Ball valve is a simple structure, convenient operation, reliable performance of the valve, mainly by the body, ball and transmission mechanism. The ball rotates around the central axis of the valve body to realize the opening and closing or adjust the medium flow in the pipeline. Ball valve has the advantages of small size, light weight, rapid opening and closing, small flow resistance, widely used in petrochemical, electric power, metallurgy, water treatment and other fields.
Flange type dump ball valves(Fully lined) ※ basic model: DOF1F3*、DOF1F46、DQ41F3、DQ41F46Type ※ nominal pressure: PN1.0(MPa) ※ nominal diameter: DN5 ~ 250(mm) Length of ※ structure: (enterprise standard) Q/DFL03-99 ※ flange size: JB78 See Table A9 for main material ※ ※ 1: numerator in the table = nominal diameter and corresponding flange size ※ 2: Deninator in table = flange size of big end flange Main connection dimensions and weight/Dimensions and weights
表(Table)B26
Nominal diameter Size
Standard value Standard
Reference value Reference
DN (mm)
L
D
D1
D2
f
b
Z-Φd
Do
H
W(Kg)
PN1.0(MPa)
15/20
Enterprise standard for structure length and diameter
95/105
65/75
45/55
2/2
14/16
4-Φ14/4-Φ14
120
80
2.5
15/25
95/115
65/85
45/65
2/2
14/16
4-Φ14/4-Φ14
120
80
2.8
15/32
95/135
65/100
45/78
2/2
14/18
4-Φ14/4-Φ18
120
80
3.0
20/25
105/115
75/85
55/65
2/2
16/16
4-Φ14/4-Φ14
140
90
3.5
20/32
105/135
75/100
55/78
2/2
16/18
4-Φ14/4-Φ18
140
90
3.8
20/40
105/145
75/110
55/85
2/3
16/18
4-Φ14/4-Φ18
140
90
4.2
32/40
135/145
100/110
78/85
2/3
18/18
4-Φ18/4-Φ18
160
110
5.7
32/50
135/160
100/125
78/100
2/3
18/20
4-Φ18/4-Φ18
160
110
6.2
32/65
135/180
100/145
78/120
2/3
18/20
4-Φ18/4-Φ18
160
110
6.8
40/50
145/160
110/125
85/100
3/3
18/20
4-Φ18/4-Φ18
200
120
7.2
40/65
145/180
110/145
85/120
3/3
18/20
4-Φ18/4-Φ18
200
120
7.8
40/80
145/195
110/160
85/135
3/3
18/22
4-Φ18/4/8-Φ18
200
120
8.0
50/65
160/180
125/145
100/120
3/3
20/20
4-Φ18/4-Φ18
250
135
9.5
50/80
160/195
125/160
100/135
3/3
20/22
4-Φ18/4/8-Φ18
250
135
10.5
50/100
160/215
125/180
100/155
3/3
20/22
4-Φ18/8-Φ18
250
135
12.1
65/80
180/195
145/160
120/135
3/3
20/22
4-Φ18/8-Φ18
300
145
15
65/100
180/215
145/180
120/155
3/3
20/22
4-Φ18/4/8-Φ18
300
145
16.5
65/125
180/245
145/210
120/185
3/3
20/24
4-Φ18/8-Φ18
300
145
17.1
80/100
195/215
160/180
135/155
3/3
22/22
4/8-Φ18/8-Φ18
350
185
19
80/125
195/245
160/210
135/185
3/3
22/24
4/8-Φ18/8-Φ18
350
185
22
80/150
195/280
160/240
135/210
3/3
22/24
4/8-Φ18/8-Φ23
350
185
25
100/125
215/245
180/210
155/185
3/3
22/24
8-Φ18/8-Φ18
400
195
33
100/150
215/280
180/240
155/210
3/3
22/24
8-Φ18/8-Φ23
400
195
35
100/200
215/335
180/295
155/265
3/3
22/26
8-Φ18/8-Φ23
400
195
38
125/150
245/280
210/240
185/210
3/3
24/24
8-Φ18/8-Φ23
500
210
58
125/200
245/335
210/295
185/265
3/3
24/26
8-Φ18/8-Φ23
500
210
62
125/250
245/390
210/350
185/320
3/3
24/28
8-Φ18/12-Φ23
500
210
71
150/200
280/335
240/295
210/265
3/3
24/26
8-Φ23/18-Φ23
200*
450
93
150/250
280/390
240/350
210/320
3/3
24/28
8-Φ23/12-Φ23
200*
450
105
150/300
280/440
240/400
210/368
3/3
24/28
8-Φ23/12-Φ23
200*
450
122
200/250
335/390
295/350
265/320
3/4
26/28
8-Φ23/12-Φ23
240*
490
155
200/300
335/440
395/400
265/368
3/4
26/28
8-Φ23/12-Φ23
240*
490
167
200/350
335/500
295/460
265/428
3/4
26/30
8-Φ23/16-Φ23
240*
490
198
250/300
390/440
350/400
320/368
3/4
28/28
12-Φ23/12-Φ23
240*
550
210
250/350
390/500
350/460
320/428
3/4
28/30
12-Φ23/16-Φ23
240*
550
225
250/400
390/565
350/515
320/482
3/4
28/32
12-Φ23/16-Φ25
240*
550
240
* flange size PN1.0MPa, DN80 bolt hole number JB78 when Z = 4, other standards when Z = 8 * When ordering, the matching of flange specifications at both ends should be reconfirmed.
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