COAX MK / FK DR 3/2 Way Direct Acting Coaxial Valves

The COAX MK / FK DR 3/2 Way Direct Acting Coaxial Valves are pressure-balanced, spring-return valves designed for effective operation across a broad media range, including gaseous, liquid, highly viscous, and contaminated fluids. With a DN10 to DN80 orifice and a PN 0–40 bar pressure range, these valves feature threaded or flanged ports and hermetically sealed bodies in aluminium, brass, galvanised steel, and stainless steel, using NBR, PTFE, FPM, CR, and EPDM seals. They support DC 24V and AC 230V, providing reliable, leak-free performance.
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Key Features

Key features and benefits of the COAX MK / FK DR 3/2 Way Direct Acting Coaxial Valves
1

Key Features

The COAX MK / FK valves incorporate a pressure-balanced construction with a spring-return mechanism, ensuring consistent switching performance across various applications. This design prevents pressure fluctuations from affecting the valve's operation, making it suitable for demanding environments where stable flow control is essential.
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Key Features

Constructed from durable materials such as aluminium, brass, galvanised steel, and stainless steel, these valves offer resilience in challenging conditions. The range of seal materials, including NBR, PTFE, FPM, CR, and EPDM, provides compatibility with a wide array of media types, from clean gases to heavily contaminated or corrosive liquids, broadening the valve’s application scope.
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Key Features

Designed with a hermetically sealed body, the COAX MK / FK valves ensure leak-free performance, even under high wear. This sealing reliability is crucial for media like toxic gases or aggressive fluids, preventing external contamination and enhancing workplace safety by containing all process media within the valve system.

Valve Specifications
Valve Type: 3/2-way valve
Operating Method: Direct Actuated
Orifice Size: DN 10 - 80
Pressure Range: PN 0 - 40 bar
Port Type: Threaded / Flanged
Valve Design: Pressure Balanced, with Spring Return, Switching Overlap
Body Material: Aluminium, Brass, Galvanised Steel, Nickel Plated Brass/Steel, & SS
Seal Material: NBR, PTFE, FPM, CR, EPDM, special
Media: Gaseous, Liquid, Highly Viscous, Contaminated
Nominal Voltage: DC 24 V / AC 230 V

DN10 to DN 32 Documents & Drawings

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Type MK 10 DR
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Type MK 10 DR 40/100 Bar
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Type MK / FK 15 DR
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Type MK / FK 20 DR
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Type MK / FK 25 DR
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Type MK / FK 32 DR

DN40 to DN80 Documents & Drawings

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Type MK / FK 40 DR
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Type MK / FK 50 DR
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Type FK 65 DR
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Type FK 80 DR

Frequently Asked Questions

A 3/2-way direct acting coaxial valve controls fluid flow with three ports and two positions, directly actuating to allow or block media movement without needing pilot pressure.

The COAX MK / FK valve bodies are made from aluminium, brass, galvanised steel, nickel-plated brass/steel, and stainless steel, allowing versatility across different applications and media.

COAX MK / FK valves have an operating pressure range of PN 0 to 40 bar, accommodating low to high-pressure applications.

These valves are widely used in industries requiring reliable media control, such as chemical processing, food and beverage, water treatment, and general automation.

Yes, COAX MK / FK valves are suitable for contaminated media, with a pressure-balanced design and durable seals that maintain performance even with particulates in the fluid.

The available seal materials include NBR, PTFE, FPM, CR, and EPDM, each offering compatibility with different media types and environmental conditions.

These valves come in orifice sizes ranging from DN 10 to DN 80, accommodating varied flow rates and application needs.

COAX MK / FK valves are available with threaded or flanged ports, providing flexible installation options to suit different piping setups.

Yes, COAX MK / FK valves are designed to handle highly viscous media, maintaining stable performance with thick fluids due to their direct acting and pressure-balanced design.

The COAX MK / FK valves operate on DC 24V or AC 230V, offering flexibility in electrical setup and compatibility with standard power supplies.

The pressure-balanced design ensures that COAX MK / FK valves operate reliably across a range of pressures, reducing the risk of pressure-related failures and extending the valve’s service life.

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COAX MK / FK DR Coaxial Valves