Lowara 500 litre vertical pressure vessel - UK1100050027

Name: Lowara 500 litre vertical pressure vessel - UK1100050027
Brand: Lowara
SKU: 8054-lowara-500-litre
Price: 939.6 GBP
Availability: InStock

In stock

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Established 1975
Trusted by thousands of customers

The Lowara 500 litre vertical pressure vessel (UK1100050027) is a 500 litre diaphragm vessel rated to 10 bar, for vertical floor-standing mounting on feet. It stores water under pressure for water booster sets, heating pressurisation units and fill sets, at temperatures up to 70°C.

A replaceable WRAS-approved butyl diaphragm inside a carbon steel shell keeps the stored water away from the steel, so the vessel is suitable for drinking water. The diaphragm is fixed at the top and bottom so it cannot bend or rub against the shell, and the 1½″ G connection is on a stainless steel flange.

500 L

Capacity

10 bar

Max. pressure

1½″ G

Connection

70°C

Max. temperature

VerticalWRAS approvedPotable waterReplaceable diaphragmPart no. UK1100050027

Vessel size depends on the pump flow, the number of starts you want per hour and the pressure settings. Send us the pump model and set pressures and we’ll confirm the right size before you order.

Full Description

More about this product

Full Description

Key specifications

Model	Lowara 500 litre vertical
Lowara part no.	UK1100050027
Type	Diaphragm pressure vessel, vertical
Capacity	500 litres
Max. pressure	10 bar
Temperature range	0 to +70°C
Connection	1½″ G (stainless steel flange)
Diameter	750 mm
Height	1610 mm
Floor to connection	170 mm
Diaphragm	Butyl rubber, WRAS approved, replaceable
Shell	Carbon steel, epoxy coated, blue RAL 5015
Pre-charge	Factory pre-charged, 1.5–4 bar depending on size — adjust to suit the system
Approvals	WRAS approval nos. 1910011 and 1904031; factory tested and certified to the Pressure Equipment Directive

Features

Potable water

The water never touches the steel shell — suitable for drinking water.

Long diaphragm life

Fixed top and bottom, so the diaphragm cannot bend or rub against the shell.

Replaceable diaphragm

The butyl diaphragm can be changed rather than replacing the vessel.

Stainless flange

Stainless steel connection flange suits a wide range of applications.

Built for

Booster sets

Pressure storage that cuts pump starts.

Heating

Expansion in sealed heating systems.

Pressurisation

Fill sets and pressurisation units.

Water supply

Domestic and commercial water systems.

FAQs

Can it be used for drinking water?

Yes — the butyl diaphragm is WRAS approved and keeps the stored water away from the steel shell.

Do I need to adjust the pre-charge?

Usually — set it to suit your system with the vessel isolated and empty of water, before filling. For booster sets this is normally just below the pump start pressure.

How should it be installed?

Fit an isolating valve and a drain cock on the vessel connection so it can be isolated, drained and checked.

What is the maximum temperature?

Up to 70°C. For hotter systems ask us about a suitable vessel.

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.

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Frequently Asked Questions

Quick answers to common questions about the Lowara 500 litre vertical pressure vessel – UK1100050027. For technical specifications, see the product details above; for sizing or installation advice, contact our team. If you have any other questions, we're happy to help.

What is a pressure vessel used for in a pumping system?

A pressure vessel stores water under pressure, helping maintain supply and reduce unnecessary pump starts.

What is the difference between an accumulator and an expansion vessel?

Accumulators provide pressurised water storage, while expansion vessels accommodate volume changes caused by temperature; product suitability depends on system design.

How do I choose a pressure vessel?

Consider intended use, capacity, maximum working pressure, pre-charge requirements, installation orientation and potable-water suitability.