Arpa 23 Horizontal

Musical form that combines personality with functionality. Ideal, therefore, for small and large environments, even with low temperature systems. ARPA 23 Horizontal is available in 14 widths, from 4 to 40 elements and thermal powers from 94 to 3302 Watt.

The images on this page have the sole purpose of depicting the product. Finishes and models may not have a perfect match with the actual product.

Arpa 23, Horizontal, 26 elements, Hight 878 mm, Lenght 2020 mm, Brown - RAL 8017 Arpa 23, Horizontal, 26 elements, Hight 878 mm, Lenght 2020 mm, Brown - RAL 8017, (detail)

Calculate the power

How to choose the Arpa 23 Horizontal radiator for your home? How to know what is the right power to heat each room? Online thermal requirement allows you to identify the most suitable radiator for your living space

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Configure your ARPA_H

Configure your ARPA_H

Arpa 12 Horizontal
Arpa 12_2 Horizontal
Arpa 18 Horizontal
Arpa 18_2 Horizontal
Arpa 23 Horizontal
Arpa 23_2 Horizontal
Choose most used
Cancel selection
Connection top/bottom with angle valve
Connection left/right with angle valve
50mm connection with angle valve
Select valve finish

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Thermal power

Discover accessories

APPUFIORE APPUQUADRO APPUTONDO ASTEUTONDO20 ASTEUQUAD20
VALKROSQUCU VALKRODIRCU VALKRO50SQUCU VALKRO50DIRCU VALKROSALVCU VALKROSQMIST KITMONESC TESTELIQ3
VALKITCOPTU VALKITCOPT
ATTCHE430
AMENSPAVPA

Construction features

  • round section manifold, 30 mm diameter
  • 23 mm diameter steel round pipes
  • threading at the ends of the manifolds, right G 1/2”
  • maximum working pressure 8 bar
  • maximum working temperature 95°C
Arpa 23 Horizontal

Model Depth (mm) Length (mm) Conn. centre (mm) Weight (kg) Capacity (lt)
520 50,0 520 470 0,46 0,20
550 50,0 550 500 0,48 0,20
650 50,0 650 600 0,55 0,24
670 50,0 670 620 0,56 0,24
700 50,0 700 650 0,58 0,25
750 50,0 750 700 0,62 0,27
850 50,0 850 800 0,69 0,30
870 50,0 870 820 0,70 0,31
920 50,0 920 870 0,74 0,33
1220 50,0 1220 1170 0,95 0,42
1520 50,0 1520 1470 1,16 0,52
1820 50,0 1820 1770 1,37 0,62
2020 50,0 2020 1970 1,50 0,69
2520 50,0 2520 2470 1,85 0,85

Thanks to the high performance of Irsap ARPA 23 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
Thermal output per linear metre
Number of Elements 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40
Btu/h at Δt=50°C 617,3 946,7 1.272,7 1.594,7 1.910,8 2.221,1 2.525,7 2.823,7 3.115,3 3.400,0 3.678,6 3.950,3 4.215,6 4.474,0 4.726,3 4.972,1 5.211,5 5.444,3 5.671,3
Yield per linear meter Watt at Δt=50°C 180,8 277,3 372,8 467,1 559,7 650,6 739,8 827,1 912,5 995,9 1.077,5 1.157,1 1.234,8 1.310,5 1.384,4 1.456,4 1.526,5 1.594,7 1.661,2
Yield per linear meter Watt at Δt=40°C 137,4 210,9 283,7 355,7 426,6 497,1 566,5 634,9 700,2 764,0 826,2 885,5 943,0 999,1 1.063,0 1.119,2 1.173,9 1.227,4 1.279,5
Yield per linear meter Watt at Δt=30°C 96,4 148,2 199,5 250,3 300,6 351,4 401,6 451,5 497,6 542,8 586,7 627,2 666,2 704,2 756,1 797,1 836,7 875,9 913,8
Yield per linear meter Watt at Δt=20°C 58,5 90,1 121,4 152,6 183,5 215,5 247,3 279,3 307,5 335,3 362,1 385,7 408,2 430,1 467,8 494,0 519,2 544,4 568,6
Exponent change 1,231 1,227 1,224 1,221 1,217 1,206 1,196 1,185 1,187 1,188 1,190 1,199 1,208 1,216 1,184 1,180 1,177 1,173 1,170

H
= Height (mm)
E
= N° Elem.
H Height (mm) E N° Elem.   520 550 650 670 700 750 850 870 920 1220 1520 1820 2020 2520
130 4 Watt =   W =  94 99 118 121 127 136 154 157 166 221 275 329 365 456
198 6 Watt =   W =  144 153 180 186 194 208 236 241 255 338 421 505 560 699
266 8 Watt =   W =  194 205 242 250 261 280 317 324 343 455 567 678 753 939
334 10 Watt =   W =  243 257 304 313 327 350 397 406 430 570 710 850 944 1177
402 12 Watt =   W =  291 308 364 375 392 420 476 487 515 683 851 1019 1131 1410
470 14 Watt =   W =  338 358 423 436 455 488 553 566 599 794 989 1184 1314 1640
538 16 Watt =   W =  385 407 481 496 518 555 629 644 681 903 1124 1346 1494 1864
606 18 Watt =   W =  430 455 538 554 579 620 703 720 761 1009 1257 1505 1671 2084
674 20 Watt =   W =  475 502 593 611 639 684 776 794 840 1113 1387 1661 1843 2300
742 22 Watt =   W =  518 548 647 667 697 747 847 866 916 1215 1514 1813 2012 2510
810 24 Watt =   W =  560 593 700 722 754 808 916 937 991 1315 1638 1961 2177 2715
878 26 Watt =   W =  602 636 752 775 810 868 984 1007 1065 1412 1759 2106 2337 2916
946 28 Watt =   W =  642 679 803 827 864 926 1050 1074 1136 1506 1877 2247 2494 3112
1014 30 Watt =   W =  681 721 852 878 917 983 1114 1140 1206 1599 1992 2385 2647 3302
1082 32 Watt =   W =  720 761 900 928 969 1038 1177 1204 1274 1689 2104 2520 2796 -
1150 34 Watt =   W =  757 801 947 976 1019 1092 1238 1267 1340 1777 2214 2651 2942 -
1218 36 Watt =   W =  794 840 992 1023 1069 1145 1298 1328 1404 1862 2320 2778 3084 -
1286 38 Watt =   W =  829 877 1037 1068 1116 1196 1355 1387 1467 1946 2424 2902 3221 -
1354 40 Watt =   W =  864 914 1080 1113 1163 1246 1412 1445 1528 2027 2525 3023 - -

Type Description Document Downloads

Technical document

Catalogs

Catalog 2023 Catalog 2023

Catalogs

Color chart Color chart

Installation Manual

FOISTR0394M FOISTR0394M

Installation Manual

FOISTR0633M FOISTR0633M

Installation Manual

FOISTR0431M FOISTR0431M

Type Description Document Downloads

3D Model

ARPA23_ORIZZ ARPA23_ORIZZ

discover the other radiators

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