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Gate valve
BZ41T-25

Name:BZ41T-25

Details


FLANGE END RISING STEM GATE VALVE


Scope Of Application:

Norminal pressure

2.5MPa

suitable medium

water,oil, steam

test pressure

shell

3.75MPa

seat

2.75MPa


Technical Requirement:

  1. Design, manufacture conforms to BS5150.
  2. Face to face dimension conforms to series 4 of BS EN558-1.
  3. Flange drilled conforms to BS EN1092。


 

SIZE

L

D

D1

D2

B

n-d

f

D0

H

50

215.9

165

125

99

22.2

4-19

3

175

325

65

241.3

185

145

118

25.4

8-19

3

200

362

80

282.5

200

160

132

28.6

8-19

3

254

406

100

304.8

235

190

156

31.8

8-23

3

300

493

125

381

270

220

184

34.9

8-28

3

300

579

150

403.2

300

250

211

36.5

8-28

3

348

644

200

419.1

360

310

274

41.3

12-28

3

400

795

250

457

425

370

330

47.6

12-31

3

457

935

300

502

485

430

398

50.8

16-31

4

457

1059


 

21

Handwheel Nut

steel

BS970 43A

GB700-88 Q235

20

Handwheel

cast iron

BS1452 Gr.220

B9439-88 HT250

19

Yoke Bushing Nut

cast iron

BS1452 Gr.220

GB9439-88 HT250

18

Screw

steel

BS970 43A

GB700-88 Q235

17

Yoke Bushing

cast brass

BS1400 PCB1

GB1176-87 ZCuZn38Mn2Pb2

16

Yoke

cast iron

BS1452 Gr.220

GB9439-88 HT250

15

Nut

steel

BS970 43A

GB700-88 Q235

14

Bolt

steel

BS970 43A

GB700-88 Q235

13

Nut

steel

BS970 43A

GB700-88 Q235

12

Bolt

steel

BS970 43A

GB700-88 Q235

11

Gland Follower

ductile iron

BS2789 Gr420-12

GB1348-88 QT450-10

10

Packing

graphite

 

GB3518-83 LC35-999

9

Bonnet

cast iron

BS1452 Gr.220

GB9439-88 HT250

8

Nut

steel

BS970 43A

GB700-88 Q235

7

Bolt

steel

BS970 43A

GB700-88 Q235

6

Gasket

graphite

 

GB3518-83 LC35-999

5

Stem

brass

BS2874 CZ122

YB146-71 HPb59-1

4

Wedge

cast iron

BS1452 Gr.220

GB9439-88 HT250

3

Seat Ring

cast bronze

BS1400 LG2

GB1176-87 ZCuSn5Pb5Zn5

2

Seat Ring

cast bronze

BS1400 LG2

GB1176-87 ZCuSn5Pb5Zn5

1

Body

cast iron

BS1452 Gr.220

GB9439-88 HT250

NO.

Name of part

Material

British standard

Chinese standard