Industrietechnik
VFX412 VFX, Externally Threaded 2-Way, 3-Way and Bypass Control Valves, DN15–20
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.
Specifications
| 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 |
| 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 |
Software & documentation
Product sheet
Other documentation
