Coaxial Valves
266
Design 2/2-way
Actuation type direct controlled
Nominal diameter 2.0 mm - 6.0 mm
Pressure range 0.00 - 100.0 bar
KV value 2.5 - 9.5 l/min
Temperature medium -10 to +100°C
Connection G1/4, G3/8
small nominal diameter -
high pressures
267
Ideal for
Gas applications
Design 2/2-way
Actuation type direct controlled
Nominal width 1.0 mm - 6.0 mm
Pressure range 0.00 - 300.0 bar
KV value 0.7 - 10.7 l/min
Temperature medium -10 to +100°C
Connection G1/4, G3/8
269
Design 2/2-way
Actuation type direct controlled
Nominal diameter 10.0 mm - 25.0
Pressure range 0.00 - 20.0 bar
KV value 2.5 - 12.3 m³/h
Temperature medium -10 to +100°C
Connection G1/4, G3/8, G1/2, G3/4,
G1, G1 1/4
270
classic
Design 2/2-way
Actuation type direct controlled
Nominal diameter 10.0 mm - 50.0 mm
Pressure range 0.00 - 40.0 bar
KV value 2.5 - 47.2 m³/h
Temperature medium -10 to +100°C
Connection see table
271
Design 2/2-way
Actuation type direct controlled
Nominal diameter 10.0 mm - 32.0 mm
Pressure range 0.00 - 64.0 bar
KV value 2.5 - 20.0 m³/h
Temperature medium -10 to +100°C
Connection see table
272
Design 2/2-way
Actuation type direct controlled
Nominal diameter 10.0 mm - 32.0 mm
Pressure range 0.00 - 100.0 bar
KV value 2.5 - 20.0 m³/h
Housing material brass, stainless steel 1.4305, stainless steel 1.4571
Temperature medium -10 to +100°C
Connection see table
270-X
classic
Design 2/2-way
Actuation type direct controlled
Nominal diameter 10.0 mm - 50.0 mm
Pressure range 0.00 - 40.0 bar
KV value 2.5 - 47.2 m³/h
Housing material brass, aluminium
Temperature medium -10 to +100°C
Connection G1/4, G3/8, G1/2, G3/4, G1, G1 1/4, G1 1/2, G2
​
271-X
​
Design 2/2-way
Actuation type direct controlled
Nominal diameter 10.0 mm - 32.0 mm
Pressure range 0.00 - 64.0 bar
KV value 2.5 - 20.0 m³/h
Housing material brass, aluminium
Temperature medium -10 to +100°C
Connection G1/4, G3/8, G1/2, G3/4, G1, G1 1/4, G1 1/2
272-X
​
Design 2/2-way
Actuation type direct controlled
Nominal diameter 10.0 mm - 32.0 mm
Pressure range 0.00 - 100.0 bar
KV value 2.5 - 20.0 m³/h
Housing material brass, aluminum
Temperature medium -10 to +100°C
Connection G1/4, G3/8, G1/2, G3/4, G1, G1 1/4, G1 1/2
280
Robust
Design 2/2-way
Actuation type externally controlled
Nominal diameter 10.0 mm - 50.0 mm
Pressure range 0.00 - 64.0 bar
KV value 2.7 - 47.2 m³/h
Housing material brass, stainless steel 1.4305, stainless steel 1.4571
Temperature medium -10 to +100°C
Connection see table
​
281
Design 2/2-way
Actuation type externally controlled
Nominal diameter 10.0 mm - 50.0 mm
Pressure range 0.00 - 120.0 bar
KV value 2.7 - 47.2 m³/h
Housing material brass, stainless steel 1.4305, stainless steel 1.4571
Temperature medium -10 to +100°C
Connection see table
282
Design 2/2-way
Actuation type externally controlled
Nominal diameter 10.0 mm - 25.0 mm
Pressure range 0.00 - 160.0 bar
KV value 2.7 - 14.5 m³/h
Housing material brass, stainless steel 1.4305, stainless steel 1.4571
Temperature medium -10 to +100°C
Connection see table
280-X
Design 2/2-way
Actuation type externally controlled
Nominal diameter 10.0 mm - 50.0 mm
Pressure range 0.00 - 64.0 bar
KV value 2.7 - 47.2 m³/h
Housing material brass, aluminium
Temperature medium -10 to +100°C
Connection G1/4, G3/8, G1/2, G3/4, G1, G1 1/4, G1 1/2, G2
281-X
Design 2/2-way
Actuation type externally controlled
