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Spring micro-opening closed safety valve


Spring micro-opening closed safety valve
Stable quality: implement quality monitoring throughout the process, meticulous and comprehensive detection!

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

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Sales: 021-31007323
Fax: 021-333321522
Technology: 021-31007323

product manual Pledge Order process

 

  Product name : Spring micro-opening closed safety valve Product model : A41Y A41H, A41Y
   Driving method : Manual Connection form : Flange
   Structure form : Micro-enclosed    Sealing material : Overlaying Co-based cemented carbide
   Pressure range : MPa 1.6 ~ 10.0 MPa    Nominal diameter : DN50-DN800
   Common materials : Carbon steel, stainless steel    Technical consultation : 021-31007323

是国内著名〖 弹簧微启封闭式安全阀 〗制造商,也是国内大型【 安全 】生产商之一,公司自成立以来始终围绕客户的需求并持续创新,为广大的代理商和企业客户提供〖 弹簧微启封闭式安全阀 〗解决方案,质量可靠,价格实惠,故畅销全国各地,欢迎新老客户来电,来函,我们将为您提供最优质的服务。 Hushan Valve Manufacturing (Shanghai) Co., Ltd. is a well-known domestic manufacturer of [ Spring Micro-Opening Closed Safety Valve ] and one of the large domestic [ safety valve ] manufacturers. Since its establishment, the company has always focused on customer needs and continued innovation. The majority of agents and corporate customers provide the " Spring Micro Opening Closed Safety Valve" solution, which is reliable in quality and affordable, so it sells all over the country. Welcome new and old customers to call us or write us, we will provide you with the best service.

I. Overview of spring micro-opening closed safety valve

弹簧微启封闭式安全阀 适用于工作温度≤300℃的石油气、空气、水等介质的设备或管路上。 A41H spring micro-opening closed safety valve is suitable for equipment or pipelines with working temperature ≤300 ℃ such as petroleum gas, air, water and other media. 适用于工作温度≤200℃有腐蚀性介质的设备或管路上,作为超压保护装置。 Spring micro-opening safety valve is suitable for equipment or pipeline with operating temperature ≤200 ℃ as an overpressure protection device. When the pressure in the equipment and pipeline exceeds the allowable value, the valve automatically opens, and then the full amount is discharged; when the pressure drops to the specified value, the valve automatically closes to ensure the safe operation of the equipment and pipeline. The connection flange standard is according to JB / T ... 94 / series.
 

Second, the structure of spring micro-enclosed closed safety valve


1. Spring micro-opening safety valve has the characteristics of simple structure, good sealing performance, accurate opening pressure, large discharge capacity, small back seat pressure difference, and easy adjustment.
2. Nozzle-type seat: The valve seat is a Weir nozzle-type seat, the steam reaches the speed of sound when passing through the outlet of the valve seat, the emission coefficient is large, the sealing surface of the valve seat is welded with cobalt chromium tungsten carbide, wear-resistant Eclipse, long life.
3. Thermoelastic valve disc: The valve disc is designed as a thermoelastic structure, which uses its slight deformation under the pressure of the medium to improve the sealing ability, and overcomes the front leakage phenomenon of the safety valve when the pressure is near the set pressure under the pressure of the medium. The sealing surface of the valve disc adopts advanced laser quenching technology, which improves the hardness, wear resistance and impact resistance.
4. Adjusting nut: By adjusting the adjusting nut and adjusting the spring compression, the valve can obtain the accurate setting pressure very conveniently and quickly.
5. Back pressure adjustment sleeve: Auxiliary mechanism for adjusting the back pressure of the valve flap. By adjusting the back pressure adjustment sleeve, a proper back seat pressure difference can be obtained. When adjusting upwards, reduce the valve back pressure. When lowered, increase the valve back pressure.
Spring micro-opening closed safety valve

Third, spring micro-open closed safety valve installation instructions

1. The safety valve must be installed vertically, and preferably installed directly on the joint of the container or pipeline. The inner diameter of the joint should not be less than the inlet diameter of the safety valve.
2. An appropriate expansion joint must be installed at the outlet of the safety valve to prevent the thermal expansion of the discharge pipe from bringing unwarranted thermal stress to the safety valve. The inner diameter of the discharge pipe should be larger than the diameter of the valve outlet, and the length should be as short as possible to avoid turning. The weight of the discharge pipe and expansion joint shall not act on the safety valve, and shall be fixed on the building. The distance between the centerline of the discharge pipe and the centerline of the valve body is as short as possible. Drain pipes shall be installed separately for each safety valve.
3. There must be sufficient area at the outlet of the muffler to prevent back pressure from affecting the discharge capacity of the valve.
 

