1.6MPa

suitable medium

water

test pressure

shell

2.4MPa

seat

1.76MPa

test time

DN50-150

60s

DN>150

120s

temperature

≤80°c

DN

L

D

D1

D2

b

f

n-d

Do

40

140

150

110

84

18

3

4-19

160

50

150

165

125

102

19

3

4-19

160

65

170

185

145

122

19

3

4-19

160

80

180

200

160

132

19

3

8-19

200

100

190

220

180

156

19

3

8-19

200

125

200

250

210

184

19

3

8-19

250

150

210

285

240

211

19

3

8-23

320

200

230

340

295

266

20

3

12-23

320

250

250

405

355

319

22

3

12-28

320

300

270

460

410

370

24.5

4

12-28

360

350

290

520

470

429

26.5

4

16-28

400

310

580

525

480

28

4

16-31

450

330

640

585

548

30

4

20-31

500

350

715

650

609

31.5

4

20-34

600

390

840

770

720

36

5

20-37

15

bolt

steel

DIN17100 RSt37-2

GB700-88 Q235

14

handwheel

ductile iron

DIN1693 GGG50

GB1348-88 QT500-7

13

washer

steel

DIN17100 RSt37-2

GB700-88 Q235

12

stuffing box

cast brass

DIN17656 G-CuZn37Pb

GB1176-87 ZCuZn40Pb2

11

bonnet

ductile iron

DIN1693 GGG50

GB1348-88 QT500-7

10

O-ring

NBR

NBR

9

0-ring

NBR

NBR

8

gasket

Teflon

HG/T2902

7

screws

steel

DIN C30

GB699-88 30

6

flange gasket

NBR

NBR

5

stem

stainless steel

DIN17440 X20Cr13

GB1220-92 2Cr13

4

stem nut

cast brass

DIN17656 G-CuZn37Pb

GB1176-87 ZCuZn40Pb2

3

wedge

NBR

NBR

2

wedge frame

ductile iron

DIN1693 GGG50

GB1348-88 QT500-7

1

body

ductile iron

DIN1693 GGG50

GB1348-88 QT500-7

NO.

Name of part

material

Germany standard

Chinese standard