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H41 national standard lift check valve

Release Date: October 27, 2015

Check valve

Overview

PN l.6MPa ~ 16.0MPa H41 national standard lift check valve is also called reverse flow valve, check valve, back pressure valve, check valve. This type of valve is automatically opened and closed by the force generated by the flow of the medium itself in the pipeline, and belongs to an automatic valve. The check valve is used in the pipeline system, and its main function is to prevent the medium from flowing backward, prevent the pump and its driving motor from reversing, and release the medium in the container. Non-return valves can also be used to supply lines to auxiliary systems whose pressure may rise above the pressure of the main system.

Implementation standards

Types of

Design and Manufacturing

Structure length

Flange size

Pressure temperature

Test-inspection

Swing check valve

GB12236

GB12221

GB9113 JB79

GB9131

GB / T13927 JB / 9092

Lift check valve

GB12235

Stress test

Nominal pressure

1.6

2.5

4.0

6.4

10.0

16.0

Strength test

2.4

3.8

6.0

9.6

15.0

24.0

Water seal test

1.8

2.8

4.4

7.0

11.0

18.0

Hermetic seal test

0.5-0.7

Material and performance of main parts

Body, cover, plate

Valve stem

Sealing surface

Pad

Sealing surface

Working temperature ℃

Applicable medium

WCB

WCB

1Cr13

Reinforced Flexible Graphite 1Cr13 / Flexible Graphite PTFE Gear Washer

13Cr STL Body Material Nylon

≤425

Steam oil

WC6

WC6

≤540

WC9

WC9

≤570

ZGCr5Mo

ZGCr5Mo

≤550

ZG1Cr18Ni9Ti

ZG1Cr18Ni9Ti

ZG1Cr18Ni9Ti

≤200

Nitric acid

ZG1Cr18Ni12Mo9Ti

ZG1Cr18Ni12Mo9Ti

ZG1Cr18Ni12Mo9Ti

≤200

Acetic acid

PN l.6MPa ~ l0.0MPa

Main dimensions and weight

1.6MPa

DN

L

D

D1

D2

b

n-Φd

H

W (kg)

Convex flange RF H41H H41Y H41W H41N16C 16P 16R

15

130

95

65

45

14

4-14

58

2.0

20

150

105

75

55

14

4-14

63

2.7

25

160

115

85

65

14

4-14

71

3.5

32

180

135

100

78

16

4-18

84

5.4

40

200

145

110

85

16

4-18

96

6.5

50

230

160

125

100

16

4-18

115

9.1

65

290

180

145

120

18

4-18

145

14

80

310

195

160

135

20

8-18

156

25

100

350

215

180

155

20

8-18

170

40

125

400

245

210

185

twenty two

8-18

201

56

150

480

280

240

210

twenty four

8-23

238

90

2.5MPa

15

130

95

65

45

16

4-14

60

4

Convex flange RF H41H H41Y H41W H41N25 25P 25R

20

150

105

75

55

16

4-14

64

5

25

160

115

85

65

16

4-14

68

6

32

180

135

100

78

18

4-18

79

9

40

200

145

110

85

18

4-18

98

12

50

230

160

125

100

20

4-18

110

16

65

290

180

145

120

twenty two

8-18

160

twenty four

80

310

195

160

135

twenty two

8-18

170

31

100

350

230

190

160

twenty four

8-23

195

45

125

400

270

220

188

28

8-25

225

68

150

480

300

250

210

30

8-25

255

100

PN 4.0MPa ~ 10.0MPa main dimensions and weight

4.0MPa

DN

L

D

D1

D2

b

nd

H

weight

Concave and convex flange MFM H41H H41Y H41W H41N40 40P 40R 40I

15

130

95

65

40

16

4-14

100

4

20

150

105

75

51

16

4-14

105

5

25

160

115

85

58

16

4-14

120

6

32

180

135

100

66

18

4-18

130

9

40

200

145

110

76

18

4-18

135

12

50

230

160

125

88

20

4-18

149

15

65

290

180

145

110

twenty two

8-18

164

18

80

310

195

160

121

twenty two

8-18

169

25

100

350

230

190

150

twenty four

8-23

194

35

125

400

270

220

176

28

8-25

225

65

150

480

300

250

204

30

8-25

255

100

6.4MPa

15

210

105

75

40

18

4-14

100

7

Concave and convex flange MFM H41H H41Y H41W H41N64 64P 64R 64I

20

230

125

90

51

20

4-18

110

11

25

230

135

100

58

twenty two

4-18

125

13

32

260

150

110

66

twenty four

4-23

152

14

40

260

165

125

76

twenty four

4-23

168

20

50

300

175

135

88

26

4-23

170

twenty three

65

340

200

160

110

28

8-23

188

37

80

380

210

170

121

30

8-23

205

46

100

430

250

200

150

32

8-25

230

68

125

500

295

240

176

36

8-30

245

93

150

550

340

280

204

38

8-34

265

120

10.0MPa

15

210

105

75

40

20

4-14

100

7

Concave and convex flange MFM H41H H41Y H41W H41N100 100P 100R 100I

20

230

125

90

51

twenty two

4-18

110

11

25

230

135

100

58

twenty four

4-18

125

13

32

260

150

110

66

twenty four

4-23

140

14

40

260

165

125

76

26

4-23

168

25

50

300

195

145

88

28

4-25

170

28

65

340

200

170

110

32

8-25

188

42

80

380

230

180

121

34

8-25

205

65

100

430

265

210

150

38

8-30

230

95

125

500

310

250

176

42

8-34

245

115

150

550

350

290

204

46

12-34

265

142

160 160P 160R 160I

32

260

165

115

85

30

4-25

170

40

260

175

125

92

32

4-27

190

50

300

215

165

132

36

8-25

300

65

340

245

190

152

44

8-30

300

80

380

260

205

168

46

8-30

370

100

430

300

240

200

48

8-34

410