Zilmet 300L Expansion Vessel 3/4″ BSP 2.5 Bar

Description

Zilmet 300L Expansion Vessel 3/4″ BSP 2.5 Bar  Part No: 1300030000

The Zilmet 300L Expansion Vessel is designed for sealed commercial heating systems, helping to absorb increases in water volume as system temperatures rise. Manufactured from carbon steel with a synthetic butyl rubber diaphragm, it helps maintain stable system pressure and protect components from unnecessary stress.
Suitable for plant rooms, commercial heating installations and larger sealed systems, the vessel is factory tested and manufactured in accordance with PED 2014/68/EU requirements.

Key Features

• Carbon steel shell and connection construction
• Synthetic butyl rubber diaphragm (SBR)
• Suitable for sealed heating systems
• Epoxy-polyester powder-coated finish
• 100% factory tested
• Manufactured in accordance with PED 2014/68/EU
• MIG welded construction to minimise internal rough spots
• Operating temperature range from -10°C to 99°C
• Designed to help maintain stable system pressure

Technical Information

FAQs

How do I calculate the correct expansion vessel size?
The correct expansion vessel size depends on factors such as system volume, operating pressure and temperature range. Choosing a vessel that is too small can lead to pressure fluctuations and unwanted discharge through safety valves.

For a detailed explanation of how to calculate the correct vessel size, see our guide: Expansion Vessel Sizing: A Comprehensive Guide.

How do I set the pressure on an expansion vessel?

The expansion vessel pre-charge pressure should be matched to the requirements of the heating system and checked during installation and maintenance. Incorrect pressure settings can affect system performance and lead to unnecessary wear on components.

For more information on checking and adjusting vessel pressure, see our guide: Expansion Vessel Pressure Setup.