Radiator Plain 3K
Great cast iron radiator
Plain 3K is another cast iron model of Plain family. Radiator’s three-column construction allowed to increase the surface area of the radiator and its thermal efficiency also. 3K model, the same as the rest of the Plain range, is characterized by minimalism, an economical and simply form placed in a long-lived material like cast iron. This model stands out by its slenderness and the design refers to the classic form of section radiators. Available in RAL palette and dozen of special finishes.
Cast iron radiators are produced using a traditional casting process. Due to the nature of this manufacturing method, slight variations are to be expected. Please be aware that:
- The surface may appear rough or porous,
- Minor irregularities and casting imperfections may occur,
- Each radiator is individually cast and therefore one of a kind.
These features are not defects—they are a natural outcome of the casting process and contribute to the radiator’s authentic, classic appeal.
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Large heat output, considerable corrosion resistance, high working pressure
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Minimalistic design
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Original and functional decorative element
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In addition to the 200 standard RAL colors, we also offer a range of special colors as well as decorative finishes.

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Technical parameters
Included accessories :
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Straps for carrying the radiator
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Fixing brackets - only for the wall-mounted version
- Wall ties - free standing version only
- Connection kit - reducing bushes 3 pcs, blanking plug 1 pc, bleed valve 1 pc.
- Joining nipples and gaskets - only for radiators delivered in parts
- Working pressure: to 1 MPa
- Maximum operating temperature up to 95°C
Technical table
Hydronic Radiator
| A [mm] |
B [mm] |
C [mm] |
D [mm] |
D' [mm] |
D'' [mm] |
75/65/20oC [W] |
55/45/20oC [W] |
[dm3] |
[kg] |
Product Code |
|---|---|---|---|---|---|---|---|---|---|---|
| 460 | 80 | 360 | - | - | - | 97 | 50 | 2.10 | 8.3 | WGP3B046008 |
| 460 | 278 | 360 | 82 | 98 | - | 290 | 151 | 6.30 | 26.21 | WGP3B046027 |
| 460 | 360 | 360 | - | 98 | - | 386 | 201 | 8.40 | 34.7 | WGP3B046036 |
| 460 | 442 | 360 | 246 | 98 | - | 483 | 251 | 10.50 | 43.2 | WGP3B046044 |
| 460 | 524 | 360 | - | 98 | - | 580 | 301 | 12.60 | 51.7 | WGP3B046052 |
| 460 | 606 | 360 | 246 | 180 | - | 676 | 351 | 14.70 | 60.19 | WGP3B046060 |
| 460 | 688 | 360 | 328 | 180 | - | 773 | 402 | 16.80 | 68.69 | WGP3B046068 |
