Heat Pump Components

The antifreeze valve is a mechanical protection system that discharge the water contained in the hydronic system. When the temperature of the water in the pipe drops below 3 °C, the antifreeze valve opens and drains.

• Maximum working pressure: 10 bar
• Medium temperature range: 0–90 °C
• Ambient temperature range: -30–60 °C
• Opening temperature: 3 °C
• Closing temperature: 4 °C
• Material: brass

Valves for use on heating systems where control is by zone or thermostatic radiator valves.
Fitted between flow and return permitting circulation through boiler and helps prevent
unnecessary cycling of boiler.

Valves for use on heating systems where control is by zone or thermostatic radiator valves.

Fitted between flow and return permitting circulation through boiler and helps prevent
unnecessary cycling of boiler.

● Temperature setting range: 0 - 110°C
● Max working pressure: 10 bar
● Medium: water, glycol solutions
● Max percentage of glycol: 30%

The CALEFFI XF filter separates impurities in the system right from the first passage. Its large filtration surface and impurity separation upstream of the filter also minimises the problem of mesh clogging.

System water is treated in three distinct steps: an initial separation mesh, a central magnet and an outlet filter.

CALEFFI XF continuously protects the generator and devices from any impurities that form in the hydraulic circuit. It can be adjusted for horizontal or vertical installation.

Internal cleaning brushes mean that maintenance can be carried out without shutting off the device.

Sizes DN 40 (code 577800, 1 ½”) and DN 50 (code 577900, 2”) are equipped with a by-pass
to restrict the flow rate passing through the device and thereby increase the Kv value.

We recommend 100% filtration during commissioning and for the first few weeks of system operation. Then, during the “constant” phase, the device can be set to operate with by-pass to achieve a higher Kv.

● Working Temperature Range: 0-90°C
● Connection: F BSP
● Max working pressure: 3 bar
● Body: Technopolymer
● Finish: Technopolymer
● Max. percentage of glycol: 30%
● Vertical/Horizontal connection

Specific for the complete cleaning of the hydraulic circuit, to protect continuously generator and components.
Technopolymer body.
Dirt separator with tecnopolimer internal element, with magnet.
Two inspectable strainers with stainless steel mesh:
1 for initial cleaning (blue colour) already installed,
1 for maintenance (grey colour) in package.
Shut-off valves with nuts, brass body.
Female connections and Ø 22 and Ø 28 mm with compression ends.
Adjustable for horizontal, vertical or 45° pipes.
Drain cock with hose connection.
Max. working pressure: 3 bar.
Temperature range: 0 - 90 °C.