The serial number

Part name

Gray cast iron

Cast steel

Acid-proof stainless steel casting

Ultra-low carbon stainless acid-resistant steel casting

Z

C

P

R

PL

RL

1

Body/bonnet

HT250

WCB

CF8

CF8M

CF3

CF3M

2

The sphere/stem

25

2Cr13

1Cr18Ni9

1Cr18Ni12Mo2Ti

00Cr18Ni10

00Cr17Ni14Mo2

3

The lining/seat

PCTEF(F3),FEP(F46),PFA(soluble F4),PP,PO

4

The packing gland

WCB

CF8

CF8M

CF3

CF3M

5

Packing

PTFE(F4)

PTFE(F4)

PTFE(F4)

6

Eyelet bolt

35

1Cr17Ni2

1Cr17Ni2

7

Stem nut

ZCuAl10Fe3

ZCuAl10Fe3

ZCuAl10Fe3

8

The bolt

35

1Cr17Ni2

1Cr18Ni9Ti

9

Nut

45

0Cr18Ni9

0Cr18Ni9

10

The handle

WCB

WCB

WCB

Nominal diameter

Main dimensions

Reference

DN（mm)

NPS
(inch)

L

D

D1

D2

f

b

Z-φd

D0

H

H1

W(kg)

PN1.0MPa

15

1/2

140

95

65

45

2

14

4-φ14

120

110

125

6

20

3/4

152

105

75

55

2

16

4-φ14

140

120

140

7

25

1

165

115

85

65

2

16

4-φ14

140

132

155

8

32

5/4

178

135

100

78

2

18

4-φ18

160

156

185

11

40

3/2

240

145

110

85

3

18

4-φ18

200

167

210

20

50

2

250

160

125

100

3

20

4-φ18

200

358

410

28

65

5/2

270

180

145

120

3

20

4-φ18

250

375

440

32

80

3

280

195

160

135

3

22

4-φ18

250

435

515

45

100

4

300

215

180

155

3

22

8-φ18

280

500

600

60

125

5

325

245

210

185

3

24

8-φ18

280

615

740

110

150

6

350

280

240

210

3

24

8-φ23

400

675

825

120

200

8

400

335

295

265

3

26

8-φ23

400

820

1020

150

250

10

450

390

350

320

3

28

12-φ23

450

970

1220

240

300

12

500

440

400

368

4

28

12-φ23

500

1145

1445

340

PN1.6MPa

15

1/2

140

95

65

45

2

14

4-φ14

120

110

130

7

20

3/4

152

105

75

55

2

16

4-φ14

140

120

140

8

25

1

165

115

85

65

2

16

4-φ14

140

135

160

9

32

5/4

178

135

100

78

2

18

4-φ18

160

160

190

13

40

3/2

240

145

110

85

3

18

4-φ18

200

170

220

25

50

2

250

160

125

100

3

20

4-φ18

200

360

410

32

65

5/2

270

180

145

120

3

20

4-φ18

250

380

440

38

80

3

280

195

160

135

3

22

8-φ18

250

440

520

50

100

4

300

215

180

155

3

24

8-φ18

280

500

600

68

125

5

325

245

210

185

3

26

8-φ28

280

615

740

125

150

6

350

280

240

210

3

28

8-φ23

400

680

830

170

200

8

400

335

295

265

3

30

12-φ23

400

820

1020

210

250

10

450

405

355

320

3

32

12-φ25

450

980

1230

260

300

12

500

460

410

375

4

34

12-φ25

500

1150

1450

480