CO 19 IBO ITALY diaphragm vessel – expansion vessel for central heating systems
The CO 19 IBO ITALY diaphragm vessel is a 19 l expansion vessel designed for central heating systems. It accommodates the thermal expansion of water and stabilizes system pressure, limiting fluctuations as the system heats up and cools down. It features a replaceable EPDM diaphragm that separates the heating water from the gas cushion.
Who it’s for
-
Heating system installers – the 3/4" connection and replaceable EPDM diaphragm simplify installation and subsequent servicing in a closed central heating system.
-
Homeowners with a boiler or furnace – the vessel accommodates the increase in water volume during heating, maintaining stable system pressure.
-
Heating systems operating at higher pressures – the design supports pressures up to 10 bar and temperatures from −10 to 100°C, making it suitable for demanding closed systems.
-
Technical servicing – the replaceable EPDM diaphragm allows the vessel to be restored to working order without replacing the entire unit.
Applications
The CO 19 IBO ITALY diaphragm vessel accommodates the thermal expansion of water in a closed central heating system, maintaining stable pressure and limiting fluctuations caused by the increase in water volume during heating.
It is suitable for domestic and commercial heating systems, as well as solar systems operating with heating water or a glycol solution. The CO 19 IBO ITALY diaphragm vessel can be installed vertically or horizontally.
Features of the CO 19 IBO ITALY diaphragm vessel – description and technical data
The vessel body is made of steel coated with a protective exterior paint to increase corrosion resistance. A replaceable diaphragm made of synthetic EPDM rubber, which is resistant to stretching and elevated temperatures, is fitted inside the steel shell. The diaphragm separates the heating medium from the compressed gas cushion, limiting the water’s contact with the inside of the body.
The vessel is supplied with a factory pre-charge pressure of 1.5 bar ±10%, which can be adjusted to suit the specific installation. It is compatible with closed heating systems with a maximum operating pressure of 10 bar and a medium temperature ranging from −10 to 100°C.
- Type: diaphragm expansion vessel for central heating
- Brand: IBO ITALY
- Capacity: 19 l
- Diaphragm: replaceable, EPDM
- Pre-charge pressure: 1.5 bar ±10%
- Max. operating pressure: 10 bar
- Max. test pressure: 15 bar
- Connection: 3/4"
- Operating temperature: from −10 to 100°C
- Installation position: vertical or horizontal
- Dimensions (Ø × height): Ø27 × 40 cm
- Weight: 2.6 kg
IBO ITALY – 36 months (3 years) manufacturer's warranty. Warranty and post-warranty service is provided by Dambat.
Dambat – a trusted manufacturer of pumps and hydrotechnical equipment with quality certifications.
Frequently asked questions (FAQ) – IBO ITALY 19 central heating vessel with diaphragm
What is the IBO ITALY 19 central heating vessel with diaphragm used for?
The IBO ITALY 19 central heating vessel with diaphragm absorbs the thermal expansion of water in a closed central heating system and stabilizes the pressure in it. W this way, it limits pressure fluctuations that occur when water expands as it heats up.
How does the IBO ITALY central heating vessel differ from the C.O. BASIC version?
The IBO ITALY central heating vessel operates at a higher working pressure (10 bar) and across a wider temperature range (from −10 to 100°C). It can be installed vertically or horizontally and comes with a 36-month warranty. The C.O. BASIC version operates at up to 8 bar and comes with a 24-month warranty. Both have a replaceable EPDM diaphragm.
What is the vessel's pre-charge pressure, and can it be changed?
The factory pre-charge pressure is 1.5 bar ±10%. It can be adjusted to match the system's static pressure by adding or releasing gas through the valve on the vessel fitting, with the system isolated and depressurized.
How do I install the IBO ITALY 19 central heating vessel with diaphragm?
The vessel can be installed vertically or horizontally using the 3/4" connection, most often on the system return side. An isolation valve is recommended to allow servicing without draining the entire system, along with checking the pre-charge pressure before startup.
Where can I buy the IBO ITALY 19 central heating vessel with diaphragm?
The manufacturer does not sell directly. The IBO ITALY 19 central heating vessel with diaphragm is available from retail partners, plumbing and heating wholesalers, and authorized online distributors.
What warranty does the IBO ITALY 19 central heating vessel with diaphragm have?
The IBO ITALY 19 central heating vessel with diaphragm comes with a 36-month (3-year) manufacturer's warranty. Warranty and post-warranty service is provided by Dambat.
