dn

g

b

l

h

a

15

1/2"

15

95

68

125

20

3/4"

20

105

70

125

25

1"

25

115

80

145

32

1 1/4"

32

125

84

145

40

1 1/2"

38

135

93

205

50

2"

50

150

100

205

65

2 1/2"

64

190

142

250

80

3"

76

220

155

250

100

4"

100

零件名称desc-ription of parts

q51f-25,40

q51f-25p,40p

q51f-25r,40r

阀　　体valve body

wcb

zg1cr18ni9ticf8

zg1cr18ni12mo2ti cf8m

球　　体ball body

1cr18ni9ti304

1cr18ni9ti304

1cr18ni12mo2ti316

阀　　杆valve stem

1cr18ni9ti304

1cr18ni9ti304

1cr18ni12mo2ti316

密 封 圈seal ring

聚四氟乙烯polytetrafluoroethylene

填　　料packing

聚四氟乙烯polytetrafluoroethylene