Features & Benefits
Integrated flow limiter
Eliminates over flows and self balances the system
Simple adjustment of the flow
To various heating loads
For out-of-true installation offsetting up to 6° on each side
Adjustable fitting for all wall structures, 30 mm depth compensation
Technical Information
Applications:
Floor heating systems, wall heating systems, combined floor/radiator heating systems
Functions:
Multibox Eclipse K:
Individual room temperature control,
Automatic flow limiting,
Shut-off,
Venting
Multibox Eclipse RTL:
Maximum limitation of the return temperature,
Automatic flow limiting,
Shut-off,
Venting
Multibox Eclipse K-RTL:
Individual room temperature control,
Maximum limitation of the return temperature,
Automatic flow limiting,
Shut-off,
Venting
Dimensions:
Valve body DN 15.
The flush box has an overall depth of 60 mm.
Flexible mounting thanks to variable spacing between flush box and cover of up to 30 mm.
The cover can compensate for slanted mounting of the flush box of up to 6° on each side.
See also Dimensions.
Pressure class:
PN 10
Temperature:
Max. working temperature: 90°C
Min. working temperature: 2°C
For all Multibox models, ensure that the system supply temperature is suitable for setting up the floor heating system.
See also Information!
Setting range:
Thermostatic head K: 6°C to 28°C
Return temperature limiter RTL: 0°C to 50°C
Flow range:
The flow can be stepless pre-set within the range: 10-150 l/h.
Factory setting: Commissioning
Differential pressure (ΔpV):
Max. differential pressure:
60 kPa (<30 dB(A))
Min. differential pressure:
10 – 100 l/h = 10 kPa
100 – 150 l/h = 15 kPa
Material:
Valve body: Corrosion resistant Gunmetal
O-rings: EPDM rubber
Valve disc: EPDM rubber
Return spring: Stainless steel
Valve insert: Brass, PPS (polyphenylsulphide) and SPS (syndiotactic polystyrene)
Spindle: Niro-steel spindle with double O-ring sealing. The outer O-ring can be replaced under pressure.
Plastic parts of ABS and PA.
Sensor element: Thermostatic head K with liquid filled sensor. Return temperature limiter (RTL) filled with an expansible medium.
Surface treatment:
Cover and visible graduation cap in white RAL 9016.
Marking:
THE, flow direction arrows, II+ Designation.
Pipe connection:
Pipe-side G3/4 adaptor with cone suitable for compression fittings for plastic, copper, precision steel and multi-layer pipe.
Articles
with thermostatic valve
Multibox Eclipse K
with thermostatic valve
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_Heimeier/Drawings/Multibox%20Eclipse/Drawings/9318-00-800.jpg)
Colour | EAN | Article No |
Cover and thermostatic head K white RAL 9016 | 4024052902415 | 9318-00.800 |
with thermostatic valve and return temperature limiter (RTL)
Multibox Eclipse K-RTL
with thermostatic valve and return temperature limiter (RTL)
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_Heimeier/Drawings/Multibox%20Eclipse/Drawings/9317-00-800.jpg)
Colour | EAN | Article No |
Cover and thermostatic head K white RAL 9016 | 4024052902316 | 9317-00.800 |
with return temperature limiter (RTL)
Multibox Eclipse RTL
with return temperature limiter (RTL)
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_Heimeier/Drawings/Multibox%20Eclipse/Drawings/9319-00-800.jpg)
Colour | EAN | Article No |
Cover and RTL thermostatic head white RAL 9016 | 4024052902514 | 9319-00.800 |
for copper or precision steel pipe according to DIN EN 1057/10305-1/2. Connection male thread G3/4 according to DIN EN 16313 (Eurocone). Metal-to-metal joint. Nickel-plated brass. With a pipe wall thickness of 0.8-1 mm insert supporting sleeves. Heed pipe manufacturer’s technical advice.
Compression fitting
for copper or precision steel pipe according to DIN EN 1057/10305-1/2.
Connection male thread G3/4 according to DIN EN 16313 (Eurocone).
Metal-to-metal joint.
Nickel-plated brass.
With a pipe wall thickness of 0.8-1 mm insert supporting sleeves. Heed pipe manufacturer’s technical advice.
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_Heimeier/Drawings/Accessories%20for%20radiator%20valves/Drawings_w-o-M/3800-10-351.jpg)
Ø Pipe | EAN | Article No |
12 | 4024052214211 | 3831-12.351 |
15 | 4024052214617 | 3831-15.351 |
16 | 4024052214914 | 3831-16.351 |
18 | 4024052215218 | 3831-18.351 |
for copper or precision steel pipe with a 1 mm wall thickness. Brass.
Support sleeve
for copper or precision steel pipe with a 1 mm wall thickness.
Brass.
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Drawings/TBV-C/With_M/1300-12-170-L.gif)
Ø Pipe | L | EAN | Article No |
12 | 25,0 | 4024052127016 | 1300-12.170 |
15 | 26,0 | 4024052127917 | 1300-15.170 |
16 | 26,3 | 4024052128419 | 1300-16.170 |
18 | 26,8 | 4024052128815 | 1300-18.170 |
when maximum installation depth exceeded.Brass nickel-plated.
