CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 890 ILLINOIS PLUMBING CODE
SECTION 890.APPENDIX A PLUMBING MATERIALS, EQUIPMENT, USE RESTRICTIONS AND APPLICABLE STANDARDS
Section 890.APPENDIX A Plumbing Materials, Equipment, Use Restrictions and Applicable Standards
Section 890.TABLE Q Allowance in Equivalent Length of Pipe for Friction Loss in Valves and Fittings
The following applies to all types of material approved for potable water distribution:
|
Equivalent Feet of Pipe for Various Pipe Sizes |
||||||||
|
Valve or Fitting |
½" |
¾" |
1" |
1¼" |
1½" |
2" |
2½" |
3" |
|
45º ell (wrought) |
0.5 |
0.5 |
1.0 |
1.0 |
2.0 |
2.0 |
3.0 |
4.0 |
|
90º ell (wrought) |
0.5 |
1.0 |
1.0 |
2.0 |
2.0 |
2.0 |
2.0 |
3.0 |
|
Tee, Run (wrought) |
0.5 |
0.5 |
0.5 |
0.5 |
1.0 |
1.0 |
2.0 |
− |
|
Tee, Branch (wrought) |
1.0 |
2.0 |
3.0 |
4.0 |
5.0 |
7.0 |
9.0 |
− |
|
45º ell (cast) |
0.5 |
1.0 |
2.0 |
2.0 |
3.0 |
5.0 |
8.0 |
11.0 |
|
90º ell (cast) |
1.0 |
2.0 |
4.0 |
5.0 |
8.0 |
11.0 |
14.0 |
18.0 |
|
Tee, Run (cast) |
0.5 |
0.5 |
0.5 |
1.5 |
1.0 |
2.0 |
2.0 |
2.0 |
|
Tee, Branch (cast) |
2.0 |
3.0 |
5.0 |
7.0 |
9.0 |
12.0 |
16.0 |
20.0 |
|
Compression Stop |
13.0 |
21.0 |
30.0 |
− |
− |
− |
− |
− |
|
Globe Valve |
− |
− |
− |
53.0 |
66.0 |
90.0 |
− |
− |
|
Gate Valve |
− |
− |
1.0 |
1.0 |
2.0 |
2.0 |
2.0 |
2.0 |