Logo Oventrop GmbH & Co. KG

Cocon QTZ Pressure independent control valve with internal thread PN 25
DN 20, Rp ¾, 250-1800 l/h, with two mounted Classic measuring valves, DZR brass


Pressure independent control valve for dynamic hydronic balancing of heat exchangers, for example fan coils or cooling ceilings and distribution pipes in heating and cooling systems with closed circuits. The valve combination consists of an automatically operating flow controller and a control valve and can be equipped with an actuator or a manual regulating head.
Two-way valve, with secured, lead sealable, infinitely adjustable flow limitation. Direct setting in litres per hour. Readability of the set value possible from the outside, independent of the handwheel position, even with the actuator mounted. Valves with blind plugs can be retrofitted with Classic measuring valves. All DN 15 and DN 20 valves with internal thread are suitable for copper pipe with compression fittings. 
Valve body and parts coming into contact with the medium made of dezincification resistant brass, plastic, stainless steel, EPDM or PTFE. Maintenance-free spindle sealing.
Cocon QTZ are characterised by easy adjustability, compact dimensions and best control quality.


  • Main function: Pressure independent control valve
  • Medium: Water, Water-glycol mixture
  • Nominal size: DN 20
  • Connections: Internal thread
  • Connection size: Rp 3/4
  • Control range: 250 - 1,800 l/h
  • Differential pressure p1-p3: 18 - 600 kPa
  • kvs: 3.1
  • Operating temperature: -10 - 120 °C
  • Pressure rating: PN 25
  • Max. differential pressure: 6 bar
  • Presetting: Yes
  • Presetting blockable: Yes, lead sealable
  • Presetting indicator: Yes
  • Shutoff: Yes
  • Measuring connection: Yes
  • Measuring valve: Classic
  • Measuring method: Differential pressure p1-p3
  • Body material: DZR brass
  • Type: Straight
  • Connection actuator: M 30 x 1.5
  • Control stroke: 4 mm
  • Installation location: Supply or return
  • Thermal insulation shell: Available as accessory
Art.-Nr.: 1149306
EAN: 4026755422023
Hersteller: Oventrop GmbH & Co. KG
Technische Änderungen vorbehalten

Actuators

Aktor T 2P Thermal actuator, on/off control 230 V AC, normally closed, connection thread M 30 x 1.5
Item no. 1012415
Aktor T 2P Thermal actuator, on/off control 24 V AC / DC, normally closed, connection thread M 30 x 1.5
Item no. 1012416
Aktor T 2P Thermal actuator, on/off control 230 V AC, normally open, connection thread M 30 x 1.5
Item no. 1012425
Aktor T 2P Thermal actuator, on/off control 24 V AC / DC, normally open, connection thread M 30 x 1.5
Item no. 1012426
Aktor T 2P Thermal actuator, on/off control 230 V AC, normally closed with integrated auxiliary switch, connection thread M 30 x 1.5
Item no. 1012435
Aktor T 2P Thermal actuator, on/off control 24 V AC / DC, normally closed, M 30 x 1.5, cable length 2 m
Item no. 1012442
Aktor T 2P Thermal actuator, on/off control 230 V AC, normally closed, connection thread M 30 x 1.5, cable length 2 m
Item no. 1012452
Aktor T 2P Thermal actuator, on/off control 230 V AC, normally closed, connection thread M 30 x 1.5, cable length 5 m
Item no. 1012455
Aktor T 2P Thermal actuator, on/off control 230 V AC, normally closed, connection threadM 30 x 1.5, cable length 10 m
Item no. 1012459
Aktor M Motorised actuator, on/off control, with short running time (3 s) 230 V AC, connection thread M 30 x 1.5
Item no. 1012710
Aktor M Motorised actuator, on/off control, with short running time (3 s) 24 V AC / DC, connection thread M 30 x 1.5
Item no. 1012711
Aktor M ST L NC Motorised actuator, modulating with 0 - 10 V 24 V AC / DC, modulating proportional actuator, connection thread M 30 x 1.5
Item no. 1012717
Aktor M Electromotive actuator, modulating with 0 - 10 V modulating with 0 - 10 V, 24 V AC / DC, modulating proportional actuator, connection thread M 30 x 1.5
Item no. 1012725
Aktor M Motorised actuator, modulating with 0 - 10 V 24 V AC / DC, modulating proportional actuator with position feedback, connection thread M 30 x 1.5
Item no. 1012726
Aktor M Motorised actuator, on/off and floating control 230 V AC, connection thread M 30 x 1.5
Item no. 1012729
Aktor M Motorised actuator with Modbus RTU interface 24 V AC / DC, connection thread M 30 x 1.5, suitable for Cocon QTZ
Item no. 1012745
Aktor M Motorised actuator with KNX interface 21 - 32 V (from KNX bus), connection thread M 30 x 1.5
Item no. 1012746
Electrothermal actuator "Aktor T 2P" "M NC", 120 V, closed with current "off", two point, M 30 x 1,5, may only be installed in approved countries outside the EU
Item no. 1012420

Dimensions

Dimensions of article

Length Width Height Weight
95 mm 110 mm 95 mm 1,09 kg

Packing units

Type Qty. Length Width Height Weight
Unknown 1 0 mm 0 mm 0 mm 0 kg
Unknown 10 0 mm 0 mm 0 mm 0 kg

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ETIM

Klassifizierung
ETIM 7.0 EC011312
Pressure-compensated control valve
Property Value
Height 63.8 mm
Material quality Dezincification resistant brass (DZR)
Suitable for glycol
Max. pressure difference 600 kPa
Volume flow 0.18 - 1.3
Suitable for liquids
Suitable for gases
Article compression class PN 25
Max. medium temperature (continuous) 120 °C
Min. medium temperature (continuous) -10 °C
Suitable for steam
Housing material Brass
Nominal inner diameter DN 20