ARPA 18 Horizontal represents the aesthetic evolution of the furnishing radiator, thanks to its longitudinal development. Performance is guaranteed even at low temperatures. There are 15 proposed widths, from 4 to 60 elements in even number and thermal powers from 129 to 3336 Watt.
Construction features
manifolds with a 30 mm diameter circular section
tubes made of sheet steel with an 18 mm diameter
manifold threading 1/2” Gas right
maximum working pressure 10 bar
maximum working temperature 95°C
Arpa 18, Horizontal, 20 elements, Hight 2020 mm, Lenght 541 mm, Pearl Grey
Arpa 18, Horizontal, 20 elements, Hight 2020 mm, Lenght 541 mm, Pearl Grey, (detail)
Arpa18, Horizontal, 20 elements, Hight 364 mm, Lenght 2020 mm, Quartz 1
Colors and Finishes
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Attention: the colors displayed are indicative and could not be as real radiators.
Related Accessories
| Model | Deph (mm) | Lenght (mm) | Conn. C. (mm) | Weigth (kg) | Capacity (lt) |
|---|---|---|---|---|---|
| 520 | 46,0 | 520 | 470 | 0,30 | 0,13 |
| 550 | 46,0 | 550 | 500 | 0,32 | 0,13 |
| 650 | 46,0 | 650 | 600 | 0,36 | 0,15 |
| 670 | 46,0 | 670 | 620 | 0,37 | 0,16 |
| 700 | 46,0 | 700 | 650 | 0,39 | 0,16 |
| 750 | 46,0 | 750 | 700 | 0,41 | 0,17 |
| 850 | 46,0 | 850 | 800 | 0,45 | 0,19 |
| 870 | 46,0 | 870 | 820 | 0,46 | 0,20 |
| 920 | 46,0 | 920 | 870 | 0,49 | 0,20 |
| 1220 | 46,0 | 1220 | 1170 | 0,62 | 0,26 |
| 1520 | 46,0 | 1520 | 1470 | 0,76 | 0,32 |
| 1820 | 46,0 | 1820 | 1770 | 0,90 | 0,38 |
| 2020 | 46,0 | 2020 | 1970 | 0,99 | 0,42 |
| 2220 | 46,0 | 2220 | 2170 | 1,08 | 0,46 |
| 2520 | 46,0 | 2520 | 2470 | 1,22 | 0,52 |
Thanks to the high performance of Irsap ARPA 18 Horizontal radiators, the ideal Δt for low temperature projects is Δt at 30°C.
For Δt different from 50°C use the formula: Q=Qn (Δt / 50)n
Standard equipment
• wall fixing systems with screws and anchors • 1/2” blind plug • piper cover kit • 1/2” air vent
| Number elements | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 |
| Btu/h a Δt=50°C | 849,7 | 1.081,3 | 1.312,9 | 1.544,4 | 1.776,0 | 2.007,6 | 2.239,1 | 2.470,7 | 2.710,4 | 2.942,2 | 3.161,7 | 3.381,6 | 3.589,8 | 3.790,6 | 3.983,8 | 4.169,5 | 4.348,4 | 4.519,8 | 4.684,7 | 4.900,9 | 5.117,1 | 5.333,3 | 5.549,4 | 5.765,6 | 5.981,8 | 6.198,0 | 6.414,2 | 6.630,4 | 6.846,6 |
