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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

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Jacketed heat preservation Check valve

Technical Parameters: 
Fluid medium: water, gas, oil, asphalt, easy to crystallize the media. 
Valve clack Materials: Stainless steel, alloy steel 
Valve rod Materials: Stainless steel. 
body appearance: matt purple orchid oil knee [effective rust] 
body Materials: cast iron, Cast steel, Stainless steel, forged steel, chrome molybdenum steel, chromium molybdenum vanadium steel, brass, Seal face Connection: Flange, welding, thread, wafer. 
Transmission: Automatic, Applicable medium: water, oil, gas, steam, acids. 
Manufacturing Standard: GB, American standard, Japanese standard, German standard. 
Features: 
Jacketed heat preservation Check valve mainly used in petroleum, chemical, metallurgical, pharmaceutical and other systems to prevent the line of medium back to delivery under Normal temperature high viscosity media will be solidified. The Series Check valve are automatic valves, Jacketed heat preservation Check valve jacket welding between the two Valve Flange, Valve on the side or bottom of the connector is provided with a jacket. With the addition of the jacket, such Valve connecting flange size than the same specifications of the ordinary Check valve Connecting flange freshman two specifications, but Length of structure with the same specifications Valve same jacket can circulate freely steam, thermal oil or other hot jacketed heat preservation media, be sure viscous medium can smoothly pass Valve. 
Features and advantages: 
1. Fluid resistance is small; 
2. reliable action; 
3. To reduce water hammer pressure; 
4. The applicable medium and small diameter pipeline; 
5. level, Vertical installation; 
6. Flexible, Seal good performance; 
Connection form: Flange type 
Standard specification:

Design and manufacture

Supporting Flange

Test and inspection

ASME B16.34
GB/T12235, GB/T12236

ANSI B16.5, JB/T97

API598
JB/T9092

Main Connection Dimensions

GB 1.6MPa

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DN

15

20

25

32

40

50

65

80

100

125

150

200

250

300

L

130

150

160

180

200

230

290

310

350

400

480

600

650

750

H

90

95

100

105

110

115

140

170

200

230

255

285

290

300

Wt

14

15

16

17

18

19

24

29

40

58

83

100

105

110

GB 2.5MPa

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DN

15

20

25

32

40

50

65

80

100

125

150

200

250

300

L

130

150

160

180

200

230

290

310

350

400

480

600

650

750

H

90

95

100

105

110

115

140

170

200

230

260

285

290

300

Wt

14

15

16

17

18

19

24

29

40

72

104

145

180

230

GB 4.0MPa

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DN

32

40

50

65

80

100

125

150

200

250

300

 

L

180

200

230

290

310

350

400

480

600

650

750

 

H

120

140

150

160

175

200

225

260

315

320

300

 

Wt

9

12

15

20

33

41

73

104

147

180

230

 

GB 6.4MPa

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DN

32

40

50

65

80

100

125

150

200

250

300

 

L

230

260

300

340

380

430

500

550

600

775

900

 

H

160

170

170

190

205

230

265

310

350

480

520

 

Wt

12

20

29

35

47

68

100

142

195

250

300

 

GB10.0MPa

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DN

15

20

25

32

40

50

65

80

100

125

150

200

250

300

L

130

150

160

180

200

230

290

310

350

400

480

600

650

750

H

90

95

100

105

110

115

140

170

200

230

255

285

290

300

Wt

14

15

16

17

18

19

24

29

40

58

83

100

105

110

GB 16.0MPa

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DN

15

20

25

32

40

50

65

80

100

125

150

200

250

300

L

130

150

160

180

200

230

290

310

350

400

480

600

650

750

H

90

95

100

105

110

115

140

170

200

230

260

290

290

300

Wt

14

15

16

17

18

19

24

29

40

72

104

180

180

230

Installation should pay attention to the following items:
1, do not make the Check valve in the line to bear Weight, large Check valve shall be independent support, make it is not affected by the pressure caused by the piping.
2, pay attention to the medium flow direction when installation shall conform to the body the ticket direction arrow.
3, Lift Type vertical disc Check valve should be installed in vertical pipe runs.
4, Lift Type horizontal disc Check valve should be installed in horizontal pipe runs.