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Duolux

Duolux

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.

Technical SpecificationsDuolux_EN_lq.pdf

Product branding

imi_heimeier

Features and Benefits

One-pipe version with mass flow rate distribution 50/50%, simple definition of heating capacity correction factors

Two-pipe version with V-exact II presetting

Various thermostatic valve bodies adapt to every type of installation

Body made of nickel-plated corrosion-free gunmetal

Applications

Two- and one-pipe heating systems

Functions

Control

Shut-off

Stepless presetting

Pressure class [PN]

PN 10

Temperature

Max. working temperature: 120°C, with protection cap or actuator 100°C.

Min. working temperature: -10°C

Marking

Two-pipe:
Thermostatic valve body: THE, country code, flow direction arrow, DN and KEYMARK-Designation. II+ -Designation.
White protection cap.
Distributor: THE, flow direction arrows.

One-pipe:
Thermostatic valve body: THE, flow direction arrow, DN.
Axial and straight: Blue protection cap. Blue stuffing box.
Double angle: Black protection cap. Black stuffing box.
Distributor: 50/50, THE, flow direction arrows.

Connection to thermostatic head and actuator

HEIMEIER M30x1,5

Pipe connection

M24x1,5 external thread for compression fittings for copper or precision steel pipe.

Material

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 (one-pipe): Brass
Valve insert V-exact II (two-pipe): Brass, PPS (polyphenylsulphide) and SPS (syndiotactic polystyrene).
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.

The table below assists you in finding the relevant product based on its variant. For more details, please download the datasheet above.