Radiator connection valves series – one- and two-pipe
Duolux is a complete series of valves for one- and two-pipe heating systems. The valves are connected to radiators in single-storey heating circuits. Centre-to-centre distance of pipe connections 35 mm.
Key features
One-pipe version with mass flow rate distribution 50/50%, simple definition of heating capacity correction factors
Two-pipe version with presetting available
Various thermostatic valve bodies adapt to every type of installation
Body made of nickel-plated corrosion-free gunmetal
Technical description
Applications area:
Two- and one-pipe heating systems
Function:
Control
Presetting
Shut-off
Dimensions:
DN 15
Pressure class:
PN 10
Temperature:
Max. working temperature: 120°C, with protection cap or actuator 100°C.
Min. working temperature: -10°C.
Materials:
Distributor:
Valve body: Corrosion resistant Gunmetal.
O-rings: EPDM rubber
Valve disc: EPDM rubber
Spindle: Brass
Thermostatic valve body:
Valve body: Corrosion resistant Gunmetal.
O-rings: EPDM rubber
Valve disc: EPDM rubber
Return spring: Stainless steel
Valve insert: Brass
The complete thermostatic insert can be replaced using the fitting tool without draining the system.
Spindle: Niro-steel spindle with double O-ring sealing.
Other:
See "Articles" and "Accessories".
Surface treatment:
Valve body and fittings are nickel-plated.
Marking:
Two-pipe:
Thermostatic valve body: THE, country code, flow direction arrow, DN and KEYMARK-Designation. II+ -Designation.
Black protection cap.
Distributor: THE, flow direction arrows.
One-pipe:
Thermostatic valve body: THE, flow direction arrow, DN.
Blue protection cap. Blue stuffing box.
Distributor: 50/50, THE, flow direction arrows.
Pipe connection:
M24x1,5 male thread for compression fittings for copper or precision steel pipe.
Connection to thermostatic head and actuator:
HEIMEIER M30x1,5
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