| 460 | 770 | 360 | 410 | 180 | - | 869 | 452 | 18.90 | 77.18 | WGP3B046077 |
| 460 | 852 | 360 | 492 | 180 | - | 966 | 502 | 21.00 | 85.68 | WGP3B046085 |
| 460 | 934 | 360 | 574 | 180 | 1063 | 552 | 23.10 | 94.18 | WGP3B046093 | |
| 460 | 1016 | 360 | 656 | 180 | 164 | 1159 | 602 | 25.20 | 102.67 | WGP3B046101 |
| 460 | 1098 | 360 | 738 | 180 | 164 | 1256 | 653 | 27.30 | 111.17 | WGP3B046109 |
| 460 | 1180 | 360 | 820 | 180 | 246 | 1352 | 703 | 29.40 | 119.66 | WGP3B046118 |
| 460 | 1262 | 360 | 902 | 180 | 246 | 1449 | 753 | 31.50 | 128.16 | WGP3B046126 |
| 460 | 1344 | 360 | 984 | 180 | 246 | 1546 | 803 | 33.60 | 136.66 | WGP3B046134 |
| 460 | 1426 | 360 | 1066 | 180 | 246 | 1642 | 853 | 35.70 | 145.15 | WGP3B046142 |
| 520 | 80 | 360 | - | - | - | 97 | 50 | 2.10 | 9 | WGP3F052008 |
| 520 | 278 | 360 | - | - | - | 290 | 151 | 6.30 | 27.61 | WGP3F052027 |
| 520 | 360 | 360 | - | - | - | 386 | 201 | 8.40 | 36.1 | WGP3F052036 |
| 520 | 442 | 360 | - | - | - | 483 | 251 | 10.50 | 44.6 | WGP3F052044 |
| 520 | 524 | 360 | - | - | - | 580 | 301 | 12.60 | 53.1 | WGP3F052052 |
| 520 | 606 | 360 | - | - | - | 676 | 351 | 14.70 | 61.59 | WGP3F052060 |
| 520 | 688 | 360 | - | - | - | 773 | 402 | 16.80 | 70.09 | WGP3F052068 |
| 520 | 770 | 360 | - | - | - | 869 | 452 | 18.90 | 78.58 | WGP3F052077 |
| 520 | 852 | 360 | - | - | - | 966 | 502 | 21.00 | 87.08 | WGP3F052085 |
| 520 | 934 | 360 | - | - | - | 1063 | 552 | 23.10 | 95.58 | WGP3F052093 |
| 520 | 1016 | 360 | - | - | - | 1159 | 602 | 25.20 | 104.07 | WGP3F052101 |
| 520 | 1098 | 360 | - | - | - | 1256 | 653 | 27.30 | 113.27 | WGP3F052109 |
| 520 | 1180 | 360 | - | - | - | 1352 | 703 | 29.40 | 122.46 | WGP3F052118 |
| 520 | 1262 | 360 | - | - | - | 1449 | 753 | 31.50 | 130.26 | WGP3F052126 |
| 520 | 1344 | 360 | - | - | - | 1546 | 803 | 33.60 | 139.46 | WGP3F052134 |
| 520 | 1426 | 360 | - | - | - | 1642 | 853 | 35.70 | 147.25 | WGP3F052142 |
| 560 | 80 | 460 | - | - | - | 119 | 63 | 2.60 | 9.92 | WGP3B056008 |
| 560 | 278 | 460 | 82 | 98 | - | 357 | 190 | 7.80 | 31.07 | WGP3B056027 |
| 560 | 360 | 460 | - | 98 | - | 476 | 253 | 10.40 | 41.19 | WGP3B056036 |
| 560 | 442 | 460 | 246 | 98 | - | 595 | 316 | 13.00 | 51.31 | WGP3B056044 |
| 560 | 524 | 460 | - | 98 | - | 714 | 380 | 15.60 | 61.42 | WGP3B056052 |
| 560 | 606 | 460 | 246 | 180 | - | 833 | 443 | 18.20 | 71.54 | WGP3B056060 |
| 560 | 688 | 460 | 328 | 180 | - | 952 | 506 | 20.80 | 81.66 | WGP3B056068 |
| 560 | 770 | 460 | 410 | 180 | - | 1071 | 569 | 23.40 | 91.77 | WGP3B056077 |
| 560 | 852 | 460 | 492 | 180 | - | 1190 | 633 | 26.00 | 101.89 | WGP3B056085 |
| 560 | 934 | 460 | 574 | 180 | 164 | 1309 | 696 | 28.60 | 112.01 | WGP3B056093 |
| 560 | 1016 | 460 | 656 | 180 | 164 | 1428 | 759 | 31.20 | 122.13 | WGP3B056101 |
| 560 | 1098 | 460 | 738 | 180 | 246 | 1547 | 822 | 33.80 | 132.24 | WGP3B056109 |
