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J41N LPG stop valve


J41N LPG stop valve
Stable quality: implement quality monitoring throughout the process, meticulous and comprehensive detection!

Reasonable price: efficient internal cost control, reducing expenses and benefiting customers!

Fast delivery: advanced production lines, sufficient stocking, shortening the delivery time!
Sales: 021-31007323
Fax: 021-333321522
Technology: 021-31007323

product manual Pledge Order process

I. Overview of J41N LPG globe valve:

采用 V 型成型四氟为动密封、以填料压着为初始密封、随着介质压力上升而填料密封性能增强、既具有自密封功能、无需人工维护、适用于高中压输送管道。 J41N liquefied gas stop valve adopts V -shaped PTFE as the dynamic seal, with packing pressure as the initial seal, as the medium pressure rises, the packing sealing performance is enhanced, it has a self-sealing function, no manual maintenance, and is suitable for high and medium pressure pipeline . ≧DN200 的以高进低出的规格、本阀门开启轻盈、操作力远远小于普通阀门。 All the valves are equipped with inverted seals. When the valve is opened, the valve must be fully opened to make the inverted seal function to increase the service life of the packing, especially in the specifications of ≧ DN200 with high in and low out. Far smaller than ordinary valves.

Second, J41N liquefied gas stop valve structure principle:

、J41N液化气截止阀系列产品,是针对燃气介质输送的特殊要求,并结合国内阀门应用的实际情况,采用新颖的密封形式和可靠的密封结构设计而成。 1. J41N liquefied gas stop valve series products are designed according to the special requirements of gas medium transportation, combined with the actual situation of domestic valve applications, using novel sealing forms and reliable sealing structures.

、J41N液化气截止阀具有密封性能稳定、使用安全可靠、耐腐蚀性强、无介质内、外漏以及操作轻便等特点,成功解决了化工管道用普通阀门耐腐蚀性能差、壳体易穿孔以及密封性能差、易泄露的难题,特别适用于化工行业氨气、 燃气管道的传送,并满足长期可靠使用的要求。 2. J41N liquefied gas shut-off valve has the characteristics of stable sealing performance, safe and reliable use, strong corrosion resistance, no internal and external leakage of the medium, and easy operation. It has successfully solved the poor corrosion resistance of ordinary valves for chemical pipelines and easy perforation of the casing As well as the problem of poor sealing performance and easy leakage, it is especially suitable for the transportation of ammonia and gas pipelines in the chemical industry and meets the requirements of long-term reliable use. Its tightness, maintainability and safety.   

Third, J41N liquefied gas stop valve main design standards:

Design, manufacturing

GB / T12235-89  

Flange connection

GB9113-2000 JB / T79-94 , GB9113-2000

Nominal diameter

DN15 ~ DN300mm

Structure length

GB12221-89

Nominal pressure

2.5 4.0MP PN1.6 , 2.5 , 4.0MP

Fourth, J41N liquefied gas stop valve main parts material:

Body and bonnet

Stem, disc

Sealing surface

filler

WCB

stainless steel

Stainless steel and nylon

Teflon, NBR

V. Main performance parameters of J41N LPG globe valve:

Nominal pressure

Shell test

Seal test

Upper seal test

Applicable medium

Suitable temperature

JIS-10K

1.6

2.4

1.76

1.76

Liquefied gas,
Natural gas, etc.

-40 ~ + 80 ℃

2.5

3.75

2.75

2.75

JIS-20K

4.0

6.0

4.4

4.4

Six, J41N liquefied gas stop valve main dimensions:

J41N液化气截止阀外形尺寸

Nominal diameter

DN (mm)

型主要连接尺寸和外形尺寸( mm J41N-25 type main connection dimensions and external dimensions ( mm )

L

D

D1

D2

b

f

Z-фd

H

H1

Do

15

130

95

65

45

16

2

4-14

252

194

120

20

150

105

75

55

16

2

4-14

270

200

120

25

160

115

85

65

16

2

4-14

310

235

140

32

180

135

100

78

18

2

4-18

322

260

160

40

200

145

110

85

18

3

4-18

360

345

180

50

230

160

125

100

20

3

4-18

405

370

200

65

290

180

145

120

twenty two

3

8-18

435

420

240

80

310

195

160

135

twenty two

3

8-18

475

455

280

100

350

230

190

160

twenty four

3

8-23

525

495

320

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