Nominal diameter 10.0 mm - 50.0 mm
Pressure range 0.00 - 120.0 bar
KV value 2.7 - 47.2 m³/h
Housing material brass, aluminium
Temperature medium -10 to +100°C
Connection G1/4, G3/8, G1/2, G3/4, G1, G1 1/4, G1 1/2, G2
282-X
Design 2/2-way
Actuation type externally controlled
Nominal diameter 10.0 mm - 25.0 mm
Pressure range 0.00 - 160.0 bar
KV value 2.7 - 14.5 m³/h
Housing material brass, aluminium
Temperature medium -10 to +100°C
Connection G1/4, G3/8, G1/2, G3/4, G1, G1 1/4
283
Maximum pressure
Design 2/2-way
Actuation type externally controlled
Nominal diameter 15.0 mm
Pressure range 0.00 - 200.0 bar
KV value 7.2 m³/h
Housing material brass, stainless steel 1.4305, stainless steel 1.4571
Temperature medium -10 to +100°C
Connection G3/8, G1/2, G3/4
283-X
Design 2/2-way
Actuation type externally controlled
Nominal diameter 15.0 mm
Pressure range 0.00 - 200.0 bar
KV value 7.2 m³/h
Housing material brass, aluminium
Temperature medium -10 to +100°C
Connection G1/2, G3/4, G1, G1 1/4
286
extremely compact
Design 2/2-way
Actuation type externally controlled
Nominal diameter 8.0 mm
Pressure range 0.00 - 40.0 bar
KV value 1.7 m³/h
Housing material brass
Temperature medium -10 to +100°C
Connection G3/8
286-X
extremely compact
Design 2/2-way
Actuation type externally controlled
Nominal diameter 8.0 mm
Pressure range 0.00 - 40.0 bar
KV value 1.7 m³/h
Housing material brass, aluminium
Temperature medium -10 to +100°C
Connection G3/8
290
Design 2/2-way
Actuation type direct controlled
Nominal diameter 10.0 mm - 15.0 mm
Pressure range 0.00 - 20.0 bar
KV value 2.5 - 5.2 m³/h
Housing material brass, stainless steel 1.4305, stainless steel 1.4571
Temperature medium -20 to +40°C
Connection G1/4, G3/8, G1/2, G3/4
370
Design 3/2-way
Actuation type direct controlled
Nominal diameter 10.0 mm - 50.0 mm
Pressure range 0.00 - 40.0 bar
KV value 2.0 - 43.0 m³/h
Housing material brass, stainless steel 1.4305, stainless steel 1.4571
Temperature medium -10 to +100°C
Connection G1/4, G3/8, G1/2, G3/4, G1, G1 1/4, G1 1/2, G2
371
Design 3/2-way
Actuation type direct controlled
Nominal diameter 10.0 mm - 32.0 mm
Pressure range 0.00 - 64.0 bar
KV value 2.0 - 17.9 m³/h
Housing material brass, stainless steel 1.4305, stainless steel 1.4571
Temperature medium -10 to +100°C
Connection G1/4, G3/8, G1/2, G3/4, G1, G1 1/4, G1 1/2
380
Design 3/2-way
Actuation type externally controlled
Nominal diameter 10.0 mm - 50.0 mm
Pressure range 0.00 - 64.0 bar
KV value 2.5 - 43.0 m³/h
Housing material brass, stainless steel 1.4305, stainless steel 1.4571
Temperature medium -10 to +100°C
Connection G1/4, G3/8, G1/2, G3/4, G1, G1 1/4, G1 1/2, G2
​
381
Design 3/2-way
Actuation type externally controlled
Nominal diameter 10.0 mm - 50.0 mm
Pressure range 0.00 - 100.0 bar
KV value 2.5 - 43.0 m³/h
Housing material brass, stainless steel 1.4305, stainless steel 1.4571
Temperature medium -10 to +100°C
Connection G1/4, G3/8, G1/2, G3/4, G1,
390
Design 3/2-way
Actuation type direct controlled
Nominal diameter 10.0 mm - 15.0 mm
Pressure range 0.00 - 20.0 bar
KV value 2.5 - 5.6 m³/h
Housing material brass, stainless steel 1.4305, stainless steel 1.4571
Temperature medium -20 to +40°C
Connection G1/4, G3/8, G1/2, G3/4
Coaxial valves
For controlling vacuum, gaseous, liquid, gelatinous,
abrasive, contaminated and aggressive media.
