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Ammonia shut-off valve J41b

Ammonia shut-off valve J41b

  • Cname:Gate Stop Valve Series
  • Date:2024-07-25 18:09:26
24-hour free hotline:15351513002
  • Detail

J41b ammonia shut-off valves often require gases such as oxygen, nitrogen, hydrogen, argon, etc. These gases are usually stored in dedicated high-pressure gases. When in use, the gas pressure is reduced to the required range for the experiment through an ammonia shut-off valve, and then finely adjusted through other control valves to input the gas into the system.
Structural characteristics
The flange of J41b ammonia shut-off valve is a square structure, and the valve stem is connected by a connecting rod.
2. The sealing surface of the valve body adopts a spherical convex shape, which is sealed with a line matching the valve foot.
3. The sealing surface is made of Babbitt alloy, which has good sealing performance and long service life. The main performance specifications are applicable to media such as liquid, gas, ammonia, nitrogen, and hydrogen. The applicable temperature is -10 ℃ -150 ℃

Test pressure of ammonia shut-off valve

nominal pressure PN(MPa)

test pressure (MPa)

Shell strength test

Sealing test

1.6

2.4

1.76

2.5

3.75

2.75

Main component materials of ammonia shut-off valve

product type

Part name

Valve body and valve cover

valve stem

filler

Sealing surface

shim

a fastening

J41B-16/25C

cast steel

carbon steel

teflon

Ba Di alloy

asbestos rubber sheet

High quality carbon steel

J41B-16/25Q

nodular cast iron

carbon steel

teflon

Ba Di alloy

asbestos rubber sheet

High quality carbon steel

J41B-16/25K

malleable  iron

carbon steel

teflon

Ba Di alloy

asbestos rubber sheet

High quality carbon steel

Price of ammonia shut-off valve

Main external dimensions of ammonia shut-off valve

Nominal Diameter

DN(mm)

Main external dimensions and connection dimensions(mm)

L

D

D1

D2

D6

b

f

f2

z-d

H

DO

J41B-16C  J41B-16Q  J41B-16K

10

130

90

60

40

35

14

2

4

4-14

196

120

15

130

95

65

45

40

14

2

4

4-14

196

120

20

150

105

75

55

51

16

2

4

4-14

196

140

25

160

115

85

65

58

16

2

4

4-14

204

160

32

180

135

100

78

66

18

2

4

4-18

208

160

40

200

145

110

85

76

18

3

4

4-18

248

200

50

230

160

125

100

88

20

3

4

4-18

248

200

65

290

180

145

125

110

22

3

4

4-18

321

240

80

310

195

160

135

121

24

3

4

8-18

325

240

100

350

215

180

155

150

24

3

4.5

8-18

371

280

125

400

245

210

185

176

26

3

4.5

8-18

400

320

150

480

280

240

210

204

26

3

4.5

8-23

432

320

200

600

335

295

265

260

30

3

4.5

12-23

654

400

250

650

405

335

320

313

32

3

4.5

12-25

745

500

300

700

460

410

375

364

34

3

4.5

12-25

852

600

J41B-25C  J41B-25Q  J41B-25K

10

130

90

60

40

35

16

2

4

4-14

196

120

15

130

95

65

45

40

16

2

4

4-14

196

120

20

150

105

75

55

51

16

2

4

4-14

196

120

25

160

115

85

65

58

18

2

d

4-14

201

120

32

180

135

100

78

66

18

2

4

4-18

208

120

40

200

145

110

85

76

20

2

d

4-18

248

160

50

230

160

125

100

88

20

3

4

4-18

248

160

65

290

180

145

125

110

22

3

4

8-18

321

240

80

310

195

160

135

121

24

3

4

8-18

325

240

100

350

230

190

160

150

24

3

4.5

8-23

371

280

125

400

270

220

188

176

30

3

4.5

8-25

400

320

150

480

300

250

218

204

30

3

4.5

8-25

432

320

200

600

360

310

278

260

34

3

4.5

12-30

654

400

250

650

425

370

332

313

42

3

4.5

12-34

745

500

300

750

485

430

390

364

46

3

4.5

12-34

852

600


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