servo-controlled
216 DN12-BU
Type2/2-way
Actuation type servo-controlled
Nominal diameter 12.0 mm
Pressure range0.1 - 30.0 bar
KV value0.3 - 2.4 m³/h
Sealing material EPDM
Seat seal PTFE
Temperature medium-40 to +150°C
216 DN12-G
Design 2/2-way
Actuation type servo-controlled
Nominal diameter 12.0 mm
Pressure range0.1 - 30.0 bar
KV value0.3 - 2.8 m³/h
Housing material brass, stainless steel on request
Temperature medium-40 to +150°C
Connection G: Internal thread inch
216 DN12-LR
Design 2/2-way
Actuation type servo-controlled
Nominal diameter 12.0 mm
Pressure range 0.1 - 30.0 bar
KV value0.3 - 2.8 m³/h
Housing materialBrass
Temperature medium-40 to +150°C
ConnectionLR: soldering tube
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216 DN12-U
Design 2/2-way
Actuation type servo-controlled
Nominal diameter 12.0 mm
Pressure range 0.1 - 30.0 bar
KV value 0.3 - 2.8 m³/h
Housing material brass
Temperature medium-40 to +150°C
ConnectionU: External thread UNF
216 DN18-G
Design 2/2-way
Actuation type servo-controlled
Nominal diameter 18.0 mm
Pressure range 0.1 - 30.0 bar
KV value 4.5 - 6.5 m³/h
Housing material brass
Temperature medium-40 to +150°C
ConnectionG: Internal thread inch
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216 DN18-LR
Design 2/2-way
Actuation type servo-controlled
Nominal diameter 18.0 mm
Pressure range 0.1 - 30.0 bar
KV value 4.5 - 6.5 m³/h
Housing material brass
Temperature medium-40 to +150°C
Connection LR: solder pipe
216 DN25-G
Design 2/2-way
Actuation type servo-controlled
Nominal diameter 25.0 mm
Pressure range 0.5 - 30.0 bar
KV value 12.0 - 13.0 m³/h
Housing material brass
Temperature medium-40 to +150°C
ConnectionG: Internal thread inch
216 DN25-LR
Design 2/2-way
Actuation type servo-controlled
Nominal diameter 25.0 mm
Pressure range 0.2 - 30.0 bar
KV value 12.0 - 13.0 m³/h
Housing materialBrass
Temperature medium -40 to +150°C
ConnectionLR: solder pipe
216 DN25-G
MikroCool
Design 2/2-way
Actuation type servo-controlled
Nominal diameter 25.0 mm
Pressure range 0.5 - 30.0 bar
KV value 12.0 - 13.0 m³/h
Housing material brass
Temperature medium-40 to +150°C
ConnectionG: Internal thread inch
216 DN25-LR
Powerful CO2 valve
Design 2/2-way
Actuation type servo-controlled
Nominal diameter 5.0 mm
Pressure range 0.1 - 30.0 bar
KV value 0.3 - 0.4 m³/h
Housing material brass
Temperature medium -40 to +150°C
ConnectionLR: soldering tube
216 DN5-LR
Powerful CO2 valve
2/2-way design
Actuation type servo-controlled
nominal diameter 5.0 mm
Pressure range 0.1 - 130.0 bar
KV value 0.3 - 0.4 m³/h
Housing material stainless steel V2A
sealing material HNBR
seat seal special PTFE
Temperature Medium-40 to +150°C
ConnectionLM: solder sleeve, LM6, LM10, LM12, LM1/4, LM1/2
216 DN5-LR
Design 2/2-way
Actuation type servo-controlled
Nominal diameter 5.0 mm
Pressure range 0.1 - 30.0 bar
KV value 0.3 - 0.4 m³/h
Housing material brass
Temperature medium -40 to +150°C
ConnectionLR: soldering tube
216 DN6-LRG
Type2/2-way
Actuation typeservo-controlled
Nominal diameter 6.0 mm
Pressure range0.1 - 30.0 bar
KV value0.3 - 0.5 m³/h
Housing materialBrass
Temperature medium-40 to +150°C
ConnectionLRG: Soldering pipe screwed on
How it works:
Servo-controlled solenoid valves require a minimum pressure difference (Δ pmin) between the inlet and outlet sides to operate. The medium itself (e.g. water, air or oil) lifts or closes the diaphragm or piston, thereby regulating the flow. The solenoid armature only serves as a control mechanism to open or close the valve when the necessary pressure is present.
When to Choose:
Servo-controlled solenoid valves are ideal if you have a stable pressure difference in your system. They offer an efficient and cost-effective solution for applications where energy consumption and wear and tear should be minimized. Typical applications include heating systems, water treatment and industrial process controls where a constant pressure difference and controllability are required.
Advantages:
Energy efficiency: Since the medium itself helps to open the valve, less electrical energy is required.
Less wear: The magnet armature only performs a controlling function, which leads to a longer service life and lower maintenance costs.
Flexibility: These valves are suitable for a wide range of media and applications provided there is a minimum pressure difference.
Cost efficiency: Due to their low energy consumption and durability, servo-controlled valves are an economical choice.
Typical applications:
Heating and cooling systems: For controlling hot or cold water, especially in systems with constant pressure conditions.
Water treatment systems: For precise control of water flow in filtration systems or pumping stations.
Process industry: In areas where liquids are moved with a stable pressure difference, such as in chemical production or food processing.
Irrigation systems: Ideal for regulating water flow in large agricultural or garden systems.
"Maximum efficiency and minimal wear - servo-controlled solenoid valves for reliable and energy-saving control in every application."
Disadvantages:
Requires minimum pressure difference: Without sufficient pressure, the valve cannot work properly, making it unsuitable for low pressure systems.
Slower response time: Since the pressure of the medium moves the piston, the response time is slightly slower than with directly operated valves.
Technical data:
Pressure range: From 0.5 to 16 bar (depending on model).
Temperature range: Suitable for media from -10 °C to 120 °C.
Materials: Valve body made of brass, stainless steel or plastic, diaphragms made of EPDM, NBR or PTFE, depending on the medium.
Media compatibility: Compatible with water, air, neutral gases and oils.
Maintenance and installation:
Low maintenance: Reduced mechanical wear leads to extended maintenance intervals.
Installation: Make sure the pressure difference in the system meets the requirements of the valve and install it in the correct flow direction.
Example model:
Type AL 03: A servo-controlled solenoid valve suitable for applications with a pressure range of 0.5 to 10 bar. Perfect for precise control of water and neutral gases in heating or process systems.
Summary:
Servo-controlled solenoid valves are the optimal choice when there is a stable pressure difference in the system. They offer an energy-efficient, flexible and cost-effective solution, especially in applications such as heating, water treatment and industrial control systems. The minimal wear and low maintenance requirements make them particularly economical.
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