made between 7am and 6pm, Monday to Friday (excluding public holidays).
Next day delivery:
Next working day delivery is available for a £16.50 + VAT delivery charge.
Orders must be placed before 12 noon to qualify for next working day delivery. Orders placed after 12 noon on Thursday but before noon on Friday will be delivered the following Monday. Orders placed after 12 noon on Friday will be delivered on Tuesday.
Pallet/Large/Difficult items:
Some large, heavy or difficult to transport items may incur an additional delivery charge. Please contact us for a delivery quote before ordering.
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Presfix pressurisation units are designed to replace water that has been lost through system leakage and to maintain the system design fill pressure in sealed…