Four, spring micro-open closed safety valve series models


A41H-16C Structure drawing of spring micro-open closed safety valve
A41H-25
A41H-40
A41Y-64
A41Y-100
A41H-16C
A41Y-16P
A41Y-25P
A41Y-40P
A41Y-64P
A41Y-100P
A41Y-25P
A41Y-16R
A41Y-25R
A41Y-40R
A41Y-64R
A41Y-100R
KA41Y-40R

V. Material of main parts of spring micro-opening closed safety valve


NO

Part Name A41H-C / A41Y-C material A41Y-P material A41Y-R material

1

Valve body

WCB

ZG1Cr18Ni9Ti

ZG1Cr18Ni12Mo2Ti

2

Valve seat

ZG2Cr13 / 1Cr18Ni9Ti

ZG1Cr18Ni9Ti

ZG1Cr18Ni12Mo2Ti

3

Adjustment ring

ZG2Cr13 / 1Cr18Ni9Ti

ZG1Cr18Ni9Ti

ZG1Cr18Ni12Mo2Ti

4

Disc

2Cr13 / 1Cr18Ni9Ti

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

5

Guide sleeve

ZG2Cr13 / 1Cr18Ni9Ti

ZG1Cr18Ni9Ti

ZG1Cr18Ni12Mo2Ti

6

cap

ZG230-450

ZG230-450

ZG230-450

7

spring

50CrVA

50CrVA coated fluoroplastic

50CrVA coated fluoroplastic

8

Valve stem

2Cr13

2Cr13

1Cr18Ni12Mo2Ti

9

Adjusting screw

45

2Cr13

2Cr13

10

Protective cover

ZG200-400

ZG200-400

ZG200-400

 

Sealing surface material

Surfacing D507

Overlaying Co-based cemented carbide


Dimensions and connection dimensions of spring micro-opening closed safety valve

,

model

Nominal diameter do D K g g1 b f f1 Z- ¢ d DN ' D1 K1 g2 g ' b1 f ' f1 ' Z1- ¢ d1 L L1 ≈H

A41H-16C
A41Y-16P
A41Y-16R

20

15

105

75

 

55

16

2

 

4-14

20

105

75

55

 

16

2

 

4-14

100

85

276

25

20

115

85

 

65

16

2

 

4-14

25

115

85

65

 

16

2

 

4-14

100

85

276

32

25

140

100

 

78

18

2

 

4-18

32

140

100

78

 

18

2

 

4-18

115

100

285

40

32

150

110

 

85

18

3

 

4-18

40

150

110

85

 

18

3

 

4-18

120

110

292

50

40

165

125

 

100

20

3

 

4-18

50

165

125

100

 

20

3

 

4-18

135

120

370

65

50

185

145

 

120

20

3

 

4-18

65

185

145

120

 

20

3

 

4-18

140

130

375

80

65

200

160

 

135

20

3

 

8-18

80

200

160

135

 

20

3

 

8-18

160

135

373

100

80

220

180

 

155

twenty two

3

 

8-18

100

220

180

155

 

twenty two

3

 

8-18

170

160

513

125

100

250

210

 

185

twenty two

3

 

8-18

125

250

210

185

 

twenty two

3

 

8-18

190

190

560

150

125

285

240

 

210

twenty four

3

 

8-23

150

285

240

210

 

twenty four

3

 

8-23

205

195

570

200

150

340

295

 

265

26

3

 

12-23

200

340

295

265

 

26

3

 

12-23

240

230

717

250

200

405

355

 

320

30

3

 

12-26

250

405

355

320

 

30

3

 

12-26

350

320

940

300

250

460

410

 

375

30

4

 

12-26

300

460

410

375

 

30

4

 

12-26

350

320

980

A41H-25
A41Y-25P
A41Y-25R

20

15

105

75

 

55

16

2

 

4-14

20

105

75

55

 

16

2

 

4-14

100

85

276

25

20

115

85

 

65

16

2

 

4-14

25

115

85

65

 

16

2

 

4-14

100

85

276

32

25

140

100

 

78

18

2

 

4-18

32

140

100

78

 

18

2

 

4-18

115

100

285

40

32

150

110

 

85

18

3

 

4-18

40

150

110

85

 

18

3

 

4-18

120

110

292

50

40

165

125

 

100

20

3

 

4-18

50

165

125

100

 

20

3

 

4-18

135

120

370

65

50

185

145

 

120

twenty two

3

 

8-18

65

185

145

120

 

20

3

 

4-18

140

130

375

80

65

200

160

 

135

twenty four

3

 

8-18

80

200

160

135

 

20

3

 

8-18

160

135

373

100

80

230

190

 

160

twenty four

3

 

8-23

100

220

180

155

 

20

3

 

8-18

170

160

513

125

100

270

220

 

188

28

3

 

8-26

125

250

210

185

 

twenty two

3

 

8-18

190

190

560

150

125

300

250

 

218

30

3

 

8-26

150

285

240

210

 

twenty four

3

 

8-23

205

195

570

200

150

360

310

 

278

34

3

 

