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Type “A”, “LT” Wafer Butterfly Valve Technical Performance

Technical Data
Nominal DiameterDN mm (inch)
50(2”)~1000(40”)
50(2”)~800(32”)
Nominal PressurePN Mpa
1.0
1.6
Testing Pressure Mpa
Shell
1.5
2.4
Sealing
1.1
1.76
Working Temperature (C)
-15 ~ +150
Suitable Mediums
 Flesh Water, Sewage, Sea Water, Air, Vapour, Food, Medicine, Oils, Acids, Alkalis, Salts, etc.
 
Features:
1. Small in size and light in weight. Easy installation and maintenance. It can be mounted wherever needed.
2. Simple and compact construction, quick 90-degree on-off operation.
3. Minimized operating torque, energy saving.
4. Flow curve in straight line. Excellent regulation performance.
5. Long working life. Standing the test of tens of thousands opening/closing operations.
6. Bubbles-tight sealing with no leakage under the pressure test.
7. Wide selection of materials, applicable for various mediums.
 
Overall Dimension & Weight of Manual Actuator
Size mm (inch)
A
B
R
Weight Kg
50(2”)~100 (4”)
266.7
32
52
0.8
125(5”)~150 (6”)
313
32
52
1.0
200(8”)~250 (10”)
359
45
75.2
2.0
300 (12”)
490
45
75.2
3.0
Overall Dimension & Weight of Worm gearing Actuator
Model
Size mm (inch)
A
B
C
E
F
G
Weight
Kg
3DB-15
50 (2”)~150 (6”)
52
45
74
52
152.5
75
150
4.8
3DB-50
200 (8”)~250 (10”)
75
62.75
101
75
250
86
300
11.7
3DB-120
300 (12”)~350 (14”)
81
80
118
81
227
83
300
14
Material of Main Parts
Body
Disc
Shaft
Bushing
Seat
Name
Code
Name
Code
Name
Name
Name
Code
Working Temp.C
Cast Iron
Z
Plated Ductile Iron
Q
Stainless SteelCarbon Steel

Lubrized Bronze

PTFE
NR
X1
-20~+85
Hypalon
X2
-18~+135
Ductile Iron
Q
Aluminum Bronze
T
EPDM
X3
-45~+135
Neoprene
X4
-7~+93
Aluminum
T
Stainless Steel
S
NBR
X5
-12~+82
Wear-resistantRubber
X6
-10~+50
Stainless Steel CF8M
P
Carbon Steel
C
VITON
X7
-23~+150
Stainless Steel
R
Nylon Loated
N
Heat-resistant Rubber
X9
-2~+150
Carbon Steel
C
PIFE
F
PTFE
F4
+10~+150
Overall & Connection Dimensions & Weight of Type "A" Butterfly Valve
Size
A
B
C
D
L
H
D1
N-
K
E
n1-1
2
G
n2-M
Weight (Kg)
mm
inch
50
2”
161
80
42
52.9
32
84.84
120
4-23
77
57.15
4-6.7
12.6
118
---
2.5
65
2.5”
175
89
44.7
64.5
32
96.2
136.2
4-26.5
77
57.15
4-6.7
12.6
137
---
3.2
80
3”
181
95
45.2
78.8
32
61.23
160
8-18
77
69.85
4-6.7
12.6
143
---
3.6
100
4”
200
114
52.1
104
32
70.80
185
4-24.5
92
69.85
4-10.3
15.77
156
---
4.9
125
5”
213
127
54.4
123.3
32
82.28
215
4-23
92
69.85
4-10.3
18.92
190
---
7
150
6”
226
139
55.8
155.6
32
91.08
238
4-25
92
69.85
4-10.3
18.92
212
---
7.8
200
8”
260
175
60.6
202.5
45
112.89
295
4-25
115
88.9
4-14.3
22.10
268
---
13.2
76.35
4-23
250
10”
292
203
65.6
250.5
45
92.40
357
4-29
115
88.9
4-14.3
28.45
325
---
19.2
300
12”
337
242
76.9
301.6
45
105.3
407
4-29
140
107.95
4-14.3
31.60
403
---
32.5
350
14”
368
267
76.5
333.3
45
91.11
467
4-30
140
107.95
4-14.3
31.60
436
---
41.3
400
16”
400
309
86.5
389.6
51.2
100.47
515
4-26
197
158.75
4-20.6
33.15
488
---
61
72
102.4
525
4-30
450
18”
422
328
105.6
440.51
51.2
88.39
565
4-26
197
158.75
4-20.6
38
539
---
79
72
91.51
585
4-30
500
20”
480
361
131.8
491.6
64.2
96.99
620
4-26
197
158.75
4-20.6
41.15
593
---
128
82
101.68
650
4-33
600
24”
562
459
152
491.6
70.2
113.42
725
20-30
276
215.9
4-20.6
50.65
816
---
188
82
120.46
770
20-36
700
28”
624
520
163
695
66
109.65
840
24-30
300
254
8-18
55
895
4-M33
484
82
20-36
63.35
800
32”
672
591
188
794.7
66
124
950
24-33
300
254
8-18
55
1015
---
368
82
24-39
63.35
900
36”
720
656
203
864.7
118
117.57
1050
24-33
300
254
8-18
75
1115
4-M33
713
1000
40”
800
721
216
965
142
129.89
1160
24-36
300
254
8-18
85
1230
4-M33
864
 
