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Ammonia Ball Valve Q41F-16
Product Name:
Ammonia Ball Valve Q41F-16
Description:

氨气球阀 Q41

氨气球阀在物理化学实验中,经常要用到氧气、氮气、氢气、氩气等气体。这些气体一般都是贮存在专用的高压气体钢瓶中。使用时通过减压阀使气体压力降至实验所需范围,再经过其它控制阀门细调,使气体输入使用系统。最常用的氨气球阀为,简称氨气.
1,氨气球阀的外观及工作原理。
    氨气阀门的高压腔与钢瓶连接,低压腔为气体出口,并通往使用系统。高压表的示值为钢瓶内贮存气体的压力。低压表的出口压力可由调节螺杆控制。
   使用时先打开钢瓶总开关,然后顺时针转动低压表压力调节螺杆,使其压缩主弹簧并传动薄膜、弹簧垫块和顶杆而将活门打开。这样进口的高压气体由高压室经节流减压后进入低压室,并经出口通往工作系统。转动调节螺杆,改变活门开启的高度,从而调节高压气体的通过量并达到所需的压力值。
    氨气球阀都装有安全阀。它是保护氨气减压阀并使之安全使用的装置,也是氨气球阀出现故障的信号装置。如果由于活门垫、活门损坏或由于其它原因,导致出口压力自行上升并超过一定许可值时,安全阀会自动打开排气。
2.氨气球阀的使用方法
(1)按使用要求的不同,氨气减压阀有许多规格。最高进口压力大多为,最低进口压力不小于出口压力的2.5倍。出口压力规格较多,一般为,最高出口压力为。
(2)安装氨气球阀时应确定其连接规格是否与和使用系统的接头相一致。氨气球阀采用半球面连接,靠旋紧螺母使二者完全吻合。因此,在使用时应保持两个半球面的光洁,以确保良好的气密效果。安装前可用高压气体吹除灰尘。必要时也可用聚四氟乙烯等材料作垫圈。
(3)氨气球阀应严禁接触油脂,以免发生火警事故。
(4)停止工作时,应将减压阀中余气放净,然后拧松调节螺杆以免弹性元件长久受压变形。
(5)氨气球阀应避免撞击振动,不可与腐蚀性物质相接触。
这些氨气阀门的使用方法及注意事项与氨气阀门基本相同。但是,还应该指出:专用氨气阀门一般不用于其它气体。为了防止误用,有些氨气阀与钢瓶之间采用特殊连接口。例如氢气和丙烷均采用左牙螺纹,也称反向螺纹,安装时应特别注意。

氨气球阀
性能参数:

型号
通径(DN)
主要外形尺寸(mm)
阀体材料

适用温度
(℃)

适用介质
L
H
D
D1
d-z
W
Q41F-16
15
130
76
95
65
14-4
130

铸 钢
不锈钢

150
氨、氨液
20
150
82
105
75
14-4
130
-
25
160
94
115
85
14-4
160
-
32
165
103
135
100
18-4
160
-
-
-
-
40
180
155
145
110
18-4
230
-
-
-
-
50
200
160
160
125
18-4
230
-
-
-
-
65
220
177
180
145
18-4
400
-
-
-
-
80
250
215
195
160
18-8
400
-
-
-
-
100
280
245
215
180
18-8
700
-
-
-
-
125
320
260
245
210
18-8
1100
-
-
-
-
150
360
270
280
240
23-8
1100
-
-
-
-
200
400
370
335
295
23-12
1500
-
-
-
-
250
533
-
405
355
25-12
-
-
-
-
-
300
610
-
460
410
25-12
-
-
-
-
Q41F-25
15
130
76
95
65
14-4
130
-
-
-
20
150
82
105
75
14-4
130
-
-
-
-
25
160
94
115
85
14-4
160
-
-
-
-
32
165
153
135
100
18-4
160
-
-
-
-
40
180
162
145
110
18-4
230
-
-
-
-
50
200
175
160
125
18-4
230
-
-
-
-
65
220
190
180
145
18-8
400
-
-
-
-
80
250
215
195
160
18-8
400
-
-
-
-
100
260
245
215
180
18-8
700
-
-
-
-
125
320
260
245
210
23-8
1100
-
-
-
-
150
360
275
280
240
23-8
1100
-
-
-
-
200
400
-
335
295
23-12
-
-
-
-
-
250
568
-
425
370
30-12
-
-
-
-
-
300
648
-
485
430
30-16
-
-
-
-
Q41F-40
15
130
103
95
65
14-4
130
-
-
-
20
150
112
105
75
14-4
130
-
-
-
-
25
160
123
115
85
14-4
160
-
-
-
-
32
180
150
135
100
18-4
160
-
-
-
-
40
200
165
145
110
18-4
230
-
-
-
-
50
220
172
160
125
18-4
230
-
-
-
-
65
250
197
180
145
18-8
400
-
-
-
-
80
280
222
195
160
18-8
400
-
-
-
-
100
320
236
230
190
23-8
700
-
-
-
-
125
400
236
270
220
25-8
1100
-
-
-
-
150
403
295
300
250
25-8
1500
-
-
-
-
200
550
375
320
30-12
1500
-
-
-
-
250
787
-
470
400
41-12
-
-
-
-
-
300
838
-
530
460
41-16
-
-


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