Ammonia Special Globe Valve
Technical Parameters
Product model: J41B、J41F
Nominal Diameter：DN15～DN300
Nominal pressure：PN1.6～4.0MPa
Temperature range：-40℃～150℃
Applicable media: low-temperature media such as propane, propylene, methanol, ethane, coal gas, liquid ammonia, liquefied natural gas, etc
Main materials: cast steel, stainless steel, etc
Overview
The sealing surface of the ammonia dedicated shut-off valve is made of babbitt alloy, tetrafluoroethylene, nylon, etc. Adopting low-temperature resistant high-quality carbon steel or stainless steel as the valve body, with a long service life. It is installed on the equipment or pipeline of the refrigeration system to connect and cut off the flow channel of the refrigerant. During use, it can naturally achieve chemical treatment performance in the environment of temperature difference amplitude changes. Suitable for opening and closing ammonia, ammonia liquid medium pipelines and liquefied gas pipelines at temperatures of -40~+150 ℃. Mainly suitable for use in refrigeration, chemical, petroleum, food, smelting, liquefied gas, and other units.
Material for main parts
|
Part Name |
Valve body, valve cover |
sealing ring |
filler |
Packing gland |
valve stem |
shim |
|
J41B-25C |
cast steel |
Babbitt alloy |
Polytetrafluoro ethylene |
carbon steel |
Polytetrafluoro ethylene |
|
|
J41B-25Z |
Grey cast iron |
|||||
|
J41B-25P |
stainless steel |
stainless steel |
||||
|
J41F-25Z |
Grey cast iron |
|
carbon steel |
|||
Main performance specifications
|
PN（MPA） |
PS（MPa） |
Applicable Medium |
Temperature（℃） |
|
|
2.5 |
3.8 |
ammonia、 Ammonia solution, etc NH3 |
Babbitt alloy -40℃ +150℃ |
Tetrafluoro -40℃ +200℃ |
|
4.0 |
6.4 |
|||
Main connection dimensions
|
Nominal Diameter DN（mm） |
size（mm） |
|||||||||||
|
L |
D |
D1 |
D2 |
D4 |
b |
f |
f1 |
Z-φd |
關 |
開 |
D3 |
|
|
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 |
