STANDARD PIPES RTRP NP – thickness and weight - Design based on internal pressure

1 – Internal liner (thickness 0.8 – 2.5 mm)

In tables bellow thickness include 0.8mm of liner for NP6 and 1.5mm for NP10, NP16 and NP20
and minimum pipe Stiffness 1250 Pa
2 – Mechanical resistant layer in glass filament winding (based on internal pressure)
3 – Top coat (0.2 – 0.3mm) . In tables bellow thickness include 0.2mm of top coat

Lmax for ND<150 is 6000mm and for ND≥150 is 11700mm.

NP6 [bar] NP10 [bar] NP16 [bar] NP20 [bar]
ND t W ND t W ND t W ND t W
[mm] [mm] [kg/m] [mm] [mm] [kg/m] [mm] [mm] [kg/m] [mm] [mm] [kg/m]
25 4.0 0.7 25 4.0 0.7 25 4.0 0.7 25 4.0 0.7
40 4.0 1.0 40 4.0 1.0 40 4.0 1.0 40 4.0 1.0
50 4.0 1.3 50 4.0 1.3 50 4.0 1.3 50 4.0 1.3
65 4.0 1.6 65 4.0 1.6 65 4.0 1.6 65 4.0 1.6
80 4.0 2.0 80 4.0 2.0 80 4.0 2.0 80 4.0 2.0
100 4.0 2.5 100 4.0 2.5 100 4.0 2.5 100 4.0 2.5
125 4.0 3.0 125 4.0 3.0 125 4.0 3.0 125 4.0 3.0
150 4.0 3.6 150 4.0 3.6 150 4.0 3.6 150 4.1 3.7
200 4.0 4.8 200 4.0 4.8 200 4.3 5.1 200 4.9 5.9
250 4.0 6.0 250 4.0 6.0 250 4.9 7.4 250 5.7 8.6
300 4.0 7.2 300 4.1 7.4 300 5.5 10.0 300 6.5 11.8
350 4.0 8.4 350 4.5 9.4 350 6.2 13.0 350 7.3 15.4
400 4.2 10.0 400 4.9 11.7 400 6.8 16.4 400 8.1 19.5
450 4.6 12.3 450 5.3 14.2 450 7.5 20.2 450 8.9 24.1
500 5.0 14.9 500 5.7 17.0 500 8.1 24.3 500 9.7 29.2
550 5.4 17.7 550 6.1 20.0 550 8.7 28.8 550 10.5 34.8
600 5.8 20.7 600 6.5 23.3 600 9.4 33.8 600 11.3 40.8
700 6.6 27.5 700 7.3 30.5 700 10.7 44.7 700 12.9 54.3
750 7.0 31.3 750 7.7 34.4 750 11.3 50.8 750 13.7 61.8
800 7.4 35.3 800 8.1 38.6 800 11.9 57.3 800 14.5 69.8
900 8.2 44.0 900 8.9 47.8 900 13.2 71.3 900 16.1 87.1
1000 9.0 53.6 1000 9.7 57.8 1000 14.5 86.9 1000 17.7 106.4
1100 9.8 64.2 1100 10.5 68.8 1100 15.8 104.0
1200 10.6 75.7 1200 11.3 80.8 1200 17.1 122.6
1300 11.4 88.2 1300 12.1 93.7 1300 18.3 142.8
1400 12.2 101.7 1400 12.9 107.6 1400 19.6 164.5
1500 13.0 116.1 1500 13.7 122.4 1500 20.9 187.7
1600 13.8 131.5 1600 14.5 138.2
1700 14.6 147.8 1700 15.3 154.9
1800 15.4 165.0 1800 16.1 172.6
2000 17.0 202.4 2000 17.7 210.8
2250 19.0 254.5
2300 19.4 265.6
2500 21.0 312.5
3000 25.0 446.4
3400 28.2 570.6
4000 33.0 785.6
All values presented in tables above are only for information and they vary from the project to project.
Vetroresina do not produce their products on stock, products are designed for each specific project separately.

