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Products - UNITS Rotary units, Zone units, Ball valves, Programmable motorized ball valves

S9000 530C

3-way zone units with Clip system

The FIRŠT valves FDV 530C are 3-way diverting/changeover brass valves for use in heating (solar, remote,house-heating etc.) and cooling installations, especially in heat pumps. Valves are equipped with series 9000 2P ND actuators which allow high regulating accuracy and easy installation with one-click CLIP System. Actuators are controlled with 2-point signal (SPST) built-in relay module. Zone units can be manually operated with handle and button on the cover.

Valves are available in DN 20 size, with external threads,or compression fittings and are rated PN10.

FIRŠT valves FDV 532C and FDV 533C are designed for use in heating or cooling systems or for use in different heating or cooling devices (e.g. heat pumps, HVAC systems).

Two types of connections are avaliable: 

  • external threads (FBV 532C) and 
  • compression fittings (FBV 533C).

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FDV 532C, external threads

CODE TYPE DN Kvs Voltage Rolation time Control Connection A B C Weight (kg)
14323 S9Gi0-M 532C 20 8 230V~50Hz 8s/90° 2P G 1" 60 / 102 0,63
14324 S9Gi0-M 532C 20 8 230V~50Hz 8s/90° 2P G 5/4" 74 / 102 0,78

FDV 533C, compression fittings

CODE TYPE DN Kvs Voltage Rolation time Control Connection A B C Weight (kg)
14325 S9Gi0-M 533C 20 8 230V~50Hz 8s/90° 2P CPF 22mm 80 98 102 0,78
14326 S9Gi0-M 533C 20 8 230V~50Hz 8s/90° 2P CPF 28mm 80 100 102 0,89


Nominal pressure: PN 10
Medium: water, glycol < 50%, non aggressive liquids water quality as per VDI 2035
Media temperature: min. +5°C, max. +80°C (briefly +90°C)
Leakage (Δ p=1 bar): max.0,1% Kvs
Max. diff. pressure: 1 bar
Connections: G external thread (ISO 228-1)


Valve body: Brass, CW617N
Obturator: PPS
Bushing: PTFE
O-rings: NBR
Sealing ring: PA 66+Q


Control: 2-point SPST
Supply voltage: 230 VAC ~, 50Hz
Rotation time: 8s/60°
Power consumption: 9 VA (operation), 5 VA (stand by relay on), 0 VA (stand by relay off)
Max.Torque: 5 Nm
Protection class: II
Enclosure rating: IP44
Connection cable: Molex or Molex compatible connector
Direction of rotation: ND, not defined CW/CCW, (60°/360°)
Manual control: with handle and button on the cover
Position indicator: handle on the cover
Ambient temperature:   0°C..+55°C
Storage temperature: -10°C..+70°C
Humidity: 0%..80% R.h. (non condensed)


Actuator can be installed in only one position.


Electrical connection:

Molex electrical connection. Actuator has output signal in end (A/ B) positions.


Different options:


Installation examples:



■ Auxiliary switch: one potential free auxiliary switch in the end position of the actuator is available as an option.
■ Electrical connection: cable or optional Molex connector (IP44) and optional specially sealed Molex cable (IP44).
■ Supply voltage: 230 VAC, 50 Hz, 24 VAC, 50 Hz.
■ Manual control handle: with or without manual control handle.
■ Solar/cooling adapter: SCA Heat barrier for protection of the actuator in solar or cooling systems.