国标升降式止回阀

【产品用途】
H41H、H41Y 型 PN16~PN100 升降式止回阀是生产过程调节系统中的重要环节之一,是控制管道内介质单向流向的阀门,阻止介质倒流。


【产品特点】
1、H41H、H41Y 型升降式止回阀具有结构简单,动作可靠,维修方便等优点,广泛应用于净化设备、石油、化工、冶金、电力、轻纺等生产过程中
2、当介质由阀体箭头所示流向进入阀体,介质的压力作用在阀瓣上产生向上的推力,当介质推力大于阀瓣重力时,阀门打开。当阀后介质压力作用在阀瓣上的力加上阀瓣自身重力大于阀前压力作用在阀瓣上的力时,阀门关闭,阻止介质倒流


Products and services that meet fluid control requirements

Each process, each facility, and each environmental constraint has its own special requirements. Therefore, Dongyan offers a comprehensive range of products covering different performance levels, pressures, different functions and different materials.

Detail

【性能参数】

型号

H41H-16C~100

H41Y-16C~100

H41W-16P~100

工作压力(MPa)

1.6~10.0

适用温度(℃)

≤425

≤150

适用介质

水、蒸汽、油品

弱腐蚀性介质

材料

阀体、阀盖

碳钢

铬镍钛不锈钢

密封面

堆焊铬不锈钢

堆焊硬质合金

铬镍钛不锈钢

垫片

钢带石墨参缠绕

聚四氟乙烯


【主要外形和连接尺寸】

公称通径

主要外形尺寸和连接尺寸

L

D

D1

D2

b

Z-d

H

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

15

130

95

65

45

14

4-14

77

20

150

105

75

55

14

4-14

77

25

160

115

85

65

14

4-14

80

32

180

135

100

75

16

4-18

85

40

200

145

110

85

16

4-18

95

50

230

160

125

100

16

4-18

105

65

290

180

145

120

18

4-18

120

80

310

195

160

135

20

8-18

130

100

350

215

180

155

20

8-18

140

125

400

245

210

185

22

8-18

155

150

480

280

240

210

24

8-23

180

200

600

335

295

265

26

12-23

215

250

730

405

355

320

30

12-25

260

300

850

460

410

375

34

12-25

315

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

15

130

95

65

45

16

4-14

100

20

150

105

75

55

16

4-14

105

25

160

115

85

65

16

4-14

120

32

180

135

100

78

18

4-18

130

40

200

145

110

85

18

4-18

135

50

230

160

125

100

20

4-18

149

65

290

180

145

120

22

8-18

160

80

310

195

160

135

22

8-18

169

100

350

230

190

160

24

8-23

194

125

400

270

220

180

28

8-25

222

150

480

300

250

218

30

8-25

255

200

600

360

310

278

34

12-25

305

250

730

425

370

332

36

12-30

355

300

850

485

430

390

40

16-30

410


【结构图片】

2.jpg


Product Application Scope

These devices are suitable for accurately controlling media such as gases, liquids, steam, etc., and maintaining process parameters such as pressure, flow rate, temperature, and liquid level at given values. Especially suitable for work environments where the allowable pressure difference is small and the allowable leakage is also small, and the pressure difference is not significant.

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