NO. 

零件名称 

A21H-C/A21F材料 

A21W-P/A21F-P材料 

A21Y-R材料 

1

管接头 

20

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

2

管接头螺母 

35

2Cr13

1Cr18Ni9Ti

3

阀座 

35

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

4

阀体 

2Cr13

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

5

阀瓣 

2Cr13/2Cr13+PTFE

1Cr18Ni9Ti/1Cr18Ni9Ti+PTFE

1Cr18Ni12Mo2Ti

6

弹簧座 

2Cr13

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

7

弹簧 

50CrVA

50CrVA包覆氟塑料 

50CrVA包覆氟塑料 

8

锁紧螺母 

Q235-A

ZG230-450

1Cr18Ni9Ti

9

弹簧导向垫 

2Cr13

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

10

调节螺母 

Q235-A

2Cr13

1Cr18Ni12Mo2Ti

密封面材料 

"Y"型堆焊Co基硬质合金,"H"型堆焊D507,"W"型为阀门本体 

型号 

公称通径 

do 

d 

Do 

M 

d1 

D1 

L 

L1 

≈H 

KA21-16C
A21H-16C
A21H-40
A21W-16P
A21W-40P
KA21-16P

15

12

15

20

M27×1.5

G¹/2"

30

35

76

66

20

16

20

25

M33×1.5

G³/4"

35

40

87

68

25

18

25

31

M39×1.5

G1"

40

50

100

105

A21Y-64
A21Y-64P
A21Y-100
A21Y-100P

15

10

15

25

M39×1.5

G1"

44

50

100

66

20

10

20

31

M39×1.5

G1"

44

50

100

68

25

12

25

31

M39×1.5

G1"

44

50

100

105

A21W-160/160P

15

8

20

/

M24×2

G1"

44

50

100

261

20

8

25

/

M33×2

G1"

44

50

100

261

25

8

28

/

M36×2

G1"

44

50

100

285