RTL
Return temperature limiter with and without presetting
Among other things, the return temperature limiter RTL is used to limit the return temperatures of radiators or combined floor/radiator systems to equalize the temperature of smaller floor surfaces (up to ca. 15 m2).
Product branding
Features and Benefits
Models with presetting and automatic flow limitation (AFC)
Body made of corrosion-resistant gunmetal
Stainless spindle with double O-ring seal
Outer O-ring can be replaced while under pressure
Concealed limiting or blocking using stop clips
Applications
Heating systems.
Functions
Automatic flow limitation with Eclipse valves.
Maximum limitation of the return temperature.
Shut-off
Stepless precision presetting with V-exact II valves.
Temperature range is limited on both ends and can be blocked using covered stop clips.
Dimension [DN]
DN 15
Pressure class [PN]
PN 10
Differential pressure (ΔpV)
Flow range
Temperature
Max. sensor temperature: 60°C
Max. working temperature: 120°C
Min. working temperature: 2°C.
Control behavior
Control behavior: Proportional controller without auxilliary energy.
Specific extension
0.10 mm/K
Valve stroke limiter
Marking
THE, flow direction arrow, DN, II+ Designation.
Colour
White RAL 9016
Pipe connection
The external-threaded version, in conjunction with the appropriate compression fittings, permits connection to plastic pipe.
The internal-threaded version for connection to threaded pipe, or in conjunction with compression fittings, to copper precision steel or multi-layer pipe (only DN 15).
Material
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.
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