MECHANICAL PP-RCT pipes.

The durable and low-maintenance plastic pipe system

Startseite » PP-RCT Pipes

75 % less linear expansion
Fewer attachment points
Higher flow rate
Up to 80 % lighter than steel
Easy, safe installation


  • 75 % less linear expansion compared to single-layer PP-R pipes
    This reduces the requirements for linear expansion allowances
  • Outstanding stability
    Fewer fixing points required, therefore faster installation and approx. 30 % fewer fixing points compared to standard plastics
    Linear expansion almost identical to that of metal pipes
  • Higher flow rate due to thinner walls
  • Up to 80% lower weight compared to steel or copper


Overview MECHANICAL PP-RCT pipe system

Outer Ø (mm)SDR 7,4SDR 11SDR 17,6Welding method
20Socket welding
25Socket welding
32Socket welding
40Socket welding
50Socket welding
75Socket welding
90Socket welding
110Socket welding
125Socket welding
160Butt welding
200Butt welding
250Butt welding
315Butt welding
355Butt welding
400Butt welding
450Butt welding
500Butt welding

Product overview MECHANICAL PP-RCT pipes, dimensions.

MECHANICAL GRAY PP-RCT pipe SDR 7.4/11/17.6

Material: PP-RCT, multi-layer tube, fibre-reinforced
Colour: Grey
Standards: DIN 8077/78, EN ISO 15874, ASTM 2389, NSF14
Certificate: ICC-ES PMG 1458
Available sizes: 20-500 mm
Tube length: 20-500 mm in 5.8 m length, special lengths on request

SDRArticle numberOuter Ø(mm)Wall thicknessInner Ø(mm)Water flow rate (l/m)Weight (kg/m)Packing unit (m)
7,4680322202,814,40,160,15145,0
7,4680323253,518,00,250,2487,0
11680324322,926,20,530,2658,0
11680325403,732,60,830,4129,0
11680326504,640,81,310,6429,0
11680327635,851,42,081,0117,4
11680328756,861,42,941,4111,6
11680329908,273,64,252,035,8
1168033011010,090,06,363,015,8
1168033112511,4102,28,203,915,8
1168033316014,6130,813,446,415,8
1168033420018,2163,621,0310,005,8
1168033525022,7204,632,8715,605,8
1168034631528,6257,852,2024,605,8
1168034735532,2290,666,3331,205,8
1168034840036,3327,484,1839,605,8
1168034945040,9368,2106,4750,105,8
17,66803511257,1110,89,642,555,8
17,66803531609,1141,815,794,175,8
17,668035420011,4177,224,666,505,8
17,668035525014,2221,638,5710,105,8
17,668036631517,9279,261,2216,005,8
17,668036735520,1314,877,8320,305,8
17,668036840022,7354,698,7525,705,8
17,668036945025,5399,0125,0332,505,8
17,668037050028,4443,2154,2740,205,8

Operating pressures

Long-term behaviour with a safety factor of 1.25

TemperatureOperating timeMax. Betriebsdruck SDR 11 (bar)Max. Operating pressure SDR 11 (psi)Max. Operating pressure SDR 17.6 (bar)Max. Operating pressure SDR 17.6 (psi)
0-10° C122,833113,7199
0-10° C522,132113,3193
0-10° C1021,931813,1190
0-10° C2521,531212,9187
0-10° C5021,230712,7184
15° C122,132113,2191
15° C521,431012,5181
15° C1021,030512,0174
15° C2520,229311,9173
15° C5019,528311,5167
20° C119,928911,9173
20° C519,328011,6168
20° C1019,027611,4165
20° C2518,627011,2162
20° C5018,426711,0160
30° C117,224910,3149
30° C516,624110,0145
30° C1016,42389,8142
30° C2516,12349,6139
30° C5015,82299,5138
40° C114,82158,9129
40° C514,32078,6125
40° C1014,12058,4122
40° C2513,82008,3120
40° C5013,61978,1117
50° C112,61837,6110
50° C512,21777,3106
50° C1012,01747,2104
50° C2511,71707,0102
50° C5011,51676,9100
60° C110,71556,493
60° C510,31496,290
60° C1010,11466,188
60° C259,91445,986
60° C509,71415,884
70° C19,01315,478
70° C58,61255,275
70° C108,51235,174
70° C258,31205,073
70° C508,11174,971
75° C18,31205,275
75° C58,01164,870
75° C107,71124,565
75° C257,31064,058
75° C506,8993,855
80° C17,51094,565
80° C57,21044,362
80° C107,01024,261
80° C256,91004,159
90° C15,6813,449
90° C55,3773,246
90° C105,2753,145
SDR = standard dimension ratio (ratio of diameter to wall thickness)

Questions about our MECHANICAL PP-RCT pipes?

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Phone +49 8342 7006 0 or simply use our contact form.

MECHANICAL is a brand of

Polymelt GmbH
Kirnachstraße 17
87640 Ebenhofen
Germany

M. +49 8342 7006 0
F. +49 8342 7006 66
E. mail@polymelt.com