Note:
DN50 (2”)~800(32”) Type “A” butterfly valves are suitable for the pressure of PN1.0Mpa and PN1.6Mpa grades separately. Two dimensions in one column show the connection dimensions of PN1.0/PN1.6Mpa pressure grades. The upper flanges of the valves are suitable all types of valves fitted with electric, worm gearing, manual, pneumatic and actuators.The dimensions D1 and n-ø of DN500 (20”) listed in above table show the installation dimensions of butterfly valve. Of which the dimensions D1 and n-ø of DN50(2”)~350(14”) contain the standard of GB9112-88, DIN2501 (Germany), BS4504 (UK), ISO2084, ISO2531, BS10-E (UK), ANSI125 (USA) for flange connection and DN400 (16”)~500(20”) contain the standard of GB9112-88, DIN2501, ISO2084 and BS4504.
Overall & Connection Dimensions & Weight of Type “LT” Butterfly Valve
Size
A
B
C
D
L
H
D1
n-M
K
E
n1-1
2
G
Weight (Kg)
mm
inch
50
2”
161
80
42
52.9
32
88.38
125
4-M16
77
57.15
4-6.7
12.6
118
3.8
65
2.5”
175
89
44.7
64.5
32
102.54
145
4-M16
77
57.15
4-6.7
12.6
137
4.2
80
3”
181
95
45.2
78.8
32
61.23
160
8-M16
77
57.15
4-6.7
12.6
178
4.7
100
4”
200
114
52.1
104
32
68.88
180
8-M16
92
69.85
4-10.3
15.77
206
9.0
125
5”
213
127
54.4
123.3
32
80.36
210
8-M16
92
69.85
4-10.3
18.92
238
10.9
150
6”
226
139
55.8
155.6
32
91.84
240
8-M20
92
69.85
4-10.3
18.92
266
14.2
200
8”
260
175
60.6
202.5
45
112.89
295
8-M20
115
88.9
4-14.3
22.10
329
18.2
76.35
12-M20
250
10”
292
203
65.6
250.5
45
90.59
350
12-M20
115
88.9
4-14.3
28.45
393
26.8
91.88
 355 12-M24
300
12”
337
242
76.9
301.6
45
103.52
400
12-M20
140
107.95
4-14.3
31.60
462
40
106.12
 410 12-M24
350
14”
368
267
76.5
333.3
45
89.74
460
16-M20
140
107.95
4-14.3
31.60
515
56
91.69
 470 16-M24
400
16”
400
309
86.5
389.6
51.2
100.48
515
16-M24
197
158.75
4-20.6
33.15
579
96
72
102.42
525
16-M27
450
18”
422
328
105.6
440.51
51.2
88.38
565
20-M24
197
158.75
4-20.6
38
627
122
72
91.59
585
20-M27
500
20”
480
361
131.8
491.6
64.2
96.99
620
20-M24
197
158.75
4-20.6
41.15
696
202
82
101.68
650
20-M30
600
24”
562
459
152
592.5
70.2
113.42
725
20-M27
276
215.9
4-22.2
50.65
821
270
82
120.46
770
20-M33
Note:
DN50 (2”)~600(24”) Type “LT" Butterfly valves are suitable for the pressure grades of PN1.0Mpa and PN1.6Mpa separately. Two dimensions in one column show the connection dimensions of PN1.0/PN1.6Mpa pressure grades. The upper flanges of the butterfly valves accommodate all types of operators: manual, worm gearing, electric pneumatic and actuators.Difference between Type “A” and “LT”: Both Type “A” and “LT” have the same construction and performances and made of the same materials. The main difference between them is that type “A” valves are mounted between pipe flanges (wafer-type ) by bolts (or extended hexagon-head bolts) , while type “LT” can be either mounted between two pipes by ordinary hexagon head bolts or mounted at the pipe end (lugged-type) . As the valve is used at the end of pipeline, it is necessary to indicate in order.
Wafer Butterfly Check Valve
Application
Check valve is used for preventing the back going of medium in pipelines and equipments, and the pressure of medium will bring the result of opening and closing automatically. When the medium is back going, valve disc will automatically close to avoid accidents.
 
