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Stainless steel lift check valve

The release date:[2017-08-07]     hits

Stainless steel lift type flange check valve

product information

Key Features: Chief features :

1. the middle flange bolts 1.Bolted bonnet

2. Horizontal and vertical pipelines 2.For horizontal or vertical lines
3. Swing or lift type discs 3.Swing or lift type disc
4. Standard flange connection 4.Flanged ends

Lifting Flange Check Valve Properties

1, the valve ends must be blocked at both ends, there is dry and ventilated room. Such as long-term storage, should always check the anti-corrosion.
2, the installation should be cleaned before the valve, and eliminate the defects caused in the transport process.
3, the installation must be carefully checked on the valve signs and nameplate is in line with the use requirements.
4, lift vertical flap check valve should be installed in the vertical pipe.
5, lift the level of the valve check valve should be installed in the horizontal pipe.
6, in the pipeline do not make the check valve to bear the weight, large check valve should be independent support, so that the pressure generated by the impact of piping.
7, the installation of check valve, the media should pay special attention to the direction of flow, the media should be the normal flow direction and the direction of the arrow on the valve body is consistent, otherwise it will cut off the normal flow of media. The bottom valve should be installed at the bottom of the pump suction line.
8, the general type of lift check valve should be installed in the horizontal pipe, vertical lift check valve and bottom valve is generally installed in the vertical pipe, and the media from bottom to top flow.
9, the check valve is closed, will produce water hammer in the pipeline pressure, serious will lead to damage to the valve, pipe or equipment, especially for large mouth or high pressure pipeline, it should cause the check valve selection High attention.

★ Lifting Flange Check Valve Standard:

本阀门在使用过程中,介质按图示箭头方向流动。
1,当介质按规定方向流动时,阀瓣受介质力的作用,被开启介质逆流时,因阀瓣自重和阀瓣受介质反向力的作用,使阀瓣与阀座的密封面密合而关闭,达到阻止介质逆流的目的。
2,阀体及阀瓣的密封面采用不锈钢堆焊。
3,本阀门的结构长度按GB12221-1989的规定,法兰连接尺寸按JB/T79-1994的规定

升降式法兰止回阀产品规范 Product Specification

产品规范

Product

Specification

设计规范

Design Spec

结构长度

Face to Face

连接法兰

Flange End

试验与检验

Test & Check

压力-温度

Pressure-Temp

产品标识

Marking

供货规范

Supply

GB/T 12236

GB/T 12235

GB/T 12221

JB/T 79

JB/T 9092

GB/T 9131

GB/T 12220

JB/T 7928

升降式法兰止回阀主要零部件材料 Main Part Material

零件名称

阀体材料Body Material

Part Name

阀体/阀盖

WCB

WC6

LCB

CF8M

Body/Bonnet

阀瓣

25

1Cr18Ni9Ti

1Cr18Ni9Ti

1Cr18Ni9Ti

Disk

绕轴

WCB

25Cr2MoV

LCB

CF8M

Swing Arm

垫片

18-8柔性石墨/18-8Flexible

Graphite Gasket

螺栓

35/35CrMo

25Cr2MoV

1Cr18Ni9

1Cr18Ni9

Bolt

适用温度

-29~425℃

-29~550℃

-46~350℃

-40~550℃

Suitable Temp

适用介质

水,油品,蒸汽

Water,Oil,Steam

蒸汽,油品

Steam,Oil

丙烷,乙烯

Propane,Ethane

硝酸类

Nitric Acid

Suitable Medium

升降式法兰止回阀主要外形和连接尺寸Main External And Connection



主要外形和主要连接尺寸Main External And Connection Dimension

公称通径

DN

主要外形尺寸和连接尺寸(mm)Main external and connection dimensions

重量

WT(kg)

L

D

D1

D2

b

Z-Φd

H

H41H-16C H41W-16C H41W-16P H41W-16R H41W-16I

15

130

96

65

45

14

4-Φ14

77

3

20

150

105

75

55

14

4-Φ14

77

4

25

160

115

85

65

14

4-Φ14

80

5

32

180

135

100

78

16

4-Φ18

85

7

40

200

145

110

85

16

4-Φ18

95

9

50

230

160

125

100

16

4Φ-18

105

10

65

290

180

145

120

18

4-Φ18

120

20

80

310

195

160

135

20

8-Φ18

130

30

100

350

215

180

155

20

8-Φ18

140

39

125

400

245

210

185

22

8-Φ18

155

50

150

480

280

240

210

24

8-Φ23

180

70

200

600

335

295

265

26

12-Φ23

215

161

250

730

405

355

320

32

12-Φ25

260

251

300

850

460

410

375

34

12-Φ25

315

395

H41H-25 H41W-25 H41W-25P H41W-25R H41W-25I

15

130

95

65

45

16

4-Φ14

100

3.4

20

150

105

75

55

16

4-Φ14

105

5

25

160

115

85

65

16

4-Φ14

120

5.7

32

180

135

100

78

18

4-Φ18

130

9.1

40

200

145

110

85

18

4-Φ18

135

11.8

50

230

160

125

100

20

4-Φ18

149

14.4

65

290

180

145

120

22

8-Φ18

160

23

80

310

195

160

135

22

8-Φ18

169

30

100

350

230

190

160

24

8-Φ23

194

44

125

400

270

220

188

28

8-Φ25

222

65

150

480

300

250

218

30

8-Φ25

255

99

200

600

360

310

278

34

12-Φ25

305

190

250

730

425

370

332

36

12-Φ30

355

315

300

850

485

430

390

40

16-Φ30

410

450

Contact us

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Post box: rtv@zjrtfm.com
The ministry of foreign trade:0577-8588 8220 / 0577-8588 8221
E-mail: valve@zjrtfm.com / monica@zjrtfm.com
Web site: www.dekainu.com
Address:Block B-16, Airport New Area, Longwan District, Wenzhou City, Zhejiang Province (Jinhai Erdao 11 Road)

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