1.6MPa

shell pressure

2.4MPa

seat pressure

1.76MPa

suitable medium

water

temperature

＜ 100°C

SIZE

L

D

D1

D2

B

f

n-d

50

178

165

125

99

19

3

4-19

65

190

185

145

118

19

3

4-19

80

203

200

160

132

19

3

8-19

100

229

220

180

156

19

3

8-19

125

254

250

210

184

19

3

8-19

150

267

285

240

211

19

3

8-23

200

292

340

295

266

20

3

12-23

250

330

405

355

319

22

3

12-28

300

356

460

410

370

24.5

4

12-28

350

381

520

470

429

26.5

4

16-28

400

406

580

525

480

28

4

16-31

450

432

640

585

548

30

4

20-31

500

457

715

650

609

31.5

4

20-34

600

508

840

770

720

36

5

20-37

19

spanner cap

duictie iron

BS2789 Gr500-7

GB1348 QT450-10

18

bolt

steel

BS970 43A

GB700-88 Q235

17

gland nut

cast bronze

BS1400 LG2

GB1176-87 ZCuSn5Pb5Zn5

16

anti-dust ring

EPDM

BS2494 Type W

15

screws

steel

BS970 43A

GB699-88 35

14

o-ring

EPDM

BS2494 Type W

13

O-ring

EPDM

BS2494 Type W

12

gland follower

ductile iron

BS2789 Gr500-7

GB1348 QT500-7

11

O-ring

EPDM

BS2494 Type W

10

washer

Teflon

HG/T2902

9

O-ring

EPDM

BS2494 Type W

8

bonnet

ductile iron

BS2789 Gr500-7

GB1348 QT500-7

7

screws

steel

BS970 43A

GB699-88 35

6

gasket

EPDM

BS2494 Type W

5

stem

stainless steel

BS970 410S21

GB1220-92 1Cr13

4

stem nut

cast bronze

BS1400 AB1

GB1176-87 ZCuAL10Fe3Mn2

3

wedge frame

ductile iron

BS2789 Gr500-7

GB1348 QT500-7

2

wedge

EPDM

BS2494 Type W

1

body

ductile iron

BS2789 Gr500-7

GB1348 QT500-7

NO.

Name of part

material

British standard

Chinese standard