The design of the coaxial valve enables the control of high pressures and simultaneously large volume flows, compared to conventional valves.
Discover compatible control valves for your coaxial valves.
Coaxial valves - innovation and quality in valve technology
High-quality valve technology plays a crucial role in demanding applications. Coaxial valves are characterized by a robust design and are particularly ideal for use in areas with high pressure or extreme temperatures. They offer reliability and efficiency to meet the requirements of a wide range of industries.
What are coaxial valves?
Coaxial valves are engineered to provide superior performance, distinguished by their unique design. They consist of a central control tube surrounded by an outer housing. This design enables precise control of the fluid flow and is therefore particularly ideal for applications that are subject to high pressure or temperature requirements.
Applications of coaxial valves
Thanks to their robustness and reliability, coaxial valves are used in numerous industries and applications. They are used in the automotive industry, the food and beverage industry, and the chemical industry, among others. They offer an optimal solution wherever precise control of the fluid flow is required.
The different types of coaxial valves - Filters for coaxial valves
When selecting a coaxial valve, choosing the right filter is very important. The filters affect the quality of the medium flowing through and must be selected according to the specific requirements of the respective application. Available filter options include materials such as galvanized steel, nickel-plated steel, brass, stainless steel (1.4305 and 1.4571) and aluminum.
"Coaxial valves – precision and reliability for demanding applications."
Design of coaxial valves
Coaxial valves are available in a variety of designs, including 2/2-way and 3/2-way. The choice of design depends on the specific requirements of the application and should be made carefully to ensure optimum performance.
How coaxial valves work
Coaxial valves can be designed in NC (normally closed) or NO (normally open) configuration. This setting defines whether the valve is open or closed in the resting state and therefore directly influences the functioning of the valve.
Actuation type of coaxial valves
Coaxial valves can be either direct-acting or externally-actuated. In direct-acting valves, the fluid flow is controlled directly via the control tube, while in externally-actuated valves, an external control unit is used.
Nominal diameter, pressure range and Kv value of coaxial valves
The nominal size, pressure range and Kv value are crucial technical specifications of coaxial valves. The nominal size indicates the diameter of the valve, the pressure range defines the maximum operating pressure and the Kv value indicates the flow coefficient of the valve.
Conclusion
Coaxial valves are an excellent choice for applications that require precise control of fluids. Their robust design, combined with a wide range of configuration options, makes them an ideal solution for demanding applications in various industries.
Frequently Asked Questions (FAQs) about Coaxial Valves
What advantages do coaxial valves offer compared to conventional valves?
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Precise Control: Due to their unique design, coaxial valves allow for accurate control of fluid flow, even at high pressures and temperatures.
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Robust and Reliable: The construction from high-quality materials ensures a long service life and reliable operation in demanding environments.
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Versatility: Coaxial valves are available in various configurations and can be customized to meet the specific needs of different applications.
In which industries are coaxial valves most commonly used?
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Automotive Industry: Control of fuel and oil pressure.
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Food and Beverage Industry: Dosage and control of liquids and gases.
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Chemical Industry: Control of aggressive media.
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Medical Technology: Control of fluids in medical devices.
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Aerospace Industry: Precise hydraulic control.
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Mechanical Engineering: Control of compressed air and hydraulic oil.
What filter options are available for coaxial valves?
The choice of filter depends on the type of medium and the requirements. Possible options include:
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Zinc-Plated Steel: For water, air, and oils.
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Nickel-Plated Steel: For water, air, oils, and mildly corrosive media.
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Brass: For similar applications as nickel-plated steel.
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Stainless Steel 1.4305: For aggressive media such as acids and alkalis.
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Stainless Steel 1.4571: For particularly aggressive media and high temperatures.
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Aluminum: For air and mildly corrosive media.
What does the abbreviation "NC" mean for coaxial valves?
"NC" stands for "normally closed" and means that the valve is closed in its default state. It opens only when activated to allow the flow.
Where do coaxial valves come from?
Coaxial valves are developed and manufactured in Germany, under strict quality controls to ensure the highest standards.
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