Engineering Guide page 1 of 10

Standard pipes and fittings
This document is the property of Vetroresina Enginia S.p.A. Its contents may not be divulged to third parties or copied without prior authorization.
STANDARD PIPES RTRP SN – thickness and weight - design based on pipe stiffness
1 – Internal liner (thickness 0.8 – 2.5 mm)
In tables bellow thickness include 0.8mm of liner
2 – Mechanical resistant layer in glass filament winding (based on stiffness class)
3 – Top coat (0.2 – 0.3mm)
In tables bellow thickness include 0.2mm of top coat

Lmax for ND<150 is 6000mm and for ND≥150 is 11700mm.

SN 1250 [Pa] SN 2500 [Pa] SN 5000 [Pa] SN 10000 [Pa]
ND t W ND t W ND t W ND t W
[mm] [mm] [kg/m] [mm] [mm] [kg/m] [mm] [mm] [kg/m] [mm] [mm] [kg/m]
25 4.0 0.7 25 4.0 0.7 25 4.0 0.7 25 4.0 0.7
40 4.0 1.0 40 4.0 1.0 40 4.0 1.0 40 4.0 1.0
50 4.0 1.3 50 4.0 1.3 50 4.0 1.3 50 4.0 1.3
65 4.0 1.6 65 4.0 1.6 65 4.0 1.6 65 4.0 1.6
80 4.0 2.0 80 4.0 2.0 80 4.0 2.0 80 4.0 2.0
100 4.0 2.5 100 4.0 2.5 100 4.0 2.5 100 4.0 2.5
125 4.0 3.0 125 4.0 3.0 125 4.0 3.0 125 4.0 3.0
150 4.0 3.6 150 4.0 3.6 150 4.0 3.6 150 4.0 3.6
200 4.0 4.8 200 4.0 4.8 200 4.0 4.8 200 4.2 5.1
250 4.0 6.0 250 4.0 6.0 250 4.2 6.3 250 5.0 7.5
300 4.0 7.2 300 4.0 7.2 300 4.8 8.7 300 5.8 10.5
350 4.0 8.4 350 4.5 9.5 350 5.4 11.4 350 6.6 13.9
400 4.2 10.0 400 5.0 12.0 400 6.1 14.6 400 7.4 17.8
450 4.6 12.3 450 5.5 14.9 450 6.7 18.1 450 8.2 22.2
500 5.0 14.9 500 6.0 18.0 500 7.3 22.0 500 9.0 27.0
550 5.4 17.7 550 6.5 21.5 550 8.0 26.3 550 9.8 32.4
600 5.8 20.7 600 7.0 25.3 600 8.6 31.0 600 10.6 38.2
700 6.6 27.5 700 8.1 33.7 700 9.9 41.4 700 12.2 51.3
750 7.0 31.3 750 8.6 38.3 750 10.5 47.2 750 13.0 58.6
800 7.4 35.3 800 9.1 43.3 800 11.2 53.4 800 13.8 66.3
900 8.2 44.0 900 10.1 54.1 900 12.4 66.9 900 15.4 83.2
1000 9.0 53.6 1000 11.1 66.1 1000 13.7 82.0 1000 17.0 102.1
1100 9.8 64.2 1100 12.1 79.3 1100 15.0 98.5 1100 18.6 122.8
1200 10.6 75.7 1200 13.1 93.8 1200 16.2 116.6 1200 20.2 145.5
1300 11.4 88.2 1300 14.1 109.4 1300 17.5 136.2 1300 21.8 170.1
1400 12.2 101.7 1400 15.1 126.2 1400 18.8 157.3 1400 23.4 196.6
1500 13.0 116.1 1500 16.1 144.3 1500 20.0 179.9 1500 25.0 225.0
1600 17.1 163.5 1600 21.3 204.0 1600 26.6 255.4
1700 18.1 183.9 1700 22.6 229.7 1700 28.2 287.7
1800 19.1 205.6 1800 23.8 256.9 1800 29.8 321.9
2000 21.1 252.4 2000 26.4 315.8 2000 33.0 396.0
2250 29.6 397.9 2250 37.0 499.5
2300 30.2 415.5 2300 37.8 521.6
2500 32.7 489.6 2500 41.0 614.9
3000 39.1 701.4 3000 49.0 881.9
3400 44.2 898.1 3400 55.4 1129.9
4000 51.8 1238.8 4000 65.0 1559.6
All values presented in tables above are only for information and they vary from the project to project.
Vetroresina do not produce their products on stock, products are designed for each specific project separately.