| Thermal Power linear mt. Watt a Δt=50°C | 248,9 | 316,7 | 384,6 | 452,4 | 520,2 | 588,0 | 655,9 | 723,7 | 793,9 | 861,8 | 926,1 | 990,5 | 1.051,5 | 1.110,3 | 1.166,9 | 1.221,3 | 1.273,7 | 1.323,9 | 1.372,2 | 1.435,5 | 1.498,8 | 1.562,2 | 1.625,5 | 1.688,8 | 1.752,1 | 1.815,5 | 1.878,8 | 1.942,1 | 2.005,4 |
| Thermal Power linear mt. Watt a Δt=40°C | 187,3 | 238,6 | 289,9 | 341,3 | 392,8 | 445,1 | 497,6 | 550,2 | 606,0 | 660,5 | 712,5 | 765,2 | 811,1 | 855,2 | 897,5 | 935,2 | 971,0 | 1.004,8 | 1.036,9 | 1.096,0 | 1.144,7 | 1.193,5 | 1.244,4 | 1.295,5 | 1.341,4 | 1.400,4 | 1.450,4 | 1.500,4 | 1.550,6 |
| Thermal Power linear mt. Watt a Δt=30°C | 129,9 | 165,5 | 201,3 | 237,3 | 273,4 | 310,8 | 348,5 | 386,5 | 427,9 | 468,7 | 508,2 | 548,6 | 580,4 | 610,8 | 639,8 | 662,9 | 684,4 | 704,2 | 722,6 | 773,9 | 808,7 | 843,6 | 881,8 | 920,5 | 950,6 | 1.002,1 | 1.038,9 | 1.075,8 | 1.112,9 |
| Thermal Power linear mt. Watt a Δt=20°C | 77,5 | 98,9 | 120,5 | 142,2 | 164,1 | 187,3 | 211,0 | 234,9 | 261,9 | 289,0 | 315,6 | 343,3 | 362,2 | 380,1 | 397,0 | 408,1 | 418,0 | 426,7 | 434,3 | 474,0 | 495,6 | 517,3 | 542,7 | 568,6 | 585,0 | 625,3 | 649,2 | 673,2 | 697,3 |
| Exponent | 1,274 | 1,270 | 1,267 | 1,263 | 1,259 | 1,248 | 1,238 | 1,228 | 1,210 | 1,192 | 1,175 | 1,157 | 1,163 | 1,170 | 1,177 | 1,196 | 1,216 | 1,236 | 1,256 | 1,209 | 1,208 | 1,206 | 1,197 | 1,188 | 1,197 | 1,163 | 1,160 | 1,156 | 1,153 |
| Height (mm) | N° Elements | 520 | 550 | 650 | 670 | 700 | 750 | 850 | 870 | 920 | 1220 | 1520 | 1820 | 2020 | 2220 | 2520 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 109 | 4 | Watt = W = | 129 | 137 | 162 | 167 | 174 | 187 | 212 | 217 | 229 | 304 | 378 | 453 | 503 | 553 | 627 |
| 163 | 6 | Watt = W = | 165 | 174 | 206 | 212 | 222 | 238 | 269 | 276 | 291 | 386 | 481 | 576 | 640 | 703 | 798 |
| 217 | 8 | Watt = W = | 200 | 212 | 250 | 258 | 269 | 288 | 327 | 335 | 354 | 469 | 585 | 700 | 777 | 854 | 969 |
| 271 | 10 | Watt = W = | 235 | 249 | 294 | 303 | 317 | 339 | 385 | 394 | 416 | 552 | 688 | 823 | 914 | 1004 | 1140 |
| 325 | 12 | Watt = W = | 271 | 286 | 338 | 349 | 364 | 390 | 442 | 453 | 479 | 635 | 791 | 947 | 1051 | 1155 | 1311 |
| 379 | 14 | Watt = W = | 306 | 323 | 382 | 394 | 412 | 441 | 500 | 512 | 541 | 717 | 894 | 1070 | 1188 | 1305 | 1482 |
| 433 | 16 | Watt = W = | 341 | 361 | 426 | 439 | 459 | 492 | 557 | 571 | 603 | 800 | 997 | 1194 | 1325 | 1456 | 1653 |
| 487 | 18 | Watt = W = | 376 | 398 | 470 | 485 | 507 | 543 | 615 | 630 | 666 | 883 | 1100 | 1317 | 1462 | 1607 | 1824 |
| 541 | 20 | Watt = W = | 413 | 437 | 516 | 532 | 556 | 595 | 675 | 691 | 730 | 969 | 1207 | 1445 | 1604 | 1762 | 2001 |
