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Xiamen Kemus Valve Co.,Ltd
Add: 5 floor, Zhimingxing Technology Building No 18, Honglian West Road, Siming District Xiamen China
Tel:+86-592-7103069
Mob:+8618359108305
E-mail: sales1@kemus-valve.com

Gate Valve

Knife Gate Valve

Knife Gate Valve

Products Name: Knife Gate Valve Valve Co., Ltd. produced good knife valve widely used in coal, slag slurry, waste water, mud, dirt, pulp, ash slurry and so on. Knife gate valve, also known as knife gate valve, knife-type slurry valve, its opening and closing pieces is the gate, the direction of......

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Products Name: Knife Gate Valve

Valve Co., Ltd. produced good knife valve widely used in coal, slag slurry, waste water, mud, dirt, pulp, ash slurry and so on. Knife gate valve, also known as knife gate valve, knife-type slurry valve, its opening and closing pieces is the gate, the direction of movement of the gate and the fluid perpendicular to the direction, by cutting the fiber material knife-shaped gate to cut off the media, Two sealing surfaces, the most commonly used gate valve form two wedge sealing surface, wedge angle varies with the valve parameters, usually 50, wedge gate valve gate can be made as a whole, called the rigid gate ; Can also be made to produce a small amount of deformation of the gate, to improve its technology to make up for sealing surface angle in the process of deviation, this gate is called a flexible gate. The valve body does not actually exist in the chamber. The gate raises and lowers in the side guide groove and is pressed against the valve seat by the lugs at the bottom. To achieve high medium tightness, the O-ring seat can be used Two-way seal. Knife gate valve has a smaller installation space, low working pressure, easy accumulation of debris, the price is lower.

Product Usage of Knife Gate Valve

Valve Co., Ltd. produced good knife valve widely used in coal, slag slurry, waste water, mud, dirt, pulp, ash slurry and so on. Knife gate valve, also known as knife gate valve, knife-type slurry valve, its opening and closing pieces is the gate, the direction of movement of the gate and the fluid perpendicular to the direction, by cutting the fiber material knife-shaped gate to cut off the media, Two sealing surfaces, the most commonly used gate valve form two wedge sealing surface, wedge angle varies with the valve parameters, usually 50, wedge gate valve gate can be made as a whole, called the rigid gate ; Can also be made to produce a small amount of deformation of the gate, to improve its technology to make up for sealing surface angle in the process of deviation, this gate is called a flexible gate. The valve body does not actually exist in the chamber. The gate raises and lowers in the side guide groove and is pressed against the valve seat by the lugs at the bottom. To achieve high medium tightness, the O-ring seat can be used Two-way seal. Knife gate valve has a smaller installation space, low working pressure, easy accumulation of debris, the price is lower.

Drive method of Knife Gate Valve

Manual, sprocket, electric, pneumatic, hydraulic, bevel gear, electro-hydraulic and pneumatic drive and other driving methods. Knife gate valve shape: bright rod, dark rod two. Knife gate valve material: cast iron, cast steel, carbon steel, stainless steel, such as fluorine lining. Knife gate valve seal: hard seal, soft seal, single seal, double seal and other material seal.

Slim knife gate valve with its small size, small flow resistance, light weight, easy installation, easy removal and other advantages of the complete settlement of the ordinary gate valve, ball valve, globe valve, globe valve, butterfly valve and other types of valve flow resistance , Heavy weight, difficult installation, large area and other difficult problems. After the knife gate valve appears, a large number of general-purpose cut-off valves and regulating valves have been replaced. Today, the world's largest amount of knife gate valve is the United States and Japan.

Product Performance

1. Valve control can be done locally and remote control, but also in accordance with the requirements of users to achieve remote location display and remote control.

2. Light weight: The body is made of carbon steel, weight loss of about 20% -30% than the traditional gate valve, easy installation and maintenance.

3. The use of the valve can improve the closure of the pipeline sealing performance, minimize leakage, to improve production efficiency and protect the environment will play a positive role in promoting.

4. Sealing surface using high wear-resistant, corrosion-resistant ceramic materials, the use of mosaic technology, high corrosion resistance, good wear resistance, which makes the valve life is long, the price of ordinary valve to enhance 10 times.

 

Features of Knife Gate Valve

1. improved gate seal surface, the surface can be scraped sticky adhesive, automatic cleaning debris.

2. stainless steel gate to prevent leakage caused by corrosion seal.

3. hard gold seal face to ensure sealing wear resistance and requirements.

4. the valve body sealing surface no groove, does not produce accretion, can guarantee open and flexible.