Engineering Guide page 2 of 10

Standard pipes and fittings
This document is the property of Vetroresina Enginia S.p.A. Its contents may not be divulged to third parties or copied without prior authorization.
STANDARD PIPES RPMP SN – thickness and weight - design based on pipe stiffness
1 – Internal liner (thickness 0.8 – 2.5 mm).
In tables bellow thickness include 0.8mm of liner
2 – Mechanical resistant layer in glass filament winding (based on stiffness class)
3 – Layer in glass filament winding with mortar (based on stiffness class)
4 – Top coat (0.2 – 0.3mm).
In tables bellow thickness include 0.2mm of top coat

Lmax for ND<150 is 6000mm and for ND≥150 is 11700mm.

SN 1250 [Pa] SN 2500 [Pa] SN 5000 [Pa] SN 10000 [Pa]
ND t W ND t W ND t W ND t W
[mm] [mm] [kg/m] [mm] [mm] [kg/m] [mm] [mm] [kg/m] [mm] [mm] [kg/m]
25 25 25 25
40 40 40 40
50 50 50 50
65 65 65 65
80 80 80 80
100 100 100 100
125 125 125 125
150 150 150 150
200 200 200 200
250 250 250 250
300 4.7 8.5 300 4.7 8.5 300 5.0 9.1 300 6.3 11.9
350 4.7 10.0 350 4.7 10.0 350 5.9 12.7 350 7.5 16.5
400 4.7 11.2 400 5.2 12.8 400 6.6 16.4 400 8.5 21.5
450 4.7 12.7 450 6.0 16.5 450 7.5 21.3 450 9.7 28.1
500 5.9 17.7 500 6.2 18.8 500 7.8 23.9 500 9.9 31.3
550 6.0 19.8 550 6.9 23.2 550 8.7 29.7 550 11.0 38.6
600 6.2 22.8 600 7.8 29.3 600 10.1 38.5 600 12.9 50.4
700 6.9 29.3 700 8.7 37.6 700 11.1 49.2 700 14.3 64.4
750 7.5 34.4 750 9.4 44.0 750 11.9 57.0 750 14.5 71.1
800 7.9 38.6 800 10.0 50.1 800 12.7 64.9 800 15.0 76.6
900 8.9 49.5 900 11.4 64.6 900 14.6 84.2 900 17.1 98.7
1000 10.0 61.7 1000 12.7 80.2 1000 16.3 104.8 1000 19.4 124.6
1100 11.1 76.3 1100 14.1 98.8 1100 18.2 129.2 1100 20.2 140.4
1200 12.1 91.0 1200 15.6 119.5 1200 18.3 139.9 1200 22.3 170.0
1300 13.3 108.4 1300 15.9 126.8 1300 20.1 167.2 1300 24.4 201.7
1400 14.4 127.5 1400 16.9 149.4 1400 21.8 195.7 1400 26.6 238.1
1500 15.6 148.2 1500 18.2 172.5 1500 22.2 209.0 1500 28.8 276.2
1600 1600 19.6 199.2 1600 23.8 241.2 1600 29.7 300.5
1700 1700 21.0 228.0 1700 25.5 274.5 1700 31.7 342.4
1800 1800 22.2 253.2 1800 27.2 311.7 1800 33.9 388.7
2000 2000 23.8 297.2 2000 30.8 391.7 2000 38.4 489.2
2250 2250 33.0 476.2 2250 42.9 628.6
2300 2300 33.9 500.8 2300 44.2 661.4
2500 2500 34.3 547.1 2500 48.0 777.7
3000 3000 44.5 856.4 3000 57.1 1111.2
3400 3400 49.9 1086.9 3400 63.8 1409.5
4000 4000 59.8 1545.2 4000 75.5 1960.3
All values presented in tables above are only for information and they vary from the project to project.
Vetroresina do not produce their products on stock, products are designed for each specific project separately.

