Logo Oventrop GmbH & Co. KG
Download GAEB

Cocon QTZ Pressure independent control valve with internal thread PN 25
DN 15, Rp ½, 200-1300 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 15
  • Connections: Internal thread
  • Connection size: Rp 1/2
  • Control range: 200 - 1,300 l/h
  • Differential pressure p1-p3: 16 - 600 kPa
  • kvs: 2.1
  • Operating temperature: -10 - 120 °C
  • Presetting: Yes
  • Presetting blockable: Yes, lead sealable
  • Shutoff: Yes
  • Measuring connection: Yes
  • Measuring valve: Classic
  • Body material: DZR brass
  • Connection actuator: M 30 x 1.5
  • Installation location: Supply or return
  • Thermal insulation shell: Available as accessory

Art.-Nr.: 1149404
EAN: 4026755422054
Hersteller: Oventrop GmbH & Co. KG
Technische Änderungen vorbehalten


Download GAEB