Trebles - Pressbox - Pressurisation Unit - Twin Pump - 3.5 Bar.

Name: Trebles - Pressbox - Pressurisation Unit - Twin Pump - 3.5 Bar.
Brand: Trebles
SKU: 5231-230
Price: 2031.96 GBP
Availability: InStock

Part Number:

5231-230

The Trebles Pressbox 5231-230 is a twin pump, 3.5 Bar pressurisation unit engineered for sealed system pressure control, incorporating an 18Ltr Cat 5 break tank and digital BMS controller within a compact, EasyMount-compatible aluminium enclosure.

View Description | Data Sheet(s)

This item is now obsolete. Please view our alternatives below.

£2,902.80 RRP £2,031.96 £1,693.30

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Description

Designed to maintain optimal hydraulic pressure within sealed water systems, the Trebles Pressbox 5231-230 is a compact twin pump pressurisation unit rated to 3.5 Bar. Housed within a lightweight aluminium enclosure and supplied with the EasyMount wall bracket as standard, it offers a higher integrated tank capacity than comparable wall-mounted-only units while remaining straightforward to install and commission.

The integrated digital controller supports BMS connectivity via 2 standard contacts, with a common alarm and a fully programmable alarm configurable to suit individual system and site requirements.

Wall bracket and EasyMount system included as standard
Floor or wall mountable — flexible installation options
Category 5 AB Air Gap protection for potable water compliance
Integrated 18Ltr break tank for reliable system make-up
WRAS Approved inlet valve
Digital controller with BMS output
Auto-changeover and pump pulse functionality
Dry run, flood, and password protection
2 Year Guarantee

Key Product Features

Twin pump pressurisation unit
Maximum operating pressure: 3.5 Bar
Lightweight aluminium enclosure
18Ltr Category 5 break tank with AB Air Gap
WRAS Approved inlet valve
Digital controller with 2-contact BMS output
Programmable alarm and auto-changeover
Pump pulse, dry run, flood, and password protection
Wall and floor mountable
2 Year manufacturer's guarantee

Trebles is a leading UK manufacturer of pressurisation and water boosting equipment, specialising in compact packaged systems for commercial and domestic sealed water installations. For further information visit Trebles or contact the Pumpify sales team.

More Information
Price	£1,693.30
Manufacturer	Trebles
Number of Pumps	2
Warranty	2 years guarantee
Bars	3.5 bar
Electrical supply	230V
Capacity	18Ltr
Duty Type	Commercial
Pump Type Filter	Pressurisation Unit
Approvals	WRAS Approved
Next Day Delivery	Yes
Connection Size	15mm Compression
Manufacturers Part Number	5231-230

Data Sheet(s)

Delivery & Returns

Delivery and returns

At Pumpify, we make getting the right pump quick and straightforward.

We offer free standard delivery (2–3 working days) to mainland UK* on all pumps, spares, and accessories over £50 (ex VAT). Orders under £50 are sent on the same service for just £6.95.

Need it faster? No problem. Pumpify offers a range of next working day* delivery options, so you can choose the speed that suits the job. Just be sure to place your order before 3:30pm, Monday to Friday.

*Excludes UK Islands, Northern Ireland and Scottish Highlands.

UK Delivery Options (Orders Over £50)		UK Delivery Options (Orders Under £50)
Standard (2–3 working days)	FREE	Standard (2–3 working days)	£6.95
Next Working Day	£14.50	Next Working Day	£16.45
Next Working Day before 12:00pm	£25.00	Next Working Day before 12:00pm	£25.00
Next Working Day before 9:00am	£50.00	Next Working Day before 9:00am	£50.00
Scottish Highlands Standard	£17.50	Scottish Highlands Standard	£17.50
UK Islands & N. Ireland Standard	£60.00	UK Islands & N. Ireland Standard	£60.00

Republic of Ireland Deliveries

We can arrange delivery to the Republic of Ireland on request.
Due to additional post-Brexit requirements, these orders need to be placed directly with our customer support team:

0808 281 5795

Courier Companies

FedEx handles most small to medium parcels

Palletforce and other trusted pallet couriers are used for larger or heavier items

We always choose the most reliable option for your order.

Next Working Day Delivery

When a pump goes down, waiting isn’t an option. That’s why Pumpify offers Next Working Day Delivery on a wide range of pumps, spares, and accessories, to help keep your projects moving.

While we do everything we can to meet next-day delivery times, availability may occasionally change due to stock levels, transport schedules, or processing constraints. If this happens, the option may be removed at checkout or adjusted after ordering.

If anything changes, we’ll keep you informed and make sure your order reaches you as quickly as possible.