Engineering Guide page 3 of 10

Standard pipes and fittings
This document is the property of Vetroresina Enginia S.p.A. Its contents may not be divulged to third parties or copied without prior authorization.
STANDARD PIPES RTRP EP– thickness and weight - design based on external pressure
1 – Internal liner (thickness 0.8 – 2.5 mm)
In tables bellow thickness include 0.8mm of liner for EP 0.5 and 1.5mm for EP1, EP2 and EP3
and minimum pipe Stiffness 1250 Pa
2 – Mechanical resistant layer in glass filament winding (based on internal pressure)
3 – Top coat (0.2 – 0.3mm)
In tables bellow thickness include 0.2mm of top coat

Lmax for ND<150 is 6000mm and for ND≥150 is 11700mm.

EP 0.5 [bar] EP 1 [bar] EP 2 [bar] EP 3 [bar]
ND t W ND t W ND t W ND t W
[mm] [mm] [kg/m] [mm] [mm] [kg/m] [mm] [mm] [kg/m] [mm] [mm] [kg/m]
25 4.0 0.7 25 4.0 0.7 25 4.0 0.7 25 4.0 0.7
40 4.0 1.0 40 4.0 1.0 40 4.0 1.0 40 4.0 1.0
50 4.0 1.3 50 4.0 1.3 50 4.0 1.3 50 4.0 1.3
65 4.0 1.6 65 4.0 1.6 65 4.0 1.6 65 4.0 1.6
80 4.0 2.0 80 4.0 2.0 80 4.0 2.0 80 4.0 2.0
100 4.0 2.5 100 4.0 2.5 100 4.0 2.5 100 4.2 2.6
125 4.0 3.0 125 4.0 3.0 125 4.4 3.4 125 4.8 3.7
150 4.0 3.6 150 4.3 3.9 150 4.9 4.5 150 5.4 5.0
200 4.0 4.8 200 5.1 6.2 200 6.0 7.3 200 6.6 8.1
250 4.4 6.6 250 6.0 9.1 250 7.1 10.8 250 7.9 12.0
300 5.1 9.2 300 6.8 12.4 300 8.2 14.9 300 9.1 16.6
350 5.8 12.1 350 7.7 16.3 350 9.3 19.6 350 10.4 22.0
400 6.4 15.5 400 8.6 20.7 400 10.3 25.1 400 11.6 28.2
450 7.1 19.2 450 9.4 25.5 450 11.4 31.1 450 12.8 35.1
500 7.8 23.4 500 10.3 31.0 500 12.5 37.8 500 14.1 42.7
550 8.5 28.0 550 11.1 36.9 550 13.6 45.2 550 15.3 51.1
600 9.2 33.0 600 12.0 43.3 600 14.7 53.2 600 16.5 60.2
700 10.5 44.2 700 13.7 57.8 700 16.8 71.2 700 19.0 80.7
750 11.2 50.4 750 14.6 65.7 750 17.9 81.2 750 20.2 92.1
800 11.9 57.0 800 15.4 74.2 800 19.0 91.8 800 21.5 104.2
900 13.2 71.5 900 17.1 92.8 900 21.1 115.0
1000 14.6 87.5 1000 18.8 113.4 1000 23.3 140.8
1100 16.0 105.3 1100 20.6 136.1 1100 25.5 169.2
1200 17.3 124.6 1200 22.3 160.8 1200 27.6 200.3
1300 18.7 145.6 1300 24.0 187.6
1400 20.1 168.2 1400 25.7 216.4
1500 21.4 192.4 1500 27.4 247.3
1600 22.8 218.3
1700 24.1 245.8
1800 25.5 274.9
2000 28.2 338.0
2250 31.6 426.1
2300 32.3 444.9
2500 35.0 524.3
3000 41.8 751.4
3400 47.3 962.4
4000 55.4 1327.7
All values presented in tables above are only for information and they vary from the project to project.
Vetroresina do not produce their products on stock, products are designed for each specific project separately.

Engineering Guide page 4 of 10

Standard pipes and fittings
This document is the property of Vetroresina Enginia S.p.A. Its contents may not be divulged to third parties or copied without prior authorization.
STANDARD FITTINGS NP– thickness - design based on internal pressure
Internal liner (thickness 0.8 – 2.5 mm), for liner thickness see relevent pipe tables above
Minimum fitting Stiffness 1250 Pa and top coat thickness 0.2mm.

