Eclipse 300
Thermostatic Radiator Valves
With automatic flow limitation for large radiators and low temperature spreads

The thermostatic radiator valve Eclipse 300 has a unique integrated flow limiter that eliminates overflows. The required flow rate can be adjusted directly at the valve with a twist. The adjusted flow will not be exceed even if there are load changes in the system, due to other valves closing or during morning start-up. The valve controls the flow rate independently from differential pressure. Therefore, complicated calculations to determine settings are not necessary.

Eclipse 300
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Perfect for renovation
Standard dimensions and easy flow sizing
Eclipse 300 with automatic flow limitation
Ideal for large radiators and low temperature spreads
Applications

Heating and cooling systems

Function

Control

Flow limitation

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

Flow range

The flow can be stepless pre-set within the range: 30-300 l/h

Delivery setting: Commissioning

Differential pressure (ΔpV)

Max. differential pressure: 60 kPa (<30 dB(A))

Min. differential pressure: 30 – 300 l/h = 20 kPa

Materials

Valve body: Corrosion resistant Gunmetal.

O-rings: EPDM rubber

Valve disc: EPDM rubber

Return spring: Stainless steel

Valve insert: Brass, PPS (polyphenylsulphide)

The complete thermostatic insert can be replaced using the HEIMEIER fitting tool without draining the system.

Spindle: Niro-steel spindle with double O-ring sealing.

Surface treatment

Valve body and fittings are nickel-plated.

Marking

THE, country code, flow direction arrow, DN, HF (High Flow) and KEYMARK-Designation.

Green protection cap.

Standards

Valves meet the following requirements:

– KEYMARK certified and tested to DIN EN 215, series D.

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. The male-threaded version (EN 16313), in conjunction with the appropriate compression fittings, permits connection to plastic, copper, precision steel or multilayer pipe.

Connection to thermostatic head and actuator

HEIMEIER M30x1,5

3951-02-000
Angle

*) SW1: DN 15 = 27 mm
SW2: DN 15 = 30 mm

Values H1 and H2 are at the bearing surface thermostatic head or actuator.

DN D Article Nr d2 l3 l4 l5 H1 Flow range [l/h]
15 Rp1/2 3951-02.000 R1/2 29 58 27 26 30-300
3952-02-000
Straight

*) SW1: DN 15 = 27 mm
SW2: DN 15 = 30 mm

Values H1 and H2 are at the bearing surface thermostatic head or actuator.

DN D Article Nr d2 I1 I2 H2 Flow range [l/h]
15 Rp1/2 3952-02.000 R1/2 66 95 21,5 30-300
3956-02-000
Straight with male thread G3/4

*) SW1: DN 15 = 27 mm
SW2: DN 15 = 30 mm

Values H1 and H2 are at the bearing surface thermostatic head or actuator.

DN Article Nr d1 d2 H2 Flow range [l/h]
15 3956-02.000 G3/4 R1/2 21,5 30-300
3950-02-000
Axial

*) SW1: DN 15 = 27 mm
SW2: DN 15 = 30 mm

Values H1 and H2 are at the bearing surface thermostatic head or actuator.

DN D Article Nr d2 l3 l4 H1 Flow range [l/h]
15 Rp1/2 3950-02.000 R1/2 29 58 32,5 30-300
Key-for-Eclipse-1000
Setting key

for Eclipse. Color orange.

Article Nr EAN
3930-02.142 4024052937714
Compression fitting

for copper or precision steel pipe according to DIN EN 1057/10305-1/2.
Female thread connection Rp1/2.
Metal-to-metal joint.
Brass nickel-plated.
Support sleeves should be used for a pipe wall thickness of 0.8 – 1 mm. Follow the specifications of the pipe manufacturer.

Ø Pipe DN Article Nr EAN
14 15 (1/2”) 2201-14.351 4024052174713
15 15 (1/2”) 2201-15.351 4024052175017
16 15 (1/2”) 2201-16.351 4024052175116
1300-12-170-500x500
Support sleeve

for copper or precision steel pipe with a 1 mm wall thickness.
Brass.

Ø Pipe L Article Nr EAN
15 26,0 1300-15.170 4024052127917
16 26,3 1300-16.170 4024052128419
1335-14-351
Compression fitting

for Alu/PEX multi-layer pipe according to DIN 16836.
Female thread connection Rp1/2.
Nickel-plated brass.

Ø Pipe Article Nr EAN
16 x 2 1335-16.351 4024052138616
1321-12-083
Double connection fitting

For clamping plastic, copper, precision steel or multi-layer pipes.
Nickel-plated brass.

L Article Nr EAN
G3/4 x R1/2 26 1321-12.083 4024052308415
3800-10-351
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.

Ø Pipe Article Nr EAN
12 3831-12.351 4024052214211
14 3831-14.351 4024052214310
15 3831-15.351 4024052214617
16 3831-16.351 4024052214914
18 3831-18.351 4024052215218
1313-15-351-500x500
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.

Ø Pipe Article Nr EAN
15 1313-15.351 4024052515851
18 1313-18.351 4024052516056
1311-14-351-500x500
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.

Ø Pipe Article Nr EAN
12x1,1 1315-12.351 4024052136018
14x2 1311-14.351 4024052134618
16x1,5 1315-16.351 4024052136117
16x2 1311-16.351 4024052134816
17x2 1311-17.351 4024052134915
18x2 1311-18.351 4024052135110
20x2 1311-20.351 4024052135318
1331-16-351-500x500
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.

Ø Pipe Article Nr EAN
16x2 1331-16.351 4024052137312
18x2 1331-18.351 4024052137411
9721-00-000-1000
Fitting tool

complete with case, box spanner and replacement seals, for replacing thermostatic inserts without draining off the heating system (for DN 10 to DN 20).

Article Nr EAN
Fitting tool 9721-00.000 4024052298914
9790-01-890-1000
Measuring spindle for fitting tool

for differential pressure measurement at thermostatic valve bodies with TA-SCOPE balancing instrument.

Article Nr EAN
9790-01.890 4024052942114
3950-00.300
Replacement thermostatic insert

with automatic flow limiter for Eclipse 300.
For thermostatic valve bodies marked with "HF" (High Flow), from 2021.

Article Nr EAN
3951-00.300 4024052054428
Download documentation for the selected product here.
Download all images for the seletced product here. The images are available in JPG, GIF and EPS format (for print media).
3951-02.000
Angle
3952-02.000
Straight
3956-02.000
Straight
with male thread G3/4
Axial

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