Feature
1. This valve is tightly sealed, without leakage under the water pressure test.
2. Safe and reliable in operation, high interference-resistance.
Overall & Struture Dimensions & Weight
Size
D
D1
D2
L
R
T
Weight (Kg)
mm
inch
50
2”
107
65
43.3
43
28.8
19
1.5
65
2.5”
127
80
60.2
46
36.1
20

2.4

80
3”
142
94
66.4
64
43.4
28
3.6
100
4”
162
117
90.8
64
52.8
27
5.7
125
5”
192
145
116.9
70
65.7
30
7.3
150
6”
218
170
144.6
76
78.6
31
9.0
200
8”
273
224
198.2
89
104.4
33
17
250
10”
328
265
233.7
114
127
50
26
300
12”
378
310
283.9
114
148.3
43
42
350
14”
438
360
332.9
127
172.4
45
55
400
16”
489
410
381.0
140
197.4
52
75
450
18”
539
450
419.9
152
217.8
58
101
555
107
500
20”
594
505
467.8
152
241
58
111
600
24”
690
624
572.6
178
295.4
73
172
700
28”
800
720
680
229
354
98
219
Material of Main Parts
Body
Disc
Stem
Rubber Gasket
Spring
Name
Code
Name
Code
Name
Name
Code
Working Temp. C
Name
Cast iron
Z
Plated Ductile Iron
Q
EPDM
X3
-46~+121-50~+150 (Intemittence)
Stainless Steel
Ductile Iron
Q
Aluminum Bronze
T
Neoprene
X4
-29~+99-35~+113 (Intemittence)
  
Carbon Steel
C
Stainless Steel
S
NBR
X5
-23~+82-23~+93 (Intemittence)
  
Stainless Steel
P
    
Viton
X7
-23~+150
  
 

3F-1, CHUNG NAN BUILDING 259, SEC. 1 FU SHIN S. ROAD
P. O. BOX 1950 TAIPEI, TAIWAN, REPUBLIC OF CHINA
TEL: 886-2-2706-2223-5, 886-2-2700-0852-3, 886-2-2700-1771-5
FAX: 886-2-2709-7770, 886-2-2709-7861
E-mail:hantkurt@ms15.hinet.net

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