Measurement

size

a

c

d

T

f

L

x-n

D

≈h1 Non-rising stem

≈h1Rising stem

40

40

110

150

19

3

165

4 -Φ19

180

275

320

50

50

125

165

19

3

178

4 -Φ19

180

280

330

65

65

145

185

19

3

190

4 -Φ19

180

300

350

80

80

160

200

19

3

203

8 -Φ19

204

335

440

100

100

180

220

19

3

229

8 -Φ19

240

341

480

125

125

210

250

19

3

254

8 -Φ19

240

430

560

150

150

240

285

19

3

267

8 -Φ23

280

485

640

200

200

295

340

20

3

292

12-Φ23

520

580

810

250

250

355

405

22

3

330

12-Φ28

560

680

950

300

300

410

460

24.5

4

356

12-Φ28

450

785

1080

350

350

470

520

26.5

4

381

16-Φ28

500

880

400

400

525

580

28

4

406

16-Φ31

560

990

Test

Executed according to BS5165:1986

Sealing test pressure is 1.76MPa

Strength test pressure is 2.4NPa

Working pressure is 1.6MPa

Material

No

Spare part name

Material

1

  Body

  Ductile iron

2

  Wedge

  Ductile iron + EPDM OR NBR

3

  Bonnet

  Ductile iron

4

  Stem

  Stainless steel  2Cr13 , 1Cr13

5

  Stem nut

  Brass

6

  Bonnet, gland

  Ductile iron

7

  Handwheel

  Ductile iron

Components

1

  Body

  Cast iron or ductile iron

2

  Disc

  Cast iron or Ductile iron

3

  Seat

  Brass/Stainless steel

4

  Stem

  Stainless steel

5

  Bonnet

  Cast iron or Ductile iron

6

  Hand wheel

  Cast iron or Ductile iron

Application

1

  Face to face is according to BS5163:1986

2

  Flange drilled is according to BS4504 & BS10 table E or D

Test

   Working pressure

PN16

   Test pressure Shell

15bars

24bars

   Seat

11bars

17.6bars