Zilmet Oem Pro Heating Expansion Vessel For Boiler

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Zilmet Oem Pro Heating Expansion Vessel For Boiler


Estimated Delivery:

1 to 2 Working Days ✝FREE
Orders placed before 1pm are processed the same day, delivery times are between 8am & 6pm Monday to Friday, all deliveries require a signature, for delivery instructions please use the notes section during checkout.
Please see below for Items you will also require for this product.

Availability: In stock

Price From:

Regular Price: £54.76

£33.36 (inc VAT)

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✝ Subject to stock availability. UK Mainland only. Delivery fees and times to Northern Ireland, Scottish Highlands & Isles, Isle of Man, Isle of Wight, Isles of Scilly, and the Channel Isles may vary. Deliveries are made during working days only.

Product Description


Zilmet wide range of vessels (shapes, capacity, connection and attachment systems) of the Oem Pro system makes it easy to match the specific requirements of boiler manufacturers. Oem Pro system includes high quality and compact expansion vessels for the sanitary circuits of boilers.

Working:In a closed heating system, water cannot be compressed and an increase in water volume due to the increase in its temperature is absorbed by the expansion vessel. When water is cold, the precharge pressure of the tank presses the diaphragm against the tank. As temperature increases, the expanded water volume pushes against the membrane and water enters the tank, providing additional space to the system. With the temperature decrease, the air cushion forces water back into the system. This permits the system to maintain the pressure, helping to reduce the energy consumption of the heating system.

Technical Features:

Crimped or welded carbon steel shells. Synthetic SBR rubber according to DIN 4807-3 norms is suitable to every capacity for maximizing tank drawdown. Vessels are painted externally with long-lasting epoxy polyester powder coating and are 100% factory-tested.

  • High quality and compact heating expansion vessel suitable for boilers
  • Flat and round, crimped or welded carbon steel shell
  • Synthetic SBR rubber
  • Maximum working pressure: 3 bar/ 8 bar/10 bar
  • Maximum operating temperature: 90°C
  • Factory pre-charge: 1±20% bar/3.5 bar
  • Colour: Red/Silver
  • Guarantee : 1 Year

Technical Information

Additional Information

Oil Tank Material Carbon Steel


Here at TradePlumbing.co.uk we have the returns period is the standard 30 days, as we understand that sometimes there may be the odd item left over from a project or you may have an unexpected delay to a project meaning that you need the added peace of mind when ordering products in case a return is necessary.

We truly believe in being able to offer customers a flexible service and this extended period allows us to go that little extra to help you when in need, as long as goods are returned in the same condition as received we are happy to help.

To return any time initially please email your request to our Customer Support team at customerservice@tradeplumbing.co.uk along with your TP - Order Reference, please allow at least 1 working day for response and we will take it from there.

To View our complete Return Policy Click on Return and Refunds