Elbow radius R=ND x 1.5

Reducer length L=(ND-nd) x 2.5
Cap height h=ND/4
ND NP6 NP10 NP16 NP20 SN1250 SN2500 SN5000 SN10000 EP 0.5 EP 1 EP 2 EP 3
[mm] t [mm]
25 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0
40 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0
50 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0
65 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0
80 4.0 4.0 4.0 4.3 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.2
100 4.0 4.0 4.3 4.9 4.0 4.0 4.0 4.0 4.0 4.0 4.4 4.8
125 4.0 4.0 4.9 5.7 4.0 4.0 4.0 4.0 4.0 4.4 5.1 5.6
150 4.0 4.1 5.5 6.5 4.0 4.0 4.0 4.0 4.0 4.9 5.8 6.4
200 4.0 4.9 6.8 8.1 4.0 4.0 4.2 5.0 4.0 6.0 7.1 7.9
250 4.0 5.7 8.1 9.7 4.0 4.2 5.0 6.0 4.0 7.1 8.5 9.5
300 4.0 6.5 9.4 11.3 4.0 4.8 5.8 7.0 4.0 8.2 9.9 11.0
350 4.5 7.3 10.7 12.9 4.5 5.4 6.6 8.1 4.5 9.3 11.2 12.6
400 5.0 8.1 11.9 14.5 5.0 6.1 7.4 9.1 5.0 10.3 12.6 14.2
450 5.5 8.9 13.2 16.1 5.5 6.7 8.2 10.1 5.5 11.4 13.9 15.7
500 6.0 9.7 14.5 17.7 6.0 7.3 9.0 11.1 6.0 12.5 15.3 17.3
550 6.5 10.5 15.8 19.3 6.5 8.0 9.8 12.1 6.5 13.6 16.7 18.8
600 7.0 11.3 17.1 20.9 7.0 8.6 10.6 13.1 7.0 14.7 18.0 20.4
700 8.1 12.9 19.6 24.1 8.1 9.9 12.2 15.1 8.1 16.8 20.8 23.5
750 8.6 13.7 20.9 25.7 8.6 10.5 13.0 16.1 8.6 17.9 22.1 25.1
800 9.1 14.5 22.2 27.3 9.1 11.2 13.8 17.1 9.1 19.0 23.5 26.6
900 10.1 16.1 24.7 10.1 12.4 15.4 19.1 10.1 21.1 26.2
1000 11.1 17.7 27.3 11.1 13.7 17.0 21.1 11.1 23.3 28.9
1100 12.1 19.3 29.9 12.1 15.0 18.6 23.2 12.1 25.5 31.6
1200 13.1 20.9 32.4 13.1 16.2 20.2 25.2 13.1 27.6 34.4
1300 14.1 22.5 35.0 14.1 17.5 21.8 27.2 14.1 29.8
1400 15.1 24.1 37.5 15.1 18.8 23.4 29.2 15.1 31.9
1500 16.1 25.7 40.1 16.1 20.0 25.0 31.2 16.1 34.1
1600 17.1 27.3 21.3 26.6 33.2 17.1
1700 18.1 28.9 22.6 28.2 35.2 18.1
1800 19.1 30.5 23.8 29.8 37.3 19.1
2000 21.1 33.7 26.4 33.0 41.3 21.1
2250 23.7 37.0 46.3 23.7
2300 24.2 37.8 47.3 24.2
2500 26.2 41.0 51.4 26.2
3000 31.2 49.0 61.4 31.2
3400 35.2 55.4 69.5 35.2
4000 41.3 65.0 81.6 41.3
All values presented in tables above are only for information and they vary from the project to project.
Vetroresina do not produce their products on stock, products are designed for each specific project separately.

Engineering Guide page 5 of 10

Standard pipes and fittings
This document is the property of Vetroresina Enginia S.p.A. Its contents may not be divulged to third parties or copied without prior authorization.
FLANGES – thickness - design based on internal pressure

Flanges can be supplied with all different type of national standard drilling patterns (UNI, DIN, ANSI, BS, NS,…)
Backing ring for loose flange can be supplied in Stainless steel, Galvanised steel or GRP.

