Zilmet - Cal-Pro Squared Expansion Vessel - 4 Bar. - 35Ltr

Name: Zilmet - Cal-Pro Squared Expansion Vessel - 4 Bar. - 35Ltr
Brand: Zilmet
SKU: ZI-1300003503
Price: 90.06 GBP
Availability: InStock

Part Number:

ZI-1300003503

Zilmet - Cal-Pro Squared Expansion Vessel - 4 Bar. - 35Ltr Zilmet CAL-PRO expansion vessels are designed for sealed heating systems to absorb thermal expansion as water temperature increases.

View Description | Data Sheet(s)

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£150.11 RRP £90.06 £75.05

Free Standard Delivery

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Description

Zilmet - Cal-Pro Squared Expansion Vessel - 4 Bar. - 35Ltr

Zilmet CAL-PRO expansion vessels are designed for sealed heating systems to absorb thermal expansion as water temperature increases. The vessel stabilises system pressure and helps protect boilers, pumps, and pipework from pressure fluctuations.

Constructed from durable carbon steel and fitted with a high-quality synthetic diaphragm manufactured in accordance with DIN standards, CAL-PRO vessels provide dependable long-term performance in domestic and commercial central heating installations.

Key Product Features

Operating pressure: 4 Bar.
Capacity: 35 Ltr.
Orientation: Squared.

Zilmet (est. 1955) is an Italian manufacturer specialising in expansion vessels and pressure tanks. Their ranges support potable water boosting, heating systems and solar thermal installations. Typical applications include stabilising pressure, protecting equipment and supporting safe operation in domestic and commercial plumbing systems.

More Information
Price	£75.05
Manufacturer	Zilmet
Warranty	1 year guarantee
Dimensions	Diameter: 404mm x Height: 408mm
Bars	4 bar
Capacity	35Ltr
Duty Type	Domestic
Pump Type Filter	Pressure Vessel
Layout	Vertical
Diameter	404mm
Height	387mm
Next Day Delivery	No
Connection Size	3/4 inch
Manufacturers Part Number	1300003503

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.