| 595 | 22 | Watt = W = | 448 | 474 | 560 | 577 | 603 | 646 | 733 | 750 | 793 | 1051 | 1310 | 1568 | 1741 | 1913 | 2172 |
| 649 | 24 | Watt = W = | 482 | 509 | 602 | 620 | 648 | 695 | 787 | 806 | 852 | 1130 | 1408 | 1686 | 1871 | 2056 | 2334 |
| 703 | 26 | Watt = W = | 515 | 545 | 644 | 664 | 693 | 743 | 842 | 862 | 911 | 1208 | 1506 | 1803 | 2001 | 2199 | 2496 |
| 757 | 28 | Watt = W = | 547 | 578 | 683 | 705 | 736 | 789 | 894 | 915 | 967 | 1283 | 1598 | 1914 | 2124 | 2334 | 2650 |
| 811 | 30 | Watt = W = | 577 | 611 | 722 | 744 | 777 | 833 | 944 | 966 | 1021 | 1355 | 1688 | 2021 | 2243 | 2465 | 2798 |
| 865 | 32 | Watt = W = | 607 | 642 | 758 | 782 | 817 | 875 | 992 | 1015 | 1074 | 1424 | 1774 | 2124 | 2357 | 2591 | 2941 |
| 919 | 34 | Watt = W = | 635 | 672 | 794 | 818 | 855 | 916 | 1038 | 1063 | 1124 | 1490 | 1856 | 2223 | 2467 | 2711 | 3078 |
| 973 | 36 | Watt = W = | 662 | 701 | 828 | 853 | 892 | 955 | 1083 | 1108 | 1172 | 1554 | 1936 | 2318 | 2573 | 2828 | 3210 |
| 1027 | 38 | Watt = W = | 688 | 728 | 861 | 887 | 927 | 993 | 1125 | 1152 | 1218 | 1615 | 2012 | 2409 | 2674 | 2939 | 3336 |
| 1081 | 40 | Watt = W = | 714 | 755 | 892 | 919 | 961 | 1029 | 1166 | 1194 | 1262 | 1674 | 2086 | 2497 | 2772 | 3046 | |
| 1135 | 42 | Watt = W = | 746 | 790 | 933 | 962 | 1005 | 1077 | 1220 | 1249 | 1321 | 1751 | 2182 | 2613 | 2900 | 3187 | |
| 1189 | 44 | Watt = W = | 779 | 824 | 974 | 1004 | 1049 | 1124 | 1274 | 1304 | 1379 | 1829 | 2278 | 2728 | 3028 | 3327 | |
| 1243 | 46 | Watt = W = | 812 | 859 | 1015 | 1047 | 1094 | 1172 | 1328 | 1359 | 1437 | 1906 | 2375 | 2843 | 3156 | ||
| 1297 | 48 | Watt = W = | 845 | 894 | 1057 | 1089 | 1138 | 1219 | 1382 | 1414 | 1495 | 1983 | 2471 | 2958 | 3284 | ||
| 1351 | 50 | Watt = W = | 878 | 929 | 1098 | 1132 | 1182 | 1267 | 1435 | 1469 | 1554 | 2060 | 2567 | 3074 | |||
| 1405 | 52 | Watt = W = | 911 | 964 | 1139 | 1174 | 1227 | 1314 | 1489 | 1524 | 1612 | 2138 | 2663 | 3189 | |||
| 1459 | 54 | Watt = W = | 944 | 999 | 1180 | 1216 | 1271 | 1362 | 1543 | 1579 | 1670 | 2215 | 2760 | ||||
| 1513 | 56 | Watt = W = | 977 | 1033 | 1221 | 1259 | 1315 | 1409 | 1597 | 1635 | 1728 | 2292 | 2856 | ||||
| 1567 | 58 | Watt = W = | 1010 | 1068 | 1262 | 1301 | 1359 | 1457 | 1651 | 1690 | 1787 | 2369 | 2952 | ||||
| 1621 | 60 | Watt = W = | 1043 | 1103 | 1304 | 1344 | 1404 | 1504 | 1705 | 1745 | 1845 | 2447 | 3048 |
Certifications
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