5. short structure length, can save raw materials, installation space also effectively support the pipe strength.

6. science on the packing seal design, so that the seal is safe and effective, durable.

7. triangular bracket to save raw materials, to ensure the mechanical properties needed.

8. the guide block on the valve body to make the correct gate movement, four squeeze blocks to ensure effective gate seal.

9. Body stiffener design to improve the strength of the body.

10. stainless steel stem durable, studs to hoist more quickly.

11. optional drive mechanism.

More than 12,150 caliber, fully enclosed structure, more effective and prevent leakage.

13. Viton sealing surface to achieve sealing effect, improve the use of temperature.

14. the rubber sealing surface directly vulcanized in the valve body, will not fall off.

Installation and use instructions of Knife Gate Valve

1. Knife gate valve before installation must check the valve cavity and sealing surface and other parts, do not allow dirt or grit attached;

2. The bolts of connecting parts, require uniform tightening;

3. Check the packing parts require compression, both to ensure the packing seal, but also to ensure that the gate open flexible;

4. Before installing the valve, the user must check the valve model, connection size and attention to the flow of the medium to ensure consistency with the requirements of the valve.

5. When installing the valve, users must reserve the necessary space for valve actuation;

6. Drive wiring according to the wiring diagram;

7. Knife valve must be regularly maintained, shall not be free to crash and squeeze, so as not to affect the seal.

Use and maintenance

1. double gate valve should be mounted vertically (ie stem in a vertical position, the hand wheel at the top).

3. with bypass valve gate valve should be opened before opening the bypass valve (to balance the pressure difference between import and export and reduce the opening force).

4. with the gear valve, according to the instructions of the product installation instructions.

5. if the valve is often used switch, lubrication at least once a month.

The main shape and connection dimensions of Knife Gate Valve

Nominal    diameter

The main dimensions and connection dimensions

L

D

D1

D2

b

Z-d

H

D0

PZ73X/H-10C

50

50

160

125

100

16-3

4-Φ18

285

180

65

50

180

145

120

18-3

4-Φ18

298

180

80

50

195

160

135

20-3

8-Φ18

315

220

100

50

215

180

155

20-3

8-Φ18

365

220

125

50

245

210

185

22-3

8-Φ18

400

230

150

60

280

240

210

24-3

8-Φ23

475

280

200

60

335

295

265

26-3

12-Φ23

540

360

250

70

405

355

320

30-3

12-Φ25

630

360

300

80

460

410

375

30-3

12-Φ25

780

400

350

90

520

470

435

34-4

16-Φ25

885

400

400

100

580

525

485

36-4

16-Φ30

990

400

450

120

640

585

545

40-4

20-Φ30

1100

530

500

130

705

650

608

44-4

20-Φ34

1200

530

600

140

840

770

718

48-5

20-Φ36

1450

600

700

165

910

840

788

50-5

24-Φ41

1700

600

800

190

1020

950

898

52-5

24-Φ41

2000

680

900

203

1120

1050

998

54-5

28-Φ41

2300

680

PZ73X/H-16C

50

50

160

125

100

20-3

4-Φ18

285

180

65

50

180

145

120

22-3

8-Φ18

298

180

80

50

195

160

135

22-3

8-Φ18

315

220

100

50

230

190

160

24-3

8-Φ23

365

220

125

50

270

220

188

28-3

8-Φ25

400

230

150

60

300

250

218

30-3

8-Φ25

475

280

200

60

360

310

278

34-3

12-Φ25

540

360

250

70

425

370

332

36-3

12-Φ30

630

360

300

80

485

430

390

40-4

16-Φ30

780

400

350

90

550

490

448

44-4

16-Φ34

885

400

400

100

610

550

505

48-4

16-Φ34

990

400

450

120

640

585

545

40-4

20-Φ30

1100

530

500

130

705

650

608

44-4

20-Φ34

1200

530

600

140

840

770

718

48-5

20-Φ36

1450

600

700

165

910

840

788

50-5

24-Φ41

1700

600

800

190

1020

950

898

52-5

24-Φ41

2000

680

900

203

1120

1050

998

54-5

28-Φ41

2300

680

Structure Picture Of Knife Gate Valve

image001_副本.jpg

Packing & Delivery

FAQ

Q. what is your payment term?

A: T/T 30% down payment, balance to be paid before shipment. or L/C.

Q: what is your main market?

A:Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe,  North America, South America,

Q: Can I get samples from your factory?

A: Yes, Samples can be provided.

Q: If products have some quality problem, how would you deal with?

A: We will responsible for all the quality problems.