A28H蒸汽安全阀|弹簧全启式安全阀

带手柄弹簧全启式安全阀主要零部件材料 Explanation of materials for main parts

NO.

Name of part

A28H Materials

A28Y-P Materials

A28Y-R8       Materials

1

  Body

HT200

ZG1Cr18Ni9Ti

CF8M

2

  Nozzle

35

ZG1Cr18Ni9Ti

CF8M

3

   Adjusting ring

2Cr13

1Cr18Ni9Ti

316

4

  Disc

2Cr13

1Cr18Ni9Ti

316

5

  Spring

50CrVA

50CrVA Coated Teflon

50CrVA Coated Teflon

6

  Stem

2Cr13

2Cr13

316

7

 Adjusting bolt

45

2Cr13

316

8

   Cap

ZG200-400

ZG200-400

CF8M

Sealing surface of material

D507
Depositing D507

Co
Depositing stellite

10

 Adjusting nut

Q235-A

2Cr13

1Cr18Ni12Mo2Ti

 Sealing surface of material

"Y" Co Depositing stellite, "H" D507 Depositing D507, "W" body

带手柄弹簧全启式安全阀外形尺寸和连接尺寸 Dimensions (mm)

Nominal diameter
DN (mm)

 Dimensions (mm)

do

Rc

G

L

L1

H

15

10

1/2"

3/4"

37

62

189

20

12

3/4"

1"

40

65

196

25

15

1"

11/ "
4 

45

72

277

32

20

11/ "

1

55

85

312

40

25

11/ "

2"

67

100

322

50

32

2"

21/ "
2 

76

112

348

65

40

21/ "

3"

110

135

370

80

50

3"

4"

110

145

410