uPVC Pipes (SCH 40 & SCH 80)

Dimensions for uPVC Pipe

Dimensions of ASTM Pressure uPVC Pipes at 23°C as per ASTM D1785
Size	Outside Diameter	Schedule 40			Schedule 80
Size	Outside Diameter	Wall Thickness	Working Pressure	Burst Pressure	Wall Thickness	Working Pressure	Burst Pressure
Inch	mm	mm	MPa	MPa	mm	MPa	MPa
½	21.34 ± 0.10	2.77 + 0.51	4.14	13.17	3.73 + 0.51	5.86	18.76
¾	26.67 ± 0.10	2.87 + 0.51	3.31	10.62	3.91 + 0.51	4.76	15.17
1	33.40 ± 0.13	3.38 + 0.51	3.10	9.93	4.55 + 0.53	4.34	13.93
1¼	42.16 ± 0.13	3.56 + 0.51	2.55	8.14	4.85 + 0.58	3.59	11.45
1½	48.26 ± 0.15	3.68 + 0.51	2.28	7.31	5.08 + 0.61	3.24	10.41
2	60.32 ± 0.15	3.91 + 0.51	1.93	6.14	5.54 + 0.66	2.76	8.89

Recommended Distances Between Support uPVC Schedule 80°C (mtrs.)
Size	23°C	30°C	40°C	50°C	60°C
½"	1.40	1.40	1.20	0.75	0.75
¾"	1.50	1.40	1.20	0.75	0.75
1"	1.70	1.50	1.40	0.90	0.75
1¼"	1.70	1.70	1.50	0.90	0.90
1½"	1.80	1.70	1.50	1.00	0.90
2"	1.80	1.70	1.50	1.00	2.15

uPVC Temperature Derating Factors
Cont. Service Temp (°C)	23	30	35	40	45	50	55	60
% Of Working Pressure	100	90	75	62	50	40	30	22

uPVC Mechanical Properties
Specific Gravity	1.41-1.46 g/cm³
Ultimate Tensile Strength	50 MPa
Comprehensive Strength	63 MPa
Shear Strength	39 MPa
Hardness (Durometer D)	80 ± 3 (ASTM D2240s)
Elongation at Break	50-80%

uPVC Thermal Properties
Max. Continuous Service Temp.	50°C
Coeff. of Thermal Expansion	5.4 x 10^-5 (mm/°C)
Vicat. Softening Temperature	Min 79°C
Flame Resistance	Self extinguishing uPVC dose not support combustion when the source of ignition is removed

uPVC Electrical Properties
Dielectric Constant	3.7 @ 60 Hz, 30°F
Power Factor	1013 - 1014 Ohm
Surface Resistivity	2000 Volts/mm
Dielectric Strength V/mil	1413 @ 60 Hz

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