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Mech Wholesale low pressure check valve Suppliers fire protection

Mech Wholesale low pressure check valve Suppliers fire protection

Connection Ends
Flange to BS EN 1092-2:1997
Temperature Range
0℃- 80℃
Coating
Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550
Working Pressure
PN10/PN16
Price
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Statement


Gate valves serve to cut the medium flow in the piping system, widely used in the field of potable water, water supply and drainage, sewage disposal, irrigation, air conditioning, fire protection as well as chemical and energy industry.

Features


Material:Ductile Iron EN-GJS-450-10

Body, bonnet, wedge, handwheel and operating nut are all produced in ductile iron material which provides guarantee for high strength and good corrosion resistance.


Triple O-ring Stem Seals

The lower O-ring isolates the stem thrust collar bearing area from the waterway. The upper two O-rings can easily be replaced in the line while the valve is under pressure in the open position.


Stainless Steel Stem, Brass Thrust Collar and Bronze Wedge Nut

This life-tested MEIDE design has repeatedly proven its superior strength and abrasive resistance.


Fusion Bonded Epoxy Coating

Fusion bonded epoxy coating in accordance with ANSI/AWWA C550 for both interior and exterior surface which provides reliable corrosion resistance.


Long Service Life with Resilient Seat Cycling Test 1,000 times

The Valve has been subjected to 1,000 cycles of operation at a maximum rate of 6 cycles of operation per minute from fully closed to fully open and from fully open to fully closed positions under cycled hydrostatic pressure.




MATERIAL SPECIFICATION



Mech Wholesale low pressure check valve Suppliers fire protection-1
Z41X


• Connection Ends: Flange to BS EN 1092-2:1997

• Working  Pressure: PN10/PN16

• Temperature Range: 0℃- 80℃

• Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550



Part No.

Part

Standard Specification

Options

1

Valve Body

EN-GJS-450-10

 

2

Resilient Wedge Disc

EN-GJS-450-10+EPDM

 

3

Stem

SS420

SS304,SS316,Al-bronze

4

Bonnet Gasket

EPDM

NBR

5

Bonnet

EN-GJS-450-10

 

6

Washer

Brass HPb59-1

 

7

Yoke

EN-GJS-450-10

 

8

Stem nut

Brass HPb59-1

 

9

Gland flange

EN-GJS-450-10

 

10

Wedge nut

Brass HPb59-1

 

11

Handwheel

EN-GJS-450-10

Pressed Steel

12

Washer

Brass HPb59-1

 

13

Nut

Carbon Steel Zinc Plated

SS304,SS16

14

Stud

Carbon Steel Zinc Plated

SS304,SS16

15

Flat Washer

Carbon Steel Zinc Plated

SS304,SS16

16

Nut

Carbon Steel Zinc Plated

SS304,SS16

17

O-Ring

NBR

EPDM

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.


Mech Wholesale low pressure check valve Suppliers fire protection-2


DN

Dimensions(mm)

Inch

mm

PN

L

H1(Close)

H2(Open)

D

D1

d

C

T

n-φL

2"

50

10/16

178

318

370

165

125

99

19

3

4-Φ19

2.5"

65

10/16

190

343

410

185

145

118

19

3

4-Φ19

3"

80

10/16

203

386

468

200

160

132

19

3

8-Φ19

4"

100

10/16

229

436

538

220

180

156

19

3

8-Φ19

5"

125

10/16

254

516

640

250

210

184

19

3

8-Φ19

6"

150

10/16

267

563

713

285

240

211

19

3

8-Φ23

8"

200

10

292

749

950

340

295

266

20

 3

8-Φ23

 

 

16

 

 

 

 

 

 

 

 

12-Φ23

 10"

 250

10

330

 904

1158

405

350

319

22

 3

12-Φ23

 

 

16

 

 

 

 

355

 

 

 

12-Φ28

 12"

 300

10

356

1030

1335

460

400

370

24.5

4

12-Φ23

 

 

16

 

 

 

 

410

 

 

 

12-Φ28

14"

350

10

381

1210

1560

520

460

429

26.5

4

16-Φ23

 

 

16

 

 

 

 

470

 

 

 

16-Φ28

16"

400

10

406

1280

1680

580

515

480

28

 4

16-Φ28

 

 

16

 

 

 

 

525

 

 

 

16-Φ31

18"

450

10

432

1760

2210

640

565

530

30

 4

20-Φ28

 

 

16

 

 

 

 

585

548

 

 

20-Φ31

 20"

500

10

457

1780

2280

715

620

582

31.5

4

20-Φ28

 

 

16

 

 

 

 

650

609

 

 

20-Φ34

24"

600

10

508

1950

2550

840

725

682

36

 5

20-Φ31

 

 

16

 

 

 

 

770

720

 

 

20-Φ37


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