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Discharge valve

Product Overview

Discharge valve structure is characterized by the left and right valve body separate, the valve body is sandwiched between the two seats, the valve body can be replaced by disconnecting the bolts of the two bodies;
The valve body cavity is equipped with erosion and corrosion resistant protection board, which can protect the valve body from media erosion and corrosion when the valve is opened. The special surface treatment is carried out on the whole to make the surface hardness reach HRC60-62.It has excellent functions of high wear resistance and corrosion resistance.The sealing surface of the valve seat and the disc seal are surfacing with special hard alloy or sprayed tungsten carbide with high hardness (greater than HRC70). Spherical sealing is adopted between the sealing pairs to make the sealing surface be in line contact.Ensure the reliability of seal.And prevent scarring.Valve with upper seal structure, fully open to protect packing.The valve is equipped with anti-turning mechanism.Make sure the stem moves in a straight line and does not turn when open and closed.Valve drive mode: manual, electric, pneumatic, gear transmission.The valve is mainly used in alumina, mining, metallurgy and other industries with particulate slurry.

Structural characteristics

Discharge valve is a kind of wear-resistant, pressure resistant, erosion resistant, simple structure and can prevent scab. It can meet the requirements of severe working conditions such as conveying granular and viscous media. The valve has small flow resistance and sealing is not easy to leak. Therefore, it is widely used in alumina, chemical fertilizer, mining, metallurgy and other industries, In this paper, the characteristics and application of Y-type slurry valve are introduced in detail based on several common Y-type slurry valves used in alumina production.

Execution standard

Design specification :GB/T12235, ASME B16.34
Structure length: GB/T12221
Connection flange: GB/T9113.1, HG/T20592, HG/T20615, ASME B16.5
Test and inspection: GB/T9092, API 598

Performance parameter

Nominal diameter: DN50~350mm
Nominal pressure: PN2 ~ 10MPa
Applicable temperature: ≤425℃
Suitable medium: alkaline alumina slurry, ore slurry, fly ash, etc
Driving mode: manual, gear, electric

Product Dimensions

DN(mm)

NPS(in)

Driving mode

L

D

D1

D2

B

Z-Φ

f

Do

H

Driving device

JS45Y

50

2

Manual

230

150

120.5

92

16

4-18

2

250

307

-

80

3

310

190

152.5

127

19.5

4-18

2

250

386

-

100

4

350

230

190.5

157.5

24

8-18

2

250

448

-

125

5

400

255

216

186

24

8-22

2

320

519

-

150

6

480

280

241.5

216

25.5

8-22

2

360

600

-

200

8

Tooth movement

600

345

298.5

270

29

8-22

2

450

795

BA-1

250

10

730

405

362

324

30.5

12-26

2

600

880

BA-1

300

12

850

485

432

381

32

12-26

2

600

935

BA-1

350

14

980

535

476

413

35

12-30

2

600

1088

BA-2

200

8

Electric

600

345

298.5

270

29

8-22

2

305

995

SMC-00

250

10

730

405

362

324

30.5

12-26

2

305

1045

SMC-00

300

12

850

485

432

381

32

12-26

2

305

1105

SMC-0

350

14

980

535

476

413

35

12-30

2

305

1250

SMC-0

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