12-26

200

340

295

265

 

26

3

 

12-23

240

230

717

250

200

425

370

 

332

36

3

 

12-30

250

405

355

320

 

30

3

 

12-26

350

320

940

300

250

485

430

 

390

40

4

 

16-30

300

460

410

375

 

30

4

 

12-26

350

320

980

A41H-40
A41Y-40P
A41Y-40R

20

15

105

75

51

55

16

2

4

4-14

20

105

75

55

 

16

2

 

4-14

100

85

276

25

20

115

85

58

65

16

2

4

4-14

25

115

85

65

 

16

2

 

4-14

100

85

276

32

25

140

100

66

78

18

2

4

4-18

32

140

100

78

 

18

2

 

4-18

115

100

285

40

32

150

110

76

85

18

3

4

4-18

40

150

110

85

 

18

3

 

4-18

120

110

292

50

40

165

125

88

100

20

3

4

4-18

50

165

125

100

 

20

3

 

4-18

135

120

370

65

50

185

145

110

120

twenty two

3

4

8-18

65

185

145

120

 

20

3

 

4-18

140

130

375

80

65

200

160

121

135

twenty two

3

4

8-18

80

200

160

135

 

20

3

 

8-18

160

135

373

100

80

235

190

150

160

twenty four

3

4.5

8-23

100

220

180

155

 

twenty two

3

 

8-18

170

160

513

125

100

270

220

176

188

28

3

4.5

8-26

125

250

210

185

 

twenty two

3

 

8-18

190

190

560

150

125

300

250

204

218

30

3

4.5

8-26

150

285

240

210

 

twenty four

3

 

8-23

205

195

570

200

150

375

320

260

282

38

3

4.5

12-30

200

340

295

265

 

26

3

 

12-23

240

230

717

250

200

450

385

313

345

42

3

4.5

12-34

250

405

355

320

 

30

3

 

12-26

350

320

940

300

250

515

450

364

408

46

4

4.5

16-34

300

460

410

375

 

30

4

 

12-26

350

320

980

A41H-64
A41Y-64
A41Y-64P
A41Y-64R

20

15

130

90

51

68

20

2

4

4-18

20

105

75

55

51

16

2

4

4-14

100

95

268

25

20

140

100

58

78

twenty two

2

4

4-18

25

115

85

65

58

16

2

4

4-14

100

95

268

32

25

155

110

66

82

twenty four

2

4

4-23

32

140

100

78

66

18

2

4

4-18

115

105

279

40

32

170

125

76

95

twenty four

3

4

4-23

40

150

110

85

76

18

3

4

4-18

135

115

330

50

40

180

135

88

105

26

3

4

4-23

50

165

125

100

88

20

3

4

4-18

160

125

360

65

50

205

160

110

130

28

3

4

8-23

65

185

145

120

110

twenty two

3

4

8-18

175

160

503

80

65

215

170

121

140

30

3

4

8-23

80

200

160

135

121

twenty two

3

4

8-18

175

160

498

100

80

250

200

150

168

32

3

4.5

8-26

100

235

190

160

150

twenty four

3

4.5

8-23

190

180

530

150

100

345

280

204

240

38

3

4.5

8-34

150

300

250

218

204

30

3

4.5

8-26

280

260

657

A41H-100
A41Y-100
A41Y-100P
A41Y-100R

20

15

130

90

51

68

twenty two

2

4

4-18

20

105

75

55

51

16

2

4

4-14

100

95

268

25

20

140

100

58

78

twenty four

2

4

4-18

25

115

85

65

58

16

2

4

4-14

100

95

268

32

25

155

110

66

82

twenty four

2

4

4-23

32

140

100

78

66

18

2

4

4-18

115

105

279

40

32

170

125

76

95

26

3

4

4-23

40

150

110

85

76

18

3

4

4-18

135

115

330

50

40

195

145

88

112

28

3

4

4-26

50

165

125

100

88

20

3

4

4-18

160

125

360

65

50

220

170

110

138

32

3

4

8-26

65

185

145

120

110

twenty two

3

4

8-18

175

160

503

80

65

230

180

121

148

34

3

4

8-26

80

200

160

135

121

twenty two

3

4

8-18

175

160

498

100

80

265

210

150

172

38

3

4.5

8-30

100

235

190

160

150

twenty four

3

4.5

8-23

190

180

530

150

100

355

290

204

250

46

3

4.5

12-34

150

300

250

218

204

30

3

4.5

8-26

280

260

657

 

Related Products:

A41 type micro-opening safety valve A28 full open safety valve A44 Closed Full Open Safety Valve with Wrench A48 high temperature and high pressure full-open safety valve
A37H safety valve A37H safety valve A42F safety valve Spring micro-opening safety valve
A46 pilot operated safety valve A28 type full open safety valve A41Y-160 (320) Safety valve WA42Y balance type safety valve

 

 

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