Spindle extension for RTL thermostatic head with Multibox Eclipse RTL
when maximum installation depth exceeded.
Brass nickel-plated.
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_Heimeier/Drawings/RTL/Drawings/9153-20-700.jpg)
L | EAN | Article No |
20 | 4024052500215 | 9153-20.700 |
for Alu/PEX multi-layer pipe according to DIN 16836. Connection male thread G3/4 according to DIN EN 16313 (Eurocone).Nickel-plated brass.
Compression fitting
for Alu/PEX multi-layer pipe according to DIN 16836.
Connection male thread G3/4 according to DIN EN 16313 (Eurocone).
Nickel-plated brass.
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_Heimeier/Drawings/Regutec/Drawings/1331-14-351.jpg)
Ø Pipe | EAN | Article No |
16x2 | 4024052137312 | 1331-16.351 |
for plastic pipe according to DIN 4726, ISO 10508. PE-X: DIN 16892/16893, EN ISO 15875; PB: DIN 16968/16969. Connection male thread G3/4 according to DIN EN 16313 (Eurocone). Nickel-plated brass.
Compression fitting
for plastic pipe according to DIN 4726, ISO 10508. PE-X: DIN 16892/16893, EN ISO 15875; PB: DIN 16968/16969.
Connection male thread G3/4 according to DIN EN 16313 (Eurocone).
Nickel-plated brass.
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_Heimeier/Drawings/Accessories%20for%20radiator%20valves/Drawings_w-o-M/1311-12-351.jpg)
Ø Pipe | EAN | Article No |
14x2 | 4024052134618 | 1311-14.351 |
16x2 | 4024052134816 | 1311-16.351 |
17x2 | 4024052134915 | 1311-17.351 |
18x2 | 4024052135110 | 1311-18.351 |
20x2 | 4024052135318 | 1311-20.351 |
White RAL 9016.
RTL Thermostatic head especially for Multibox Eclipse RTL for reverse-flow temperature control
White RAL 9016.
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_Heimeier/Drawings/Multi_V/Drawings_M/6500-00-500_M.gif)
Setting range | EAN | Article No |
0 °C - 50 °C | 4024052595112 | 6510-00.500 |
for copper or precision steel pipe according to DIN EN 1057/10305-1/2 and stainless steel pipe. Connection male thread G3/4 according to DIN EN 16313 (Eurocone). Soft sealed, max. 95°C. Nickel-plated brass.
Compression fitting
for copper or precision steel pipe according to DIN EN 1057/10305-1/2 and stainless steel pipe.
Connection male thread G3/4 according to DIN EN 16313 (Eurocone).
Soft sealed, max. 95°C.
Nickel-plated brass.
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_Heimeier/Drawings/Accessories%20for%20radiator%20valves/Drawings_w-o-M/1313-15-351.jpg)
Ø Pipe | EAN | Article No |
15 | 4024052515851 | 1313-15.351 |
18 | 4024052516056 | 1313-18.351 |
with automatic flow limiter for Eclipse.
Replacement thermostatic insert
with automatic flow limiter for Eclipse.
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_Heimeier/Drawings/Eclipse/Drawings/3930-02-300.jpg)
EAN | Article No |
4024052940912 | 3930-02.300 |
Replacement for Multibox K/Multibox Eclipse K, Multibox RTL/Multibox Eclipse RTL and Multibox K-RTL/Multibox Eclipse K-RTL.
Frame and cover plate
Replacement for Multibox K/Multibox Eclipse K, Multibox RTL/Multibox Eclipse RTL and Multibox K-RTL/Multibox Eclipse K-RTL.
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_Heimeier/Drawings/Multibox/drawings/9300-00-800.jpg)
Colour | EAN | Article No |
White RAL 9016 | 4024052489671 | 9300-00.800 |
for Eclipse. Color orange.
Setting key
for Eclipse. Color orange.
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_Heimeier/Drawings/Eclipse/Drawings/Key-for%20Eclipse.jpg)
EAN | Article No |
4024052937714 | 3930-02.142 |
specially for converting Multibox K/Multibox Eclipse K into Multibox K-RTL/Multibox Eclipse K-RTL.
RTL insert and RTL thermostatic head
specially for converting Multibox K/Multibox Eclipse K into Multibox K-RTL/Multibox Eclipse K-RTL.
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_Heimeier/Drawings/Multibox/drawings/9303-00-300_6500-00-500.jpg)
EAN | Article No | |
RTL insert | 4024052497812 | 9303-00.300 |
RTL thermostatic head | 4024052275311 | 6500-00.500 |
when maximum installation depth exceeded.
Spindle extension for K thermostatic head with Multibox Eclipse K and Multibox Eclipse K-RTL
when maximum installation depth exceeded.
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_Heimeier/Drawings/Thermostatic%20heads/Drawings/2201-20-700.gif)
L | EAN | Article No | |
Brass nickel-plated | |||
20 | 4024052528813 | 2201-20.700 | |
30 | 4024052528912 | 2201-30.700 | |
Plastic, black | |||
15 | 4024052553310 | 2001-15.700 | |
30 | 4024052165018 | 2002-30.700 |
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