| 560 | 1180 | 460 | 820 | 180 | 246 | 1666 | 886 | 36.40 | 142.36 | WGP3B056118 |
| 560 | 1262 | 460 | 902 | 180 | 246 | 1785 | 949 | 39.00 | 152.48 | WGP3B056126 |
| 560 | 1344 | 460 | 984 | 180 | 246 | 1904 | 1012 | 41.60 | 162.6 | WGP3B056134 |
| 560 | 1426 | 460 | 1066 | 180 | 246 | 2023 | 1075 | 44.20 | 172.71 | WGP3B056142 |
| 620 | 80 | 460 | - | - | - | 119 | 63 | 2.60 | 10.52 | WGP3F062008 |
| 620 | 278 | 460 | - | - | - | 357 | 190 | 7.80 | 32.27 | WGP3F062027 |
| 620 | 360 | 460 | - | - | - | 476 | 253 | 10.40 | 42.39 | WGP3F062036 |
| 620 | 442 | 460 | - | - | - | 595 | 316 | 13.00 | 52.51 | WGP3F062044 |
| 620 | 524 | 460 | - | - | - | 714 | 380 | 15.60 | 62.62 | WGP3F062052 |
| 620 | 606 | 460 | - | - | - | 833 | 443 | 18.20 | 72.74 | WGP3F062060 |
| 620 | 688 | 460 | - | - | - | 952 | 506 | 20.80 | 82.86 | WGP3F062068 |
| 620 | 770 | 460 | - | - | - | 1071 | 569 | 23.40 | 92.97 | WGP3F062077 |
| 620 | 852 | 460 | - | - | - | 1190 | 633 | 26.00 | 103.09 | WGP3F062085 |
| 620 | 934 | 460 | - | - | - | 1309 | 696 | 28.60 | 113.21 | WGP3F062093 |
| 620 | 1016 | 460 | - | - | - | 1428 | 759 | 31.20 | 123.33 | WGP3F062101 |
| 620 | 1098 | 460 | - | - | - | 1547 | 822 | 33.80 | 134.04 | WGP3F062109 |
| 620 | 1180 | 460 | - | - | - | 1666 | 886 | 36.40 | 144.76 | WGP3F062118 |
| 620 | 1262 | 460 | - | - | - | 1785 | 949 | 39.00 | 154.28 | WGP3F062126 |
| 620 | 1344 | 460 | - | - | - | 1904 | 1012 | 41.60 | 165 | WGP3F062134 |
| 620 | 1426 | 460 | - | - | - | 2023 | 1075 | 44.20 | 174.51 | WGP3F062142 |
| 660 | 80 | 560 | - | - | - | 138 | 72 | 2.90 | 11.84 | WGP3B066008 |
| 660 | 278 | 560 | 82 | 98 | - | 414 | 217 | 8.70 | 36.84 | WGP3B066027 |
| 660 | 360 | 560 | - | 98 | - | 552 | 290 | 11.60 | 48.87 | WGP3B066036 |
| 660 | 442 | 560 | 246 | 98 | - | 690 | 362 | 14.50 | 60.91 | WGP3B066044 |
| 660 | 524 | 560 | - | 98 | - | 828 | 435 | 17.40 | 72.95 | WGP3B066052 |
| 660 | 606 | 560 | 246 | 180 | - | 966 | 507 | 20.30 | 84.99 | WGP3B066060 |
| 660 | 688 | 560 | 328 | 180 | - | 1104 | 580 | 23.20 | 97.03 | WGP3B066068 |
| 660 | 770 | 560 | 410 | 180 | - | 1242 | 652 | 26.10 | 109.07 | WGP3B066077 |
| 660 | 852 | 560 | 492 | 180 | - | 1380 | 725 | 29.00 | 121.1 | WGP3B066085 |
| 660 | 934 | 560 | 574 | 180 | 164 | 1518 | 797 | 31.90 | 133.14 | WGP3B066093 |
| 660 | 1016 | 560 | 656 | 180 | 164 | 1656 | 870 | 34.80 | 145.18 | WGP3B066101 |
| 660 | 1098 | 560 | 738 | 180 | 246 | 1794 | 942 | 37.70 | 157.22 | WGP3B066109 |
| 660 | 1180 | 560 | 820 | 180 | 246 | 1932 | 1015 | 40.60 | 169.26 | WGP3B066118 |
| 660 | 1262 | 560 | 902 | 180 | 246 | 2070 | 1087 | 43.50 | 181.3 | WGP3B066126 |
| 660 | 1344 | 560 | 984 | 180 | 246 | 2208 | 1160 | 46.40 | 193.33 | WGP3B066134 |
| 660 | 1426 | 560 | 1066 | 180 | 246 | 2346 | 1232 | 49.30 | 205.37 | WGP3B066142 |
