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Closed Spring Loaded Full Bore Type Safety Valve, Size DN25mm ~ DN400mm
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Tel:+86-21 5620 6641
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Closed Spring Loaded Full Bore Type Safety Valve,  Size DN25mm ~ DN400mm


Applications

A42Y-C type are used for the equipment and pipeline of the air, petroleum gas, liquid etc medium what the working tempera-true are less than 300℃.

A42Y-P type and A42Y-R type are used for the equipment and pipeline of the quality with corrode medium What the working temperature are less than 200℃. A48Y is be used in equipments and pipelines of steam, air with operation temperature no higher than 350. Take for extra pressure protection devices.

Flange connecting dimensions of comply with Standard series first of JB/T: -94, Comply with Standard Service of JB/T----94 when more than 6.4Mpa.


Closed Spring Loaded Full Bore Type Safety Valve

Nominal

Diameter

DN (mm)

Dimensions (mm)

d0

L

L1

DN’

25

15

110

95

32

32

20

115

100

40

40

25

120

110

50

50

32

165

120

65

65

40

160

135

80

80

50

170

135

100

100

65

195

175

125

125

80

210

190

150

150

100

255

230

175

200

125

300

260

250

250

150

350

320

300

300

200

380

350

400

350

300

500

450

500

400

350

500

450

500

 

Materials for main parts

No.

Name of part

A42Y-C    A48Y-C  KA42Y-C Materials

A42Y-P/KA42Y-P

Materials

A42Y-R

Materials

DA42Y-P

Materials

1

Nozzle

2Cr13/1Cr18Ni9Ti

ZG1Cr18Ni9Ti

ZG1Cr18Ni12Mo2Ti

ZG1Cr18Ni9Ti

2

Body

WCB

ZG1Cr18Ni9Ti

ZG1Cr18Ni12Mo2Ti

LCB/ZG1Cr18Ni9Ti

3

Adjusting ring

2Cr13/1Cr18Ni9Ti

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

1Cr18Ni9Ti

4

Disc holder

2Cr13/1Cr18Ni9Ti

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

1Cr18Ni9Ti

5

Disc

2Cr13/1Cr18Ni9Ti

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

1Cr18Ni9Ti

6

Guide sleeve

2Cr13/1Cr18Ni9Ti

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

1Cr18Ni9Ti

7

Bonnet

ZG230-450

ZG230-450

ZG230-450

ZG1Cr18Ni9Ti

8

Spring

50CrVA

Coated Teflon

Coated Teflon

50Cr18Ni9Ti

9

Stem

2Cr13

1Cr18Ni9Ti/1Cr18Ni12Mo2Ti

1Cr18Ni9Ti/1Cr18Ni12Mo2Ti

1Cr18Ni9Ti

10

Adjusting bolt

45

2Cr13

2Cr13

2Cr13

11

Cap

ZG200-400

ZG200-400

ZG200-400

ZG230-450

Sealing surface of material

Depositing satellite

Closed spring loaded full bore type safety valve

Applications

A48Y type are used for the equipment and pipeline of the with steam and air etc medium what the working temperature are less than 350℃. A44Y type are used for the equipment and pipeline of the with air and petroleum gas medium what the working temperature are less than 300℃. Take for extra pressure protection Devices.

Flange connecting dimensions of comply with Standard series first and second of JB/T-94 when the pressure less than 6.4Mpa, comply with Standard series second of JB/T-94 when more than 6.4Mpa.

 

Nominal

Diameter

DN (mm)

Dimensions (mm)

d0

L

L1

DN′

25

15

110

105

32

32

20

130

110

40

40

25

135

120

50

50

32

160

130

65

80

50

175

160

100

100

65

220

200

125

150

100

285

260

200

200

125

350

320

250

Nominal

Pressure

PN (MPa)

Nominal

Diameter

DN (mm)

Dimensions (mm)

L

L1

d0

DN’

 

 

 

1.6

2.5

4.0

25

110

95

15


      32


32

115

100

20

40

40

120

110

25

50

50

135

120

32

65

65

160

135

40


      80


80

170

135

50

100

100

195

175

65

125

150

255

230

100

175

200

300

260

125

250

 

 

6.4

10.0

25

110

105

15

32

32

130

110

20

40

40

135

120

25

50

50

160

130

32

65

80

175

160

50

100

100

220

200

65

125

150

285

260

100

200


Materials for main parts

No.

Name of part

A48Y-C A44Y-C A42Y-C

Materials

A44Y-P    A42Y-P

Materials

A44Y-R    A42Y-R

Materials

1

Body

WCB

ZG1Cr18Ni9Ti

CF8M

2

Nozzle

2Cr13

1Cr18Ni9Ti

316

3

Adjusting ring

ZG2Cr13

ZG1Cr18Ni9Ti

0Cr18Ni12Mo2Ti

4

Disc holder

ZG2Cr13

ZG1Cr18Ni9Ti

316

5

Disc

2Cr13

1Cr18Ni9Ti

316

6

Guide sleeve

2Cr13

1Cr18Ni9Ti

0Cr18Ni12Mo2Ti

7

Bonnet

ZG230-450

ZG230-450

ZG230-450

8

Spring

50CrVA

Coated Teflon

Coated Teflon

9

Stem

2Cr13

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

10

Lever

ZG200-400

ZG200-400

ZG200-400

11

Adjusting bolt

45

2Cr13

2Cr13

12

Cap

ZG200-400

ZG200-400

316

Sealing surface of material

Depositing satellite

 

About Us

Shinjo Company is a high tech enterprise specialized in producing various industrial valves. Shinjo strive on providing full package of industrial valve solution to client, focus on industrial valve manufacture, development, sales and services.

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