77 Ill. Adm. Code 890.APPENDIX A
A Plumbing Materials, Equipment, Use Restrictions and Applicable Standards
Section 890
Section 890.APPENDIX A Â Â Plumbing
Materials, Equipment, Use Restrictions and Applicable Standards
Section 890.TABLE QÂ Â 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