Name: Lowara Presfix Beta 255 Dual System (max F/P 5.5 bar) UKBETA200DS55/A 135A01014
Brand: Lowara
SKU: UKBETA200DS55/A
Price: 3607.97 GBP
Availability: InStock

Lowara Presfix Beta 255 Dual System (max F/P 5.5 bar) UKBETA200DS55/A 135A01014

In stock

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Established 1975
Trusted by thousands of customers

The Lowara Presfix Beta 255 Dual System (UKBETA200DS55/A, Xylem code 135A01014) is a dual-system 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.

The dual-system unit manages two independent systems from one cabinet, with a separate display for each. Both systems share the same fill pressure; all other set points are independent, and each system has a duty and a standby pump available to it.

5.5 bar

Max. fill pressure

Twin

Pumps

0.37 kW

Motor

230 V 1~

Supply

Presfix BetaDual systemBS 7074Type AB air gapPart no. UKBETA200DS55/A

Pressurisation units are sized on the static height of the building, the system volume and the working pressure. Send us those details and we’ll confirm the unit and the expansion vessel size before you order.

Full Description

More about this product

Full Description

Key specifications

Model	Lowara Presfix Beta 255 Dual System
Part no.	UKBETA200DS55/A (Xylem 135A01014)
Type	Packaged dual-system 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

Microprocessor control

Backlit digital display, simple set-point adjustment, parameter lock, remote inhibit and delay start.

Safe isolation

Door-interlocked mains disconnect and Auto/Manual/Off selector.

Monitoring

Break tank low-water monitoring, hours run for each pump and an exercise regime.

Alarms

LEDs and volt-free contacts for pump run and trip, high and low pressure, excessive run time and low break tank.

Built for

Heating

Sealed LTHW heating systems.

Chilled water

Sealed chilled water and closed condenser systems.

Commercial

Schools, offices, hospitals and plant rooms.

Domestic

Larger sealed domestic systems.

FAQs

What fill pressure do I need?

Set the duty pump cut-in to the static height of the building plus about 0.35 bar. This unit fills up to 5.5 bar.

Is an expansion vessel included?

No — membrane expansion vessels are supplied separately and sized to BS 7074. Send us the static height, system volume, flow and return temperatures, glycol content and final working pressure and we’ll size it.

Can it be used to fill the system?

No — fill the system first and vent all air. The unit then tops up small losses and maintains pressure.

Does it meet the Water Regulations?

Yes — the break tank gives a type AB air gap, and a double check valve is supplied for the mains supply.

Additional Information

Downloads

Data Sheet PDF
Download

Delivery Information

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.

More about this product

Key specifications

Features

Built for

FAQs

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