| Fluid Flow Table of Contents | Hydraulic and Pneumatic Knowledge
Fluid Power Equipment
Estimated Pressure Drop for Thermoplastic Lined Fittings and Valves |
Size
mm (in) |
Standard
90 deg. elbow |
Standard Tee |
Plug Valve |
Diaphram Valve |
Vertical Check Valve |
Horizontal Check Valve |
Through run |
Through run branch |
25 (1) |
0.55 (1.8) |
0.37 (1.2) |
1.4 (4.5) |
0.61 (2.0) |
2.1 (7) |
1.8 (6.0) |
4.9 (16) |
40 (1½) |
1.1 (3.5) |
0.70 (2.3) |
2.3 (7.5) |
1.3 (4.2) |
3.0 (10) |
1.8 (6.0) |
7.0 (23) |
50 (2) |
1.4 (4.5) |
0.91(3.0) |
3.0 (10) |
1.7 (5.5) |
4.9 (16) |
3.0 (10) |
14 (45) |
65 (2½) |
1.7 (5.5) |
1.2 (4.0) |
3.7 (12) |
N.A. |
6.7 (22) |
3.4 (11) |
15 (50) |
80 (3) |
2.1 (7.0) |
1.2 (4.1) |
4.6 (15) |
N.A. |
10 (33) |
3.7 (12) |
18 (58) |
100 (4) |
3.0 (10) |
1.8 (6.0) |
6.1 (20) |
N.A. |
21 (68) |
6.1 (20) |
20 (65) |
150 (6) |
4.6 (15) |
3.0 (10) |
9.8 (32) |
N.A. |
26 (85) |
9.4 (31) |
46 (150) |
200 (8) |
5.8 (19) |
4.3 (14) |
13 (42) |
N.A. |
46 (150) |
23 (77) |
61 (200) |
250 (10) |
7.6 (25) |
5.8 (19) |
16 (53) |
N.A. |
N.A. |
N.A. |
N.A. |
300 (12) |
9.1 (30) |
7.0 (23) |
20 (64) |
N.A. |
N.A. |
N.A. |
N.A. |
Notes:
Data is for water expressed as equal length of straight pipe in m (ft)
N.A. = Part is not available from source.
Source:
“Plastic Lined Piping Products Engineering Manual” |
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