PRODUCTS
CONTACT US

Qucheng Valve Manufacturing Co., Ltd.

Add: Huilong Road, Hengfeng County Economic Development Park, Shangrao City, Jiangxi, China

Zip code: 334300

Tel: +86-793-5666767

Fax: +86-793-5666768

Marketing Department:

Mei Duanping +86-18279315000

Qiu Zhiqiang +86-18507949570

Kong Xinming +86-13576394097

General manager:

Denny Zhang +86-13905893101

Email: valve@quchenggroup.com

URL: www.quchengvalve.com

Group: www.quchenggroup.com

Your Location: Home >> Products

Threaded Check valve

Product details:
The function of the Check valve is used to prevent the backflow medium pipeline. The Check valve belong to automatic valve class, open-close part by medium flow to open or closed. The Check valve is used only for one-way flow of medium pipeline, prevent medium return, in case of an accident.
Applicable medium: Water, oil, steam, acid medium, etc.
Standard:

Design and manufacture

Length of structure

Pressure-temperature rating

Connecting flange

Test and inspection

GB12236

GB12221

GB9131
JB/T74
HG20604

JB/T74-94
GB9113
HG20592-20635

JB/T9092-1999
GB13927

Pressure test:

Nominal pressure
PN(MPa)

Test pressure (MPa)

Suitable temperature(℃)

Applicable medium

Strength test

Sealing test

WCB

Cr5Mo

1Cr18Ni12Mo2Ti

1Cr18Ni9Ti

1.6

2.4

1.8

≤425

≤550

≤220

≤200

Water, oil, steam, acid medium

2.5

3.8

2.8

4.0

6.0

4.4

6.4

9.6

7.1

10.0

15.0

11.0

-

16.0

24.0

17.6

25.0

37.5

27.5

Materials for main parts And performance:

Part name

Code of Materials

Body

WCB

ZGCr5Mo

ZG1Cr18Ni9Ti

ZG1Cr18Ni12Mo2Ti

Cap

WCB

ZGCr5Mo

ZG1Cr18Ni9Ti

ZG1Cr18Ni12Mo2Ti

Disc

WCB

ZGCr5Mo

ZG1Cr18Ni9Ti

ZG1Cr18Ni12Mo2Ti

Rod

WCB

ZGCr5Mo

ZG1Cr18Ni9Ti

ZG1Cr18Ni12Mo2Ti

Set

25

1Cr18Ni9Ti

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

Axis pin

1Cr17Ni2

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

Sealing ring, gasket

Coated mat

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

Main technical Size

Nominal pressure
PN(MPa)

Nominal diameter
DN(Mm)

Shape Size And connecting Size (Mm)

Weight
(Kg)

L

D

D1

D2

B-F

Z-D

D3

H

1.6

25

160

115

85

65

16-2

4--14

140

130

14

32

180

135

100

78

16-2

4--18

150

140

16

40

200

145

110

85

16-2

4--18

160

150

18

50

230

160

125

100

16-2

4--18

185

160

22

65

290

180

145

120

18-3

4--18

215

177

26

80

310

195

160

135

20-3

8-18

235

187

33

100

3540

215

180

155

20-3

8-18

255

202

39

125

400

245

210

185

22-3

8-18

285

227

57

150

480

280

240

210

24-3

8-23

330

263

80

200

550

335

295

265

26-3

12-23

385

293

95

250

650

405

355

320

30-3

12-25

455

330

175

300

750

460

410

375

30-4

12-25

515

382

260

350

850

520

470

435

34-3

16-25

545

430

360

400

950

580

525

485

36-4

16-30

600

480

496

500

1150

705

650

608

44-4

20-34

730

560

588