Damper Style Butterfly Valve - Lee Supply

D2
S
O
Lever Operated Damper
Butterfly Valves
X
X
A
8b
8a
8c
8
D
P.C.D. C
H1
H 2
H3
H
1a 1b
d 1
10
9
6
5
7
4
3
2
Shut
X-X
90º
Open
n- h
1
L
Dimensions (Lever: Sizes 1-1/2" – 8")
NOMINAL
SIZE
INCHES
1 1/
2 0
40
ANSI CLASS 150
m m d1 C n h D D2 L H H1 H2 H3 A
4 1.57
3.88
4 0.62
5.91
3.27
1.26
6.54
2.95
3.78
2.76
8.62
2 50
1.97
4.75
4 0.75
6.50
3.50
1.38
6.77
3.27
4.02
2.76
8.62
2 1/
2 65
2.64
5.50
4 0.75
7.28
4.13
1.46
7.17
3.66
4.41
2.76
8.62
3 80
3.07
6.00
4 0.75
7.87
4.72
1.46
7.32
3.94
4.57
2.76
8.62
4 100
3.94
7.50
8 0.75
9.02
5.94
1.85
8.03
4.53
5.28
2.76
9.80
5 125
4.92
8.50
8 0.88
10.00
7.09
2.24
10.43
5.00
6.42
4.02
12.72
6 150
5.83
9.50
8 0.88
11.22
8.50
2.44
10.94
5.63
6.93
4.02
12.72
8 200
7.64
11.75
8 0.88
13.39
10.40
2.99
12.28
6.69
8.27
4.02
12.72
Pressure vs.Temp. Weight (POUNDS) Troubleshooting
INCHES
B
ODY
DISC
NOMINAL
SIZE
mm
PVDF
PVDF
-40˚ F
250˚ F
PSI
1 1/
2 40
100
2 50
100
2 1/
2 65
100
3 80
100
4 100
75
5 125
75
6 150
75
8 200
60
NOMINAL
SIZE
INCHES
mm
LEVE R
OPERATED
1 1/
2 40
2.20
2 50
3.30
2 1/
2 65
3.75
3 80
3.75
4 100
5.29
5 125
9.92
6 150
12.13
8 200
41.89
Cv Values
NOMINAL
SIZE
INCHES
What if weepage through disc increases
1. Body or disc abraded. Replace defective part.
2. Travel stop is not set correctly. (May require
travel stop adjustment).
What if fluid leaks between body and mating flange
1. Bolts not tightened properly. Retighten
diagonally and uniformly.
What if fluid leaks from gland
1. Gland is loose. Retighten packing holder.
2. V-packing is abraded. Replace V-packing.
What if valve cannot be operated
1. Lever, gear box or stem damaged. Replace
defective part.
ASAHI/AMERICA
Rev. C 03-05
Cv
(at various opening degrees )
mm
30
˚ 60
˚ 90
˚
1 1/
2 40
2.
9 43.
3 71
2 50
3.
9 56.
1 92
2 1/
2 65
5.
9 85.
4 140
3 80
9.
3 134.
2 220
4 100
15.
1 231
380
5 125
30.
9 445
730
6 150
46.
6 671
1100
8 200
106
1425
2500