Low pressure pipes NP6 [bar] NP10 [bar] NP16 [bar] NP20 [bar]
ND t L t L t L t L t L
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm]
25 20 100 20 100 20 100 20 100 20 100
40 20 100 20 100 20 100 20 100 20 100
50 20 100 20 100 20 100 20 100 20 100
65 20 100 20 100 20 100 20 100 20 100
80 25 100 25 100 25 100 25 100 25 100
100 25 100 25 100 25 100 25 100 25 100
125 25 100 25 100 25 100 25 100 25 100
150 25 100 25 100 25 100 25 100 30 120
200 25 100 25 100 25 100 30 120 35 140
250 25 100 25 100 25 100 35 140 45 180
300 25 100 25 100 30 120 45 180 55 220
350 25 100 25 100 30 120 50 200 65 260
400 25 100 25 100 35 140 60 240 70 280
450 25 100 30 120 40 160 65 260 80 320
500 25 100 30 120 45 180 70 280 90 360
550 25 100 35 140 50 200 80 320 100 400
600 25 100 35 140 55 220 85 340 105 420
700 30 120 45 180 60 240 100 400 125 500
750 30 120 45 180 65 260 105 420 135 540
800 30 120 50 200 70 280 115 460 140 560
900 35 140 55 220 80 320 125 500
1000 40 160 60 240 90 360 140 560
1100 40 160 65 260 95 380 155 620
1200 45 180 70 280 105 420 170 680
1300 50 200 75 300 115 460 180 720
1400 50 200 80 320 120 480 190 760
1500 55 220 90 360 130 520 210 840
1600 60 240 95 380 140 560
1700 65 250 100 400 150 600
1800 70 260 105 420 155 620
2000 75 280 115 460 170 680
2250 80 320 130 520
2300 90 360 140 560
2500 95 380 150 600
3000 110 440 175 700
3400 120 480 195 780
4000 130 520 210 840
All values presented in tables above are only for information and they vary from the project to project.
Vetroresina do not produce their products on stock, products are designed for each specific project separately.

Engineering Guide page 6 of 10

Standard pipes and fittings
This document is the property of Vetroresina Enginia S.p.A. Its contents may not be divulged to third parties or copied without prior authorization.
 FLANGE ADAPTORS SLEEVE

Flange adaptor – bell or spigot with flange – standard fitting

used where a flanged connection between GRP and steel flange
must be done and compensation for angular misalignement
between steel and GRP flange is required. This fitting allow
steel flange deflection without transmitting dangerous bending
moments to GRP piping and compensate longitudinal
dimensional tolerance in pipes.

BELL TYPE SPIGOT TYPE SLEEVE

ND [mm] L [mm] L [mm] ND [mm] φint. [mm] t [mm] L [mm]
25 150 365 25
50 150 365 50 76 10 370
65 160 375 65 91 10 370
80 160 375 80 101 10 370
100 170 385 100 126 10 370
125 180 435 125 156 12 450
150 190 445 150 181 12 450
200 190 445 200 231 12 450
250 200 455 250 282 12 450
300 200 505 300 339 16 540
350 230 535 350 390 16 540
400 230 635 400 441 16 540
450 240 695 450 502 20 630
500 250 705 500 552 20 630
550 260 715 550 604 25 630
600 280 735 600 676 25 630
700 280 735 700 774 30 630
750 280 735 750
800 280 735 800
900 280 735 900
1000 300 755 1000
All values presented in tables above are only for information and they vary from the project to project.
Vetroresina do not produce their products on stock, products are designed for each specific project separately.

Engineering Guide page 7 of 10

Standard pipes and fittings
This document is the property of Vetroresina Enginia S.p.A. Its contents may not be divulged to third parties or copied without prior authorization.
BUTT & STRAP LAMINATIONS
– thickness and weight - design based on internal pressure

