VFX, Externally Threaded 2-Way, 3-Way and Bypass Control Valves, DN15–20

VFX210

2-way zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN15 connection, and offers a Kvs value of 0.25 for optimal flow capacity.

Connection: G 1/2" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN15
Kvs: 0.25 m³/h
Max. diff. pressure: 250 kPa
Media temperature: 2…95 °C
Valve Type: 2-Way
Actuator: SE1T / SE1M

VFX211

2-way zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN15 connection, and offers a Kvs value of 0.4 for optimal flow capacity.

Connection: G 1/2" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN15
Kvs: 0.4 m³/h
Max. diff. pressure: 250 kPa
Media temperature: 2…95 °C
Valve Type: 2-Way
Actuator: SE1T / SE1M

VFX212

2-way zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN15 connection, and offers a Kvs value of 0.6 for optimal flow capacity.

Connection: G 1/2" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN15
Kvs: 0.6 m³/h
Max. diff. pressure: 250 kPa
Media temperature: 2…95 °C
Valve Type: 2-Way
Actuator: SE1T / SE1M

VFX213

2-way zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN15 connection, and offers a Kvs value of 1.0 for optimal flow capacity.

Connection: G 1/2" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN15
Kvs: 1 m³/h
Max. diff. pressure: 250 kPa
Media temperature: 2…95 °C
Valve Type: 2-Way
Actuator: SE1T / SE1M

VFX214

2-way zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN15 connection, and offers a Kvs value of 1.6 for optimal flow capacity.

Connection: G 1/2" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN15
Kvs: 1.6 m³/h
Max. diff. pressure: 250 kPa
Media temperature: 2…95 °C
Valve Type: 2-Way
Actuator: SE1T / SE1M

VFX235

2-way zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN20 connection, and offers a Kvs value of 2.5 for optimal flow capacity.

Connection: G 3/4" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN20
Kvs: 2.5 m³/h
Max. diff. pressure: 250 kPa
Media temperature: 2…95 °C
Valve Type: 2-Way
Actuator: SE1T / SE1M

VFX237

2-way zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN20 connection, and offers a Kvs value of 4.0 for optimal flow capacity.

Connection: G 3/4" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN20
Kvs: 4 m³/h
Max. diff. pressure: 80 kPa
Media temperature: 2…95 °C
Valve Type: 2-Way
Actuator: SE1TP / SE1MP

VFX239

2-way zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN20 connection, and offers a Kvs value of 6.0 for optimal flow capacity.

Connection: G 3/4" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN20
Kvs: 6 m³/h
Max. diff. pressure: 80 kPa
Media temperature: 2…95 °C
Valve Type: 2-Way
Actuator: SE1TP / SE1MP

VFX310

3-way zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN15 connection, and offers a Kvs value of 0.25 for optimal flow capacity.

Connection: G 1/2" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN15
Kvs: 0.25 m³/h
Max. diff. pressure: 250 kPa
Media temperature: 2…95 °C
Valve Type: 3-Way
Actuator: SE1T / SE1M

VFX311

3-way zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN15 connection, and offers a Kvs value of 0.4 for optimal flow capacity.

Connection: G 1/2" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN15
Kvs: 0.4 m³/h
Max. diff. pressure: 250 kPa
Media temperature: 2…95 °C
Valve Type: 3-Way
Actuator: SE1T / SE1M

VFX312

3-way zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN15 connection, and offers a Kvs value of 0.6 for optimal flow capacity.

Connection: G 1/2" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN15
Kvs: 0.6 m³/h
Max. diff. pressure: 250 kPa
Media temperature: 2…95 °C
Valve Type: 3-Way
Actuator: SE1T / SE1M

VFX313

3-way zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN15 connection, and offers a Kvs value of 1.0 for optimal flow capacity.

Connection: G 1/2" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN15
Kvs: 1 m³/h
Max. diff. pressure: 250 kPa
Media temperature: 2…95 °C
Valve Type: 3-Way
Actuator: SE1T / SE1M

VFX314

3-way zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN15 connection, and offers a Kvs value of 1.6 for optimal flow capacity.

Connection: G 1/2" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN15
Kvs: 1.6 m³/h
Max. diff. pressure: 250 kPa
Media temperature: 2…95 °C
Valve Type: 3-Way
Actuator: SE1T / SE1M

VFX335

3-way zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN20 connection, and offers a Kvs value of 2.5 for optimal flow capacity.

Connection: G 3/4" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN20
Kvs: 2.5 m³/h
Max. diff. pressure: 250 kPa
Media temperature: 2…95 °C
Valve Type: 3-Way
Actuator: SE1T / SE1M

VFX337

3-way zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN20 connection, and offers a Kvs value of 4.0 for optimal flow capacity.

