• Suitable for Honeywell 3-way changeover valve series VC DN 20 (3/4") and DN 25 (1")
  
• Ref. no.: 7098973

TF... ...

• TFI ...
  
• Suitable for atmospheric gas burner (ionisation)
  
• Mod. 05 to 350 kW
  

The IRD 1010 replaces the versions IRD 810 / 910 / 911 / 911vi (in conjunction with plug cable).Das IRD 1020 replaces version 920. A plug cable and the magnetic bracket is M93 is required, without which the device switches off.Important:When ordering an INFRARED FLACKER DETECTOR please take the ligh ...

• Suitable for Hofamat: K10, K20
  
• Ref. no.: 190 838

• Drive with EPE control (one-pole switch-on).
  If heat is needed, the controller contact is closed, RLY1 energises and closes the NO contact of switch SW3. As a result, connection B is closed and connection A is opened. If A is fully open, the cam closes switch SW1 and opens SW2.
  If heat demand is met, the controller contact is closed. RLY1 drops out and the NC contact in SW3 is closed. If connection A is fully closed, the cam closes SW2 and opens SW1. The valve is now ready again for the next heating requirement.
  In the event of a power cut, the valve remains in the current position for both drive types. If the electricity is switched on again, the valve responds to the controller state.
  
• Suitable for VC changeover valve
  
• Power consumption: 4 W
  

MMI ... ...

• Buderus Ref. no.: 7098970

DKG ... ...

DKO ... ...

• For use with water, oil-free compressed air and nitrogen in systems certified to PED
  
• Output pressure: 1.5 - 6 bar
  
• Installation position: horizontal
  

• For use with water, oil-free compressed air and nitrogen in systems certified to PED
  
• Output pressure: 1.5 - 6 bar
  
• Installation position: horizontal
  

• Suitable for installation in closed heating circuits and water pipes
  
• Can be used as changeover or mixing valve
  
• Very quiet changeover without water hammer
  

• Three-way (one-pin switchover).
  If heat is needed, the NO control contact is closed, the valve closes connection B and opens connection A. If connection A is fully opened, the cam closes switch SW1 and opens switch SW2.
  If heating needs are cover, the NC control contact is closed. The drive is controlled via SW1 and connection A is closed.
  If connection A is fully closed, the cam closes SW2 and opens SW1.
  The valve is ready again for the next heat requirement.
  
• Suitable for VC changeover valve
  
• Power consumption: 4 W
  

• Synchronous motor with Capacitors
  
• Position indicator with visual scale
  
• Limit switch for limiting the actuating travel
  

• Service parts mixer ZR..., DR... and DRU (DRU only DN25 and DN32)
  
• Suitable for: ZR and DR, DRU (series from 1999)
  
• Scope of delivery:
  - Spring and pressure disc

• Suitable for Thyssen: TB3V, TU3V, TB4V
  
• For 1-level oil fan burner up to 30 kg/h
  
• With oil pre-heating (with flying restart circuit)
  

• For use with drinking water
  
• Can be backwashed
  
• Inlet pressure: min. 1.5 bar | max. 16 bar
  

• Suitable for Giersch: R20-V/Z-L/Bi Nox, R30-Z-L/Bi Nox
  
• Ref. no.: 47-90-21037

• Suitable for Giersch: R30, ref. no.: 37-90-10955

• Suitable for burners on hot air generators (longer pre-ventilation period)
  
• For 2-level operation
  
• DKW 972: without terminal for oil pre-heater
  

• For use with drinking water
  
• Can be backwashed
  
• Inlet pressure: max. 16 bar
  

• For Changeover switch from Heating to domestic hot water charging and other applications
  
• Control with one phase
  
• Electrical connection:
  - Phase on Braun: A opens and B closes
  - without voltage: B opens and A closes