For laminations ≥ ND300 l = L/2

For laminations ≤ ND300 l = L

Low pressure pipes NP6 [bar] NP10 [bar] NP16 [bar] NP20 [bar]
ND t L t L t L t L t L
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm]
25 4.0 100 4.0 100 4.0 100 4.0 100 4.0 100
40 4.0 100 4.0 100 4.0 100 4.0 100 4.0 100
50 4.0 100 4.0 100 4.0 100 4.0 100 4.0 100
65 4.0 100 4.0 100 4.0 100 4.0 100 4.0 100
80 4.0 100 4.0 100 4.0 100 4.0 100 5.0 100
100 4.0 100 4.0 100 4.0 100 5.0 100 6.0 110
125 4.0 100 4.0 100 4.0 100 6.0 110 8.0 130
150 4.0 100 4.0 100 5.0 100 7.0 130 9.0 160
200 4.0 100 4.0 100 6.0 110 10.0 170 12.0 210
250 4.0 100 5.0 100 8.0 130 12.0 210 15.0 260
300 4.0 100 6.0 110 9.0 160 14.0 250 18.0 310
350 4.0 100 6.0 130 10.0 180 16.0 290 20.0 360
400 4.0 100 7.0 140 12.0 210 19.0 330 23.0 420
450 4.0 100 8.0 160 13.0 240 21.0 370 26.0 470
500 5.0 110 9.0 180 15.0 260 23.0 420 29.0 520
550 5.0 120 10.0 200 16.0 290 26.0 460 32.0 570
600 5.0 120 10.0 200 16.0 300 27.0 480 30.0 600
700 6.0 130 11.0 210 17.0 310 28.0 490 34.0 620
750 6.0 140 11.0 230 19.0 330 30.0 530 37.0 660
800 6.0 150 12.0 240 20.0 350 32.0 560 39.0 700
900 7.0 170 14.0 270 22.0 400 35.0 630
1000 8.0 190 15.0 300 25.0 440 39.0 700
1100 9.0 210 17.0 330 27.0 480 43.0 770
1200 9.0 230 18.0 360 30.0 530 47.0 840
1300 10.0 240 19.0 390 32.0 570 51.0 910
1400 11.0 260 21.0 420 34.0 620 55.0 980
1500 11.0 280 22.0 450 37.0 660 59.0 1050
1600 12.0 300 24.0 480 39.0 700
1700 13.0 320 25.0 510 42.0 750
1800 14.0 340 27.0 540 44.0 790
2000 15.0 370 30.0 600 49.0 880
2250 17.0 420 33.0 670
2300 17.0 430 34.0 690
2500 19.0 470 37.0 750
3000 22.0 560 44.0 890
3400 25.0 630 50.0 1010
4000 30.0 740 59.0 1190
All values presented in tables above are only for information and they vary from the project to project.
Vetroresina do not produce their products on stock, products are designed for each specific project separately.

Engineering Guide page 8 of 10

Standard pipes and fittings
This document is the property of Vetroresina Enginia S.p.A. Its contents may not be divulged to third parties or copied without prior authorization.
EQUAL & REDUCED TEE LAMINATIONS

For informative dimensions of tee see page for butt & strap lamination and use the following corrections :
L = Llam + ND
t = Llam
s = Llam / 2
For dimensions of reduced tee relevant are dimensions for lamination of nd branch.

MITRED ELBOWS
For the diameters smaller than 1200mm except ND110mm,
elbows are produced on the mould with smooth radius.
Larger diameters ND1100mm and diameters above ND1200
are obtained from the pipe sections.
For the diameters ≥ ND1400 are supplied two sections, so
additional site lamination is required.

ND [mm] Length of pipe required

to obtain mitred elbow of 90°

1100 2.7
1200 2.9
1300 3.2
1400 3.4
1500 3.7
1600 3.9
1700 4.1
1800 4.4
2000 4.9
2250 5.5
2300 5.6
2500 6.1
3000 7.3
3400 8.2
4000 9.7

Engineering Guide page 9 of 10

Standard pipes and fittings
This document is the property of Vetroresina Enginia S.p.A. Its contents may not be divulged to third parties or copied without prior authorization.
LAMINATED FULL STOP & GLUED HALF STOPPS – pipe anchor in axial direction

ND [mm] A [mm] B [mm] t [mm] A [mm] B [mm] t [mm]

25 40 50 7 40 50 7
50 40 50 7 50 50 7
80 40 70 7 60 70 7
100 80 100 10 80 100 10
125 80 100 11 80 100 11
150 80 100 11 80 100 11
200 100 120 11 100 120 11
250 100 120 13 100 120 13
300 100 140 13 100 140 13
350 100 140 13 100 140 13
400 100 160 15 100 160 15
450 150 160 15 150 160 15
500 150 180 15 150 180 15
600 150 200 15 150 200 15
700 150 250 15 150 250 15

Engineering Guide page 10 of 10

Standard pipes and fittings
This document is the property of Vetroresina Enginia S.p.A. Its contents may not be divulged to third parties or copied without prior authorization.