| 720 | 80 | 560 | - | - | - | 138 | 72 | 2.90 | 12.64 | WGP3F072008 |
| 720 | 278 | 560 | - | - | - | 414 | 217 | 8.70 | 34.24 | WGP3F072027 |
| 720 | 360 | 560 | - | - | - | 552 | 290 | 11.60 | 46.27 | WGP3F072036 |
| 720 | 442 | 560 | - | - | - | 690 | 362 | 14.50 | 58.31 | WGP3F072044 |
| 720 | 524 | 560 | - | - | - | 828 | 435 | 17.40 | 70.35 | WGP3F072052 |
| 720 | 606 | 560 | - | - | - | 966 | 507 | 20.30 | 82.39 | WGP3F072060 |
| 720 | 688 | 560 | - | - | - | 1104 | 580 | 23.20 | 94.43 | WGP3F072068 |
| 720 | 770 | 560 | - | - | - | 1242 | 652 | 26.10 | 106.47 | WGP3F072077 |
| 720 | 852 | 560 | - | - | - | 1380 | 725 | 29.00 | 118.5 | WGP3F072085 |
| 720 | 934 | 560 | - | - | - | 1518 | 797 | 31.90 | 130.54 | WGP3F072093 |
| 720 | 1016 | 560 | - | - | - | 1656 | 870 | 34.80 | 142.58 | WGP3F072101 |
| 720 | 1098 | 560 | - | - | - | 1794 | 942 | 37.70 | 153.32 | WGP3F072109 |
| 720 | 1180 | 560 | - | - | - | 1932 | 1015 | 40.60 | 164.06 | WGP3F072118 |
| 720 | 1262 | 560 | - | - | - | 2070 | 1087 | 43.50 | 177.4 | WGP3F072126 |
| 720 | 1344 | 560 | - | - | - | 2208 | 1160 | 46.40 | 188.13 | WGP3F072134 |
| 720 | 1426 | 560 | - | - | - | 2346 | 1232 | 49.30 | 201.47 | WGP3F072142 |
| 860 | 80 | 760 | - | - | - | 176 | 92 | 3.8 | 15.38 | WGP3B086008 |
| 860 | 278 | 760 | 82 | 98 | - | 528 | 277 | 11.4 | 47.46 | WGP3B086027 |
| 860 | 360 | 760 | - | 98 | - | 704 | 369 | 15.2 | 63.04 | WGP3B086036 |
| 860 | 442 | 760 | 246 | 98 | - | 880 | 462 | 19 | 78.62 | WGP3B086044 |
| 860 | 524 | 760 | - | 98 | - | 1056 | 554 | 22.8 | 94.2 | WGP3B086044 |
| 860 | 606 | 760 | 246 | 180 | - | 1232 | 647 | 26.6 | 109.78 | WGP3B086060 |
| 860 | 688 | 760 | 328 | 180 | - | 1408 | 739 | 30.4 | 125.36 | WGP3B086068 |
| 860 | 770 | 760 | 410 | 180 | - | 1584 | 831 | 34.2 | 140.94 | WGP3B086077 |
| 860 | 852 | 760 | 492 | 180 | - | 1760 | 924 | 38 | 156.52 | WGP3B086085 |
| 860 | 934 | 760 | 574 | 180 | 164 | 1936 | 1016 | 41.8 | 172.1 | WGP3B086093 |
| 860 | 1016 | 760 | 656 | 180 | 164 | 2112 | 1108 | 45.6 | 187.68 | WGP3B086101 |
| 860 | 1098 | 760 | 738 | 180 | 246 | 2288 | 1201 | 49.4 | 203.25 | WGP3B086109 |
| 860 | 1180 | 760 | 820 | 180 | 246 | 2464 | 1293 | 53.2 | 218.83 | WGP3B086118 |
| 860 | 1262 | 760 | 902 | 180 | 246 | 2640 | 1385 | 57 | 234.41 | WGP3B086126 |
| 860 | 1344 | 760 | 984 | 180 | 246 | 2816 | 1478 | 60.8 | 249.99 | WGP3B086134 |
| 860 | 1426 | 760 | 1066 | 180 | 246 | 2992 | 1570 | 64.6 | 265.57 | WGP3B086142 |
| 920 | 80 | 760 | - | - | - | 176 | 92 | 3.80 | 16.18 | WGP3F092008 |
| 920 | 278 | 760 | - | - | - | 528 | 277 | 11.40 | 49.06 | WGP3F092027 |
| 920 | 360 | 760 | - | - | - | 704 | 369 | 15.20 | 64.64 | WGP3F092036 |
| 920 | 442 | 760 | - | - | - | 880 | 462 | 19.00 | 80.22 | WGP3F092044 |
