1.6MPa

Suitable medium

Water

test pressure

shell

2.4MPa

seat

1.76MPa

SIZE

L

D

D1

D2

B

f

n-d

Do

15

90

95

65

46

14

2

4-14

100

20

95

105

75

56

16

2

4-14

100

25

100

115

85

65

16

3

4-14

120

32

105

140

100

76

18

3

4-19

120

40

115

150

110

84

18

3

4-19

140

50

125

165

125

99

20

3

4-19

140

65

145

185

145

118

20

3

4-19

200

80

155

200

160

132

22

3

8-19

200

100

175

220

180

156

24

3

8-19

240

125

200

250

210

184

26

3

8-19

280

150

225

285

240

211

26

3

8-23

315

200

275

340

295

266

30

3

12-23

360

250

325

405

355

319

32

3

12-28

400

300

375

460

410

370

32

4

12-28

400

20

T-bolt

steel

DIN17100 RSt37-2

GB700-88 Q235

19

nut

steel

DIN17100 RSt37-2

GB700-88 Q235

18

screw

steel

DIN17100 RSt37-2

GB700-88 Q235

17

handwheel

cast iron

DIN1691 GG25

GB9439-88 HT250

16

washer

steel

DIN17100 RSt37-2

GB700-88 Q235

15

nut

steel

DIN17100 RSt37-2

GB700-88 Q235

14

stem nut

cast brass

GB1176-87 ZCuZn38Mn2Pb2

13

stem

stainless steel

DIN17440 X20Cr13

GB1220 2Cr13

12

gland follower

ductile iron

DIN1693 GGG50

GB1348-88 QT500-7

11

packing

graphite

GB3518-83 LC35-999

10

bonnet

cast iron

DIN1691 GG25

GB9439-88 HT250

9

nut

steel

DIN17100 RSt37-2

GB700-88 Q235

8

bolt

steel

DIN17100 RSt37-2

GB700-88 Q235

7

gasket

graphite

GB3518-83 LC35-999

6

screw

steel

DIN17100 RSt37-2

GB700-88 Q235

5

steel ball

steel

DIN17230 100Cr6

GB/T18254 GCr15

4

disc

cast iron

DIN1691 GG25

GB9439-88 HT250

3

disc seat ring

stainless steel

DIN17440 X20Cr13

GB1220-92 2Cr13

2

body seat ring

stainless steel

DIN17440 X20Cr13

GB1220-92 2Cr13

1

body

cast iron

DIN1691 GG25

GB9439-88 HT250

NO.

Name of part

material

Germany standard

Chinese standard