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PICV Valve

COCON

Introduction

The pressure independent control valve “Cocon QTZ” with automatic flow control is a compact valve combination consisting of a flow regulator and a regulating valve. The nominal value of the flow regulator can be set with the help of an easily accessible handhweel.
The pressure independent control valve can be equipped with an actuator, temperature controller or manual head(connection thread M 30 x 1.5). The valve can be used for dynamic hydronic balancing and temperature control of appliances or sections of the system in chilled ceilings, fan coil units and convectors as well as central heating and surface heating systems.

  • Constant, high valve authority
  • Even with the actuator in place,the required nominal values can be set
  • The set nominal values can be read off even with the actuator in place
  • Excellent optical display of the set values in any installation position
  • The nominal values in l/h can be set directly without conversion.The nominal value range of the valve is imprinted on the handwheel in a prominent position.
  • The locking ring can be lead sealed to secure the setting from unauthorized access
  • The pump setting can be optimized with the help of a flow-meter(e.g.”OV-DMC) which is connected to the pressure test points of the valve.For this purpose the pump head is reduced until the regulating valves “Cocon” are just working within the control range
  • Linear characteristic line is actuator driven
MODEL “Cocon QTZ” DN 10 to DN 32
Service Cold and Hot water, water with max, 50% Volume of glycol
Valve Body Dezincification resistant brass
Pressure Rating PN 16
Temperature Range -10 degree C to +120 degree C
Connections Inlet port coupling outlet port female thread
End Connections Thread
MATERIAL Body Dezincification resistant brass
Stem Stainless steel
Seal EPDM or PTFE

 

MODEL “Cocon QTR” DN 40 to DN 50
Service Cold and Hot water, water with max, 50% Volume of glycol
Valve Body Bronze
Pressure Rating PN 16
Temperature Range -10 degree C to +120 degree C
Flanges Both ports female thread according to EN 10226 or both ports male thread
End Connections Thread
MATERIAL Body Bronze
Inner parts DZR Brass
Stem and disc Stainless steel
Seal EPDM or PTFE

 

MODEL “Cocon QFC” DN 40 to DN 150
Service Cold and Hot water, water with max, 50% Volume of glycol
Valve Body Cast iron (EN-GJL-250 according to DIN EN 1561)
Pressure Rating PN 16
Temperature Range -10 degree C to +120 degree C
Flanges DIN EN 1092-2 lengths according to DIN EN 558-1,basic series 1
End Connections Flange
MATERIAL Body Cast iron
Bonnet Bronze
Stem and disc Dezincification resistant brass
Seal EPDM
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