Connection: G 3/4" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN20
Kvs: 4 m³/h
Max. diff. pressure: 80 kPa
Media temperature: 2…95 °C
Valve Type: 3-Way
Actuator: SE1TP / SE1MP

VFX339

3-way zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN20 connection, and offers a Kvs value of 6.0 for optimal flow capacity.

Connection: G 3/4" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN20
Kvs: 6 m³/h
Max. diff. pressure: 80 kPa
Media temperature: 2…95 °C
Valve Type: 3-Way
Actuator: SE1TP / SE1MP

VFX410

3-way, 4-port zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN15 connection, and offers a Kvs value of 0.25 for optimal flow capacity.

Connection: G 1/2" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN15
Kvs: 0.25 m³/h
Max. diff. pressure: 250 kPa
Media temperature: 2…95 °C
Valve Type: 3-Way with Bypass
Actuator: SE1T / SE1M

VFX411

3-way, 4-port zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN15 connection, and offers a Kvs value of 0.4 for optimal flow capacity.

Connection: G 1/2" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN15
Kvs: 0.4 m³/h
Max. diff. pressure: 250 kPa
Media temperature: 2…95 °C
Valve Type: 3-Way with Bypass
Actuator: SE1T / SE1M

VFX412

3-way, 4-port zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN15 connection, and offers a Kvs value of 0.6 for optimal flow capacity.

Connection: G 1/2" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN15
Kvs: 0.6 m³/h
Max. diff. pressure: 250 kPa
Media temperature: 2…95 °C
Valve Type: 3-Way with Bypass
Actuator: SE1T / SE1M

VFX413

3-way, 4-port zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN15 connection, and offers a Kvs value of 1.0 for optimal flow capacity.

Connection: G 1/2" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN15
Kvs: 1 m³/h
Max. diff. pressure: 250 kPa
Media temperature: 2…95 °C
Valve Type: 3-Way with Bypass
Actuator: SE1T / SE1M

VFX414

3-way, 4-port zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN15 connection, and offers a Kvs value of 1.6 for optimal flow capacity.

Connection: G 1/2" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN15
Kvs: 1.6 m³/h
Max. diff. pressure: 250 kPa
Media temperature: 2…95 °C
Valve Type: 3-Way with Bypass
Actuator: SE1T / SE1M

VFX435

3-way, 4-port zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN20 connection, and offers a Kvs value of 2.5 for optimal flow capacity.

Connection: G 3/4" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN20
Kvs: 2.5 m³/h
Max. diff. pressure: 250 kPa
Media temperature: 2…95 °C
Valve Type: 3-Way with Bypass
Actuator: SE1T / SE1M

VFX437

3-way, 4-port zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN20 connection, and offers a Kvs value of 4.0 for optimal flow capacity.

Connection: G 3/4" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN20
Kvs: 4 m³/h
Max. diff. pressure: 80 kPa
Media temperature: 2…95 °C
Valve Type: 3-Way with Bypass
Actuator: SE1TP / SE1MP

VFX439

3-way, 4-port zone valve for heating and cooling systems, designed for high-performance climate control. This Normally Closed (NC) valve provides precise regulation and enhanced energy efficiency, making it ideal for fan coil applications. Featuring ON/OFF operation driven by the SE1 electro-thermal actuator series, it ensures smooth switching, long service life, and minimal maintenance. Built to withstand demanding operating conditions, the valve is rated PN16, equipped with a DN20 connection, and offers a Kvs value of 6.0 for optimal flow capacity.

Connection: G 3/4" (ISO 228-1) M
Stroke: 2.5 mm
Nominal diameter: DN20
Kvs: 6 m³/h
Max. diff. pressure: 80 kPa
Media temperature: 2…95 °C
Valve Type: 3-Way with Bypass
Actuator: SE1TP / SE1MP

Application	Cooling, Heating, Fan coil
Pressure rating	PN16
Connection types	BSP externally threaded according to ISO 228/1
Flow characteristics	Linear
Leakage	0.0 % of Kvs ()
Media	Glycol-mixed water (max. 40 % glycol), Hot water, Cold water
Closing direction	When stem is pulled outward
Actuator connection	M30x1.5
Media temperature	2…95 °C
Body	Brass CW614N
Seat	Brass CW614N
Plug	PA + GF
Stem	PA + GF
O-rings	FKM
Stuffing box	PPO + GP
Spring	Stainless steel

VFX, Externally Threaded 2-Way, 3-Way and Bypass Control Valves, DN15–20

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