d7a1x型中线对夹蝶阀wafer type butterflyvalve
中线对夹蝶阀(对夹式中线蝶阀)的相关标准如下:
产品执行标准productstandard:
设计标准
design standard
结构长度
face to face dimensions
侧法兰标准
flange standard
试验检验标准
test and check up standard
gb/t 12238
api 609
gb/t 12221
api 609
gb/t 17241.6
gb/t 13927
api 598
产品特点：
对夹中线蝶阀主要由阀体、转轴、阀板、阀座及驱动机构（手柄、蜗轮蜗杆、气动装置或电动装置）等组成，靠驱动机构带动转轴及阀板旋转以实现启闭和控制流量的目的。对夹式蝶阀特点如下：
结构简单、小巧轻便，运输、安装、拆卸容易;90°启闭，开关迅速。操作扭矩小，省力轻巧;密封性能好，使用寿命长，可达到零泄漏;选择不同的零部件材质，可适用于多种介质;流量特性近似于直线，调节性能好。
abutterfly valveconsists of body ,stem ,disc ,actuator (manual actuator, worm-gear actuator , aerodynamicactuator or electric actuator) , andwafer type butterflyvalvecan implement the process for turning on turning offand regulating the flow by the circumrotation of stem and disc thatis droved by actuators.
1.simple and compact construction. small in size and light inweight. easy transportation , installation and maintenance.
2. quick 90 degrees on-off operation. minimized operating torque,energy saving.
3. excellent sealing performance with no leakage. long servicelife.
4. wide selection of materials ,applicable for various media..
5. flow curve tending to straight line. excellent regulationperformance.主要性能参数main performanceparameters:
公称压力
nominal pressure
pn(mpa)
公称通径
nominal
diameter
dn(mm)
试验压力
testing pressure
（mpa）
适用温度
suitable temperature
°c
适用介质
suitable medium
驱动方式
actuation ways
壳体
shell
密封
seal
1.0
dn50 ~ dn1000
1.5
1.1
－45~ 150
淡水、污水、海水、空气、蒸汽、食品、药品、各种油类、酸类、碱类等
fresh water, sewage, sea water, air,vapor, food,medicine, oils, acids,
alkalis, etc.
手柄、蜗轮蜗杆、
电动、气动
manual actuator,
worm-gear actuator, aerodynamic actuator andelectric actuator
1.6
2.4
1.76
主要连接尺寸及重量outline dimensions &connection dimensions & weight:
规格 size
a
b
c
d
l
h
d1
n-ø
k
e
n1-ø1
ø2
g
重量kg
weight
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
57.15
4-6.7
12.6
143
3.6
100
4′
200
114
52.1
104
32
70.8
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
92.4
357
4-29
115
88.9
4-14.3
28.45
325
19.2
300
12′
337
242
76.9
301.6
45
105.34
407
4-29
140
107.95
4-14.3
31.60
403
32.5
350
14′
368
267
76.5
333.5
45
91.11
467
4-30
140
107.95
4-14.3
31.60
436
41.3
400
16′
400
309
85.7
389.6
51.2
100.47
515
4-26
197
158.75
4-20.6
3
488
61
72
102.42
525
4-30
37.9
450
18′
422
328
104.6
440.5
51.2
88.39
565
4-26
197
158.75
4-20.6
38.0
539
79
72
91.51
585
4-30
42.86
500
20′
480
360
130.28
491.6
52.75
96.99
620
4-26
197
158.75
4-20.6
41.15
594
128
77.5
101.68
650
4-33
45.72
600
24′
562
459
151.36
592.5
70.2
113.42
725
20-30
276
215.9
4-22.2
50.65
824
188
82
120.46
770
20-36
53.98
700
28′
624
520
163
695
66
109.65
840
24-30
300
254
8-18
63.35
895
284
82
20-36
800
32′
672
591
188
794.7
66
124.0
950
24-33
300
254
8-18
63.35
1015
368
82
24-39
900
36′
720
656
203
864.7
118
117.57
1050
24-33
300
254
8-18
75.0
1115
713
1000
40′
800
722
216
965
141
129.89
1160
24-36
300
254
8-18
85.0
1230
864
注：1、dn50~dn800蝶阀分别适用于pn1.0/pn1.6mpa两种压力级，表中每规格中有两个尺寸的分别表示pn1.0mpa和pn1.6mpa两种压力级连接尺寸。蝶阀上法兰可通用于手动、蜗轮蜗杆传动、电动、气动等。表中d1及n-ø尺寸为蝶阀安装定位尺寸，包容国标（gb）、（iso）、德标（din）、英标（bs）等法兰连接标准。
2、d1及n-ø尺寸可按国标（gb）、（iso）、美标（ansi）、德标（din）、英标（bs）、日标（jis）加工生产。e及n1-ø1尺寸可按gb/t12223及iso 5211标准加工生产。
note: 1、dn50~dn800 butterfly valves are suitablefor the pressure of pn1.0 and pn1.6mpa grade separately. twodimensions in one size show the connection dimensions ofpn1.0/pn1.6mpa pressure grade. the upper flanges of the valves aresuitable all types of valves fitted with electric, worm gear,manual, pneumatic and actuators. the dimensions d1 and n-ø arelisted in above table show the installation dimensions of butterflyvalve. it contains china standard (gb), international standard(iso), germany standard (din), and england standard (bs) of flangeconnection standard, etc.
2、the dimensions of d1 and n-ø ones aremanufactured according to china standard (gb), internationalstandard (iso), american standard (ansi), germany standard (din),england standard (bs), and japan standard (jis). the dimensions ofe and n1-ø1 ones are manufactured according to gb/t 12223 and iso5211 standard.