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Table 3-1: PT878GC Installation Requirements for Air, Nitrogen, Oxygen or Argon
Pipe Size ANSI (DIN)
Pipe Wall Inches (mm)
3/4 (20)
<0.07 (1.8)
1 (25)
<0.14 (3.6)
1 1/2 (40)
<0.15 (3.8)
2 (50)
<0.16 (4.1)
3 (75)
<0.2
<0.22 (5.6)
4 (100)
<0.2
<0.24 (6.1)
<0.34 (8.6)
<0.68 (17.3)
6 (150)
<0.2
<0.28 (7.2)
<0.44 (11.2)
<0.87 (22.1)
8 (200)
<0.33 (8.4)
<0.50 (12.7)
<0.88 (22.4)
10 (250)
<0.37 (9.4)
<0.50 (12.7)
<1.00 (25.4)
Installing the Dampening Material, Transducers and Fixtures
Transducer
Min. Pressure
MHz
psig (bar)
1
60 (5.1)
1
60 (5.1)
1
60 (5.1)
1
60 (5.1)
1
60 (5.1)
0.5
1
60 (5.1)
0.5
60 (5.1)
0.5
180 (13.4)
0.5
300 (21.7)
1
60 (5.1)
0.5
60 (5.1)
0.2
200 (13.6)
0.5
180 (13.4)
0.2
600 (40.8)
0.5
300 (21.7)
0.2
1000 (68)
0.5
60 (5.1)
0.2
200 (13.6)
0.5
180 (13.4)
0.2
600 (40.8)
0.5
300 (21.7)
0.2
1000 (68)
0.5
60 (5.1)
0.2
200 (13.6)
0.5
180 (13.4)
0.2
600 (40.8)
0.5
300 (21.7)
0.2
1000 (68)
Maximum Velocity, ft/s (m/s)
Single
Dual
Triple
Traverse
Traverse
Traverse
—
—
90 (27.4)
—
—
90 (27.4)
—
—
90 (27.4)
90 (27.4)
—
75 (22.9)
120 (36.6)
—
69 (21.0)
120 (36.6)
—
53 (16.2)
90 (27.4)
72 (22.0)
54 (16.5)
135 (41.5)
108 (32.9)
81 (24.7)
90 (27.4)
72 (22.0)
54 (16.5)
135 (41.5)
108 (32.9)
81 (24.7)
90 (27.4)
72 (22.0)
54 (16.5)
135 (41.5)
108 (32.9)
81 (24.7)
80 (24.4)
64 (19.5)
48 (14.6)
120 (36.6)
96 (29.3)
72 (21.9)
80 (24.4)
64 (19.5)
48 (14.6)
120 (36.6)
96 (29.3)
72 (21.9)
80 (24.4)
64 (19.5)
48 (14.6)
120 (36.6)
96 (29.3)
72 (21.9)
70 (21.3)
56 (17.1)
42 (12.8)
105 (32)
84 (25.6)
63 (19.2)
70 (21.3)
56 (17.1)
42 (12.8)
105 (32)
84 (25.6)
63 (19.2)
70 (21.3)
56 (17.1)
42 (12.8)
105 (32)
84 (25.6)
63 (19.2)
April 2009
Four
Five
Traverse
Traverse
—
90 (27.4)
—
90 (27.4)
—
57 (17.4)
—
45 (13.7)
46 (14.0)
—
35 (10.7)
—
—
—
—
—
—
—
3-5
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