|
|
Product Ratings and Capability
Harvel LXT® piping is produced to Schedule 80 dimensions in strict accordance with ASTM D1785, and exhibits a Type II pressure rating. Harvel LXT® fittings are produced to Schedule 80 dimensions per ASTM D2467. Joining of product produced to the dimensional requirements of these standards ensures that strong connections with good pressure bearing capability can be made up quickly and consistently using common, inexpensive tools. Utilizing these dimensions provides a higher pressure-bearing capacity compared to other “clean” systems on the market, and permit the use of standard socket dimensions.
|
Dimensions
|
Nominal Pipe Size (in)
|
Avg
O.D.
|
Avg
I.D.
|
Min
Wall
|
Nominal
Wt. Lbs/ft.
|
Max W.P.
PSI*
|
|
1/2
|
.840
|
.526
|
.147
|
.213
|
420
|
|
3/4
|
1.050
|
.722
|
.154
|
.289
|
340
|
|
1
|
1.315
|
.936
|
.179
|
.424
|
320
|
|
1 1/4
|
1.660
|
1.255
|
.191
|
.586
|
260
|
|
1 1/2
|
1.900
|
1.476
|
.200
|
.711
|
240
|
|
2
|
2.375
|
1.913
|
.218
|
.984
|
200
|
|
3
|
3.500
|
2.864
|
.300
|
2.010
|
190
|
|
4
|
4.500
|
3.786
|
.337
|
2.938
|
160
|
|
6
|
6.625
|
5.709
|
.432
|
5.610
|
140
|
*PSI water, non-shock @ 73°F with solvent-welded connections. System pressure rating dependent on component pressure ratings (i.e., flanges all sizes = 150 psi max @ 73°F)
|
As with all schedules of thermoplastic pipe, pressure rating is dependent on the pipe diameter as well as the operating temperature of the system. As temperatures rise, the pressure rating of the system decreases. The maximum temperature rating of Harvel LXT® piping is 140°F. Smaller-diameter piping can withstand higher pressure than large-diameter piping at elevated temperatures. Use appropriate temperature de-rating factors to determine maximum allowable pressure at elevated temperatures.
|
Temperature De-Rating Factors
|
Operating Temp. °F
|
De-Rating Factor
|
|
73
|
1.00
|
|
80
|
0.88
|
|
90
|
0.75
|
|
100
|
0.62
|
|
110
|
0.51
|
|
120
|
0.40
|
|
130
|
0.31
|
|
140
|
0.22
|
|
