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Shanghai Oil Seal Co.,Ltd.

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CYZ40H, CYZ41H, CYZ40Y, CYZ41Y Differential pressure oil seal gate valve 150 ~ 900Lb

China CYZ40H, CYZ41H, CYZ40Y, CYZ41Y Differential pressure oil seal gate valve 150 ~ 900Lb supplier

Large Image :  CYZ40H, CYZ41H, CYZ40Y, CYZ41Y Differential pressure oil seal gate valve 150 ~ 900Lb

Product Details:

Place of Origin: China
Brand Name: OEM
Model Number: CYZ41H

Payment & Shipping Terms:

Minimum Order Quantity: 1 set
Packaging Details: Wooden box
Delivery Time: Within 15days
Payment Terms: T/T
Supply Ability: 1000pcs / month
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Detailed Product Description

CYZ40H, CYZ41H, CYZ40Y, CYZ41Y Differential pressure oil seal gate valve 150 ~ 900Lb

 

Differential pressure oil seal gate valve’s structural principle: it is generated from current wedge elastic gate valve; an auto pressure oil seal and lubrication structure is installed on each wedge gate valve body’s seat and composed of piston and valve seat sliding along oil cylinder’s surface, and it contains  seal oil. When valve is closed, its cavity is filled with medium pressure, and valve back, also valve downstream end generates a differential pressure with middle cavity; this differential pressure pushes piston move downward to compress seal cream in oil cylinder to get through channel to form a seal oil film and achieve seal.

 

Characteristics
1. Differential pressure oil seal elastic gate valve is new in structure, light and easy in operation; it is convenient to be free from renewing filler to achieve reliable seal.
2. Compared with old-fashioned wedge gate valve, the key is to change mechanical seal into oil seal; the first seal is elastic disc’s hard seal, and the second seal is cream seal, so it is double seal; in valve it is equipped with auto injection of seal cream, and outer valve with compensation device of seal cream injector.

 

PN MPa

Product Type 

1.6~16.0MPa  150~900Lb

CYZ40H, CYZ41H, CYZ40Y, CYZ41Y, KCYZ40Y, KCYZ41Y

 

Technical Parameters

Pressure Grade

Normal temperature 

pressure test (MPa)

Applicable Temperature (℃)

Medium 

Casing

Seal

Back Seal

-29-121,  or as required 

Sulfur Resistant 

Type

Basic 

Type

PN(MPa)

1.6

2.4

1.76

1.76

Medium containing H2S and CO2>

500Mg/m3

Petroleum,  Natural Gas,  

Water and so on

2.5

3.75

2.75

2.75

4.0

6.0

4.4

4.4

6.4

9.6

7.04

7.04

10.0

15.0

11.0

11.0

16.0

24.0

17.6

17.6

Class (Lb)

150

2.93

2.07

2.07

300

7.58

5.52

5.52

400

10.0

7.31

7.31

600

15.0

11.03

11.03

900

22.4

16.54

16.54

 

Main Part Materials

Name 

Body,  Cover 

Valve Disc

Seat

Spindle 

Spindle 

Screw

Seal 

Face 

Material 

Basic Type 

WCB

WCB+13Cr/STL

Alloy Steel 

+13Cr

Alloy Steel 

Aluminium 

Bronze

PTFE

Sulfur Resistant Type 

WCB Sulfur-Resistant Treatment 

WCB+STL

Alloy Steel

 +STL

Steel 318

Reinforced 

PTFE

 

Main Part Materials

Main External Dimensions and Weight

PN(MPa)

Dimensions (mm)

DN

50

65

80

100

125

150

200

250

300

350

400

1.6

L

250

265

280

300

325

350

400

450

500

550

600

H

425

445

540

620

740

820

1050

1245

1475

1755

1930

Kg

28

34

45

64

75

106

151

211

302

377

578

2.5

L

250

265

280

300

325

350

400

450

500

550

600

H

425

445

540

620

740

810

1080

1282

1500

1820

2015

D0

240

240

280

320

360

400

450

500

500

560

560

Kg

34

38

51

74

98

117

196

226

354

490

558

4.0

L

250

280

310

350

400

450

550

650

750

 

 

H

435

445

550

670

775

895

1100

1332

1530

 

 

D0

280

280

320

360

400

400

450

500

560

 

 

Kg

38

45

66

89

117

147

242

340

453

 

 

6.4

L

250

280

310

350

400

450

550

650

750

 

 

H

438

475

555

670

772

895

1137

1332

1530

 

 

D0

280

280

320

360

400

450

560

560

600

 

 

Kg

45

53

77

112

158

223

317

377

410

 

 

10.0

L

250

280

310

350

 

450

550

650

750

 

 

H

510

540

600

690

 

985

1085

1215

1365

 

 

D0

280

280

320

360

 

450

560

600

650

 

 

Kg

54

64

93

135

 

268

381

452

493

 

 

16.0

L

300

340

390

450

 

600

750

850

950

 

 

H

467

660

680

785

 

985

1190

1395

1595

 

 

D0

320

360

360

450

 

500

560

600

650

 

 

Kg

72

85

121

176

 

350

490

580

635

 

 

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