| 920 | 524 | 760 | - | - | - | 1056 | 554 | 22.80 | 95.8 | WGP3F092052 |
| 920 | 606 | 760 | - | - | - | 1232 | 647 | 26.60 | 111.38 | WGP3F092060 |
| 920 | 688 | 760 | - | - | - | 1408 | 739 | 30.40 | 126.96 | WGP3F092068 |
| 920 | 770 | 760 | - | - | - | 1584 | 831 | 34.20 | 142.54 | WGP3F092077 |
| 920 | 852 | 760 | - | - | - | 1760 | 924 | 38.00 | 158.12 | WGP3F092085 |
| 920 | 934 | 760 | - | - | - | 1936 | 1016 | 41.80 | 173.7 | WGP3F092093 |
| 920 | 1016 | 760 | - | - | - | 2112 | 1108 | 45.60 | 189.28 | WGP3F092101 |
| 920 | 1098 | 760 | - | - | - | 2288 | 1201 | 49.40 | 205.65 | WGP3F092109 |
| 920 | 1180 | 760 | - | - | - | 2464 | 1293 | 53.20 | 222.03 | WGP3F092118 |
| 920 | 1262 | 760 | - | - | - | 2640 | 1385 | 57.00 | 236.81 | WGP3F092126 |
| 920 | 1344 | 760 | - | - | - | 2816 | 1478 | 60.80 | 253.19 | WGP3F092134 |
| 920 | 1426 | 760 | - | - | - | 2992 | 1570 | 64.60 | 267.97 | WGP3F092142 |
Connections
A – height B – width C1-C5 – connection spacing D – horizontal mounting spacing E – vertical mounting spacing F – distance from the lower mounting axis to the lower edge of the collector
Available sizes
3D visualization
Colours
Cast colors
Premium colors
Special colors
RAL colours
Download
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Electronic colour selection guide - cast iron products 2022
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Libraries DWG Plain 3K 460
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Libraries DWG Plain 3K 520
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Libraries DWG Plain 3K 560
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Libraries DWG Plain 3K 660
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Libraries DWG Plain 3K 620
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Libraries DWG Plain 3K 720
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Libraries DWG Plain 3K 860
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Libraries DWG Plain 3K 920
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Libraries MAX Plain 3K 560/620
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Libraries MAX Plain 3K 660/720
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Libraries MAX Plain 3K 860/920
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PRODUCT CARD PLAIN 3K
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Declaration of performance for Plain 3K radiator (520)
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Declaration of performance for Plain 3K radiator 560(620), 660(720)
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Declaration of performance for Plain 3K radiator 860(920)
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User manual Cast-iron radiator
UK Sales Office & Drop Ship Distribution Centre
Telephone: +44 (0) 1942 272 172

