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300X Non-Surge Check Valve, Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT450)
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300X Non-Surge Check Valve


300X Non-Surge Check Valve closes automatically in case of prevent mediums back-flow. The Non-Surge Check Valve allows flow when inlet pressure in higher than the outlet pressure.

The valve has the principal of slow-open, quick-close and slow-close into one to prevent water hammering when the pump starts or closes. Non-Surge Check Valve opens and closes at controlled speed to ensure smooth flow.

Used on the pump outlet of a water supply system to prevent mediums back-flow, water hammer and water shock. It has three functions as an electric valve, check valve and water hammer remover.

It is capable of improving the safety and reliability of the water supply system effectively through integrating the technical principle of slow-open, speed valve, slow-close, and removing water hammer and preventing of both pump-starting and pump-stopping water hammer.

The gate can carry out open-close automatically upon the operation rules of the water pump just by operating the pump to open or close electrically. Hydraulic Check Valves features by the big flow and small pressure loss, reliable sealing performance, easy installation, debugging and maintenance and long duration.

Notes:
DN 450 Diaphragm type valve
DN 500 piston type valve

Materials

Materials of 300X Non-Surge Check Valve

Serial No.

Part

Material

1

Body

Cast Iron (GG25, HT200) / Ductile Iron   (GG40, QT)

2

Seat

410 S.S. / SS 304 / SS 316

3

Stem

410 S.S. / SS 304 / SS 316

4

O-ring washer

Cast Iron

5

O-ring

NBR

6

O-ring

NBR

7

Disc

Cast Iron (GG25, HT200) / Ductile Iron   (GG40, QT)

8

Diaphragm

Rubber

9

Diaphragm washer

Cast Iron (GG25, HT200) / Ductile Iron   (GG40, QT)

10

Nut

Bronze

11

Spring

Spring steel

12

Cover

Cast Iron (GG25, HT200) / Ductile Iron   (GG40, QT)

13

Ball valve

Bronze

14

Ball valve

Bronze

15

Pressure show


16

Hang ring

Steel

17

Pilot socket

Pilot socket

18

Single way valve

Bronze

19

Needle valve

Bronze

20

Stud

Steel

21

Nut

Steel

Dimensions

Materials of 300X Non-Surge Check Valve

DN mm

20

25

32

40

50

65

80

100

125

150

200

250

300

350

400

450

500

600

700

800

L

180

180

180

203

203

235

285

360

400

455

585

650

800

860

915

980

1075

1230

1300

1450

PN10

D

105

115

135

145

160

180

195

215

245

280

335

390

440

500

565

615

670

780

895

1010

D1

75

85

100

110

125

145

160

180

210

240

295

350

400

460

515

565

620

725

840

950

PN16

D

105

115

135

145

160

180

195

215

245

280

335

405

460

520

580

640

705

840

910

1020

D1

75

85

100

110

125

145

160

180

210

240

295

355

410

470

525

585

650

770

840

950

PN25

D

105

110

135

145

160

180

195

230

270

300

360

425

485

550

610

660

730

840

955

1070

D1

75

85

100

110

125

145

160

190

220

250

310

370

430

490

550

600

660

770

875

990

H

172

172

172

265

265

310

350

460

520

570

695

780

905

1025

1080

1030

1135

1270

1460

1640

H1

106

106

106

210

210

215

245

305

365

415

510

560

658

696

735

610

665

725

865

925

Installation

Installation of 300X Non-Surge Check Valve

 


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Shinjo Company is a high tech enterprise specialized in producing various industrial valves. Shinjo strive on providing full package of industrial valve solution to client, focus on industrial valve manufacture, development, sales and services.

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