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RTL

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).

Información de Producto

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).

Key features

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

Technical description

Applications area:

Heating systems

Functions:

Maximum limitation of the return temperature.
Automatic flow limitation with Eclipse valves.
Stepless precision presetting with V-exact II valves.
Shut-off.
Temperature range is limited on both ends and can be blocked using covered stop clips.

Control behavior:

Proportional controller without auxilliary energy.

Dimensions:

DN 15

Pressure class:

PN 10

Temperature:

Max. working temperature: 120°C
Min. working temperature: 2°C

Maximum sensor temperature:

60° C

Specific extension:

0.10 mm/K,
Valve stroke limiter

Flow range Eclipse:

The flow can be stepless pre-set within the range: 10-150 l/h.
Delivery setting: Commissioning setting
(Max. nominal flow qmN at 10 kPa respecting EN 215: 115 l/h)

Differential pressure (ΔpV) Eclipse:

Max. differential pressure:
60 kPa (<30 dB(A))
Min. differential pressure:
10 – 100 l/h = 10 kPa
100 – 150 l/h = 15 kPa

Material:

RTL thermostatic head:
ABS, PA6.6GF30, brass, steel,
Thermostat filled with an expansible medium.

Valve body: corrosion resistant Gunmetal
O-rings: EPDM rubber
Valve disc: EPDM rubber
Return spring: Stainless steel
Valve insert: Brass, PPS
Spindle: Niro-steel spindle with double O-ring sealing. The outer O-ring can be replaced under pressure.

Surface treatment:

Valve body and fittings are nickel-plated.

Marking:

THE, flow direction arrow, DN -Designation. II+ -Designation.

Colour:

White RAL 9016

Pipe connection:

The female-threaded version is designed for connection to threaded pipe, or in conjunction with compression fittings, to copper precision steel or multi-layer pipe (only DN 15). The male-threaded version, in conjunction with the appropriate compression fittings, permits connection to plastic pipe.

The products, texts, photographs, graphics and diagrams in this document may be subject to alteration by IMI Hydronic Engineering without prior notice or reasons being given. For the most up to date information about our products and specifications, please visit www.imi-hydronic.com.

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