Features
The CAL-PRO expansion vessels absorb the water volume variations in closed heating systems maintaining constant pressure, helping to reduce energy consumption.
The broad range available meets the requirements of various heating systems.
Technical Information
- Crimped or welded carbon steel shells
- Synthetic SBR rubber according to DIN 4807-3 norms suitable for every capacity for maximising tank drawdown.
- Vessels are painted externally with long-lasting epoxy polyester.
| Manufacturer | Zilmet |
|---|---|
| Warranty | 1 year warranty |
| Dimensions | Diameter: 220mm x Height: 295mm |
| Bars | 5 bar |
| Capacity | 8Ltr |
| Duty Type | Domestic |
| Pump Type | Pressure Vessel |
| Layout | Vertical |
| Diameter | 220mm |
| Height | 295mm |
| Next Day Delivery | No |
| Connection Size | 3/4 inch |
| Manufacturers Part Number | 1300000800B |
The Zilmet Cal-Pro Vertical Expansion Vessel is designed to manage pressure variations in closed heating systems. As a result, it absorbs changes in water volume caused by temperature fluctuations and helps maintain stable system pressure. Therefore, system safety improves and heating performance becomes more efficient.
Moreover, the vessel helps reduce stress on boilers, pipes and other connected components. By maintaining constant pressure, it supports smoother system operation and contributes to lower energy consumption. For this reason, it is suitable for domestic heating applications that require reliable pressure control.
In addition, the Zilmet Cal-Pro Vertical Expansion Vessel features a compact vertical design that allows easy installation, even in limited spaces. Furthermore, it is manufactured using durable materials to ensure long service life and dependable performance. Notably, the internal rubber bladder complies with DIN standards and supports effective expansion control.
At the same time, this expansion vessel operates efficiently at a working pressure of 5 bar and offers a capacity of 8 litres. Consequently, it provides consistent pressure management for residential heating systems. As a result, pressure-related faults are reduced and system reliability improves.
Overall, the vessel supports stable heating performance by compensating for system expansion and contraction. Therefore, it helps extend the lifespan of heating components and ensures reliable operation during regular daily use.






















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