VIP member
ammonia valve
The sealing surface of J41b ammonia flange globe valve is made of Babbitt alloy, PTFE, nylon, etc. The valve body is made of low-temperature resistant
Product details
The sealing surface of J41b ammonia flange globe valve is made of Babbitt alloy, PTFE, nylon, etc. The valve body is made of low-temperature resistant high-quality carbon steel or stainless steel, with a long service life. It is installed on the equipment or pipelines of the refrigeration system to connect and cut off the channels for the flow of refrigerant. It can naturally achieve chemical treatment performance in environments with temperature differences during use.
Main purpose
Ammonia flange globe valve suitable for temperature-The pipeline and liquefied gas pipeline of ammonia and ammonia liquid medium at 40~+120 degrees Celsius are used for opening and closing. Mainly suitable for use in freezing, refrigeration, chemical, petroleum, food, smelting, liquefied gas and other units.
Scope of use
Tongjing Range:DN15～DN300
Pressure range:1.6MPa～4.0MPa
Temperature range:-40℃～120℃
Medium range: Low temperature media such as propane, propylene, methanol, ethane, coal gas, liquid ammonia, liquefied natural gas, etc
Material for main parts
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Part name
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Valve body and valve cover
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sealing ring
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filler
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Packing gland
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valve stem
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shim
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J41B-25C
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cast steel
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Babbitt alloy
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Polytetrafluoroethylene
Ethylene |
carbon steel
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Polytetrafluoroethylene
Ethylene |
|
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J41B-25Z
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Grey cast iron
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|||||
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J41B-25P
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stainless steel
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stainless steel
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||||
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J41F-25Z
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Grey cast iron
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PTFE
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carbon steel
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performance parameter
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nominal pressurePN（MPA）
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test pressurePS（MPa）
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Applicable Medium
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Applicable temperature (℃)
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|
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2.5
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3.8
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Ammonia gas
Ammonia solution, etc NH3 |
Babbitt alloy
-40℃ +150℃ |
Tetrafluoroethylene
-40℃ +200℃ |
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4.0
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6.4
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Main external connection dimensions
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Nominal Diameter
DN（mm） |
Size（mm）
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|||||||||||
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L
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D
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D1
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D2
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D6
|
b
|
f
|
f1
|
Z-φd
|
close
|
open
|
D0
|
|
|
10
|
130
|
90
|
60
|
40
|
35
|
16
|
2
|
4
|
4-φ14
|
165
|
185
|
110
|
|
15
|
130
|
95
|
65
|
45
|
40
|
16
|
2
|
4
|
4-φ14
|
165
|
185
|
110
|
|
20
|
150
|
105
|
75
|
55
|
51
|
18
|
2
|
4
|
4-φ14
|
170
|
200
|
120
|
|
25
|
160
|
115
|
85
|
65
|
58
|
18
|
2
|
4
|
4-φ14
|
197
|
210
|
120
|
|
32
|
180
|
135
|
100
|
78
|
66
|
20
|
2
|
4
|
4-φ18
|
199
|
213
|
140
|
|
40
|
200
|
145
|
110
|
85
|
76
|
20
|
3
|
4
|
4-φ18
|
248
|
264
|
160
|
|
50
|
230
|
160
|
125
|
100
|
88
|
22
|
3
|
4
|
4-φ18
|
265
|
295
|
180
|
|
65
|
290
|
180
|
145
|
120
|
110
|
24
|
3
|
4
|
8-φ18
|
310
|
349
|
220
|
|
80
|
310
|
195
|
160
|
135
|
121
|
26
|
3
|
4
|
8-φ18
|
340
|
357
|
240
|
|
100
|
350
|
230
|
190
|
160
|
150
|
30
|
3
|
4.5
|
8-φ23
|
380
|
413
|
280
|
|
125
|
400
|
270
|
220
|
188
|
176
|
32
|
3
|
4.5
|
8-φ25
|
430
|
451
|
320
|
|
150
|
480
|
300
|
250
|
218
|
204
|
32
|
3
|
4.5
|
8-φ25
|
505
|
492
|
360
|
|
200
|
600
|
360
|
310
|
278
|
260
|
34
|
3
|
4.5
|
12-φ25
|
550
|
806
|
400
|
|
250
|
650
|
425
|
370
|
335
|
31
|
36
|
3
|
4.5
|
12-φ30
|
730
|
880
|
450
|
|
300
|
750
|
485
|
430
|
390
|
364
|
40
|
3
|
4.5
|
16-φ30
|
-
|
995
|
550
|
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