control and safety fittings
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zone shut-off valves and actuators
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mixing valves and actuators
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air vent valves
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automatic air separators
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automatic fill valves
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thermoreg. bypass valves
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thermoreg. pump units
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safety valves
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dynamic balancing valves
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differential bypass valves
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riser balancing valves
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thermostatic balancing valves - for DHW circuits
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measuring and drain fittings for balancing valves
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safety valve groups
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expansion vessels
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expansion vessel brackets
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axial thermometers
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radial thermometers
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thermo-manometers
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radial pressure gauges
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axial pressure gauges
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shut-offs for expansion vessels
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thermowell pockets
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check valves
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replaceable regulating inserts - without external setting
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replaceable regulating inserts - with external setting
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Attack
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Product sorting
410 items total
List of products
–20 %
260,76 €
Actuator - for IVAR MIX and KZ mixing valves - 24V (continuous 0-10V); 5Nm; 70s
Accessories for heating and sanitary systems, such as zone and control fittings, manual and automatic air vent and separator valves, thermoregulation units, safety valves, balancing valves, expansion vessels, thermometers and pressure gauges.
Frequently asked questions
- What belongs among control and safety fittings? Safety and non-return valves, air vent and fill valves, thermoregulation units, balancing valves, expansion vessels, thermometers and pressure gauges – in other words, all the fittings that protect the system against overpressure and ensure its correct hydraulic operation.
- Why is a safety valve mandatory in a closed heating system? It protects the boiler and the entire pipework from damage if the pressure rises above the permitted limit – without it, a fault in the expansion vessel or the control system could cause the system to be overpressurised.
- What is the difference between an expansion vessel for heating and for domestic water? A heating vessel works with a closed heating water circuit and does not need to meet the hygiene requirements for drinking water, while the membrane of a domestic water vessel is certified for contact with drinking water.
- How often should the fittings in the system be checked? It is recommended to check the function of the safety valve, the pre-charge pressure of the expansion vessel and the patency of the air vent and non-return valves once a year during the boiler service inspection.