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Marine Flanged Cast Steel Steam Pressure reducing valve GB/T1852-1993

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Marine Flanged Cast Steel Steam Pressure reducing valve GB/T1852-1993

Marine Flanged Cast Steel Steam Pressure reducing valve GB/T1852-1993:

1.Design standard:GB/T1852-1993.

2.End standard:GB/T2501&GB/T569.

3.End type:Flange.

4.Steam pressure:

  • Inlet:0.4~2.5Mpa;
  • Outlet:0.2~0.6/0.6~1.2Mpa.

5.DN:

  • Inlet:20mm-150mm;
  • Outlet:25mm-200mm.

6.Main material:

  • Body/Bonnet:ZG230-450;
  • Diaphragm:QSn6.5-0.1;
  • Spring:50CrVA.

7.Application:Steam with temprature below 300.

8.Function:Such valves are mainly used for steam pressure reducing.

9.Fundamental dimensions of Marine Flanged Cast Steel Steam Pressure reducing valve GB/T1852-1993:

Chart 1 Fundamental dimensions of valves with end standard GB/T569:

DN/mm

Structure dimension/mm

Thickness

/mm

Flange connection dimension/mm

Weight

PN2.5 Inlet

PN1.6 Outlet

DN1

DN2

L

H

h

D1

D2

D3

d1

Bolt

b1

D4

D5

D6

d2

Bolt

b2

kg

n1

Th1

n2

Th2

20

25

170

250

75

6

95

68

48

13

4

M12

11

105

73

56

13

4

M12

12

15

25

32

105

73

56

12

115

83

64

15

6

M14

13

16

32

40

200

260

80

7

115

83

64

15

6

M14

13

125

93

74

21

40

50

210

270

85

125

93

74

135

103

84

23

50

65

240

290

115

135

103

84

170

132

110

17

8

M16

15

24

65

80

240

300

115

170

132

110

17

8

M16

15

185

147

126

16

40

80

100

280

320

120

8

185

147

126

16

205

167

146

10

43

100

125

330

350

150

9

205

167

146

10

225

187

168

72

125

150

380

360

190

11

240

196

172

21

M20

19

255

217

196

12

20

90

150

200

470

425

225

13

270

226

200

12

20

325

281

254

21

M20

120

Chart 2 Fundamental dimensions of valves with end standard GB/T2501:

DN/mm

Structure dimension/mm

Thickness

/mm

Flange connection dimension/mm

Weight

PN2.5 Inlet

PN1.6 Outlet

DN1

DN2

L

H

h

D1

D2

D3

d1

Bolt

b1

D4

D5

D6

d2

Bolt

b2

kg

n1

Th1

n2

Th2

20

25

170

250

75

6

105

75

58

14

4

M12

16

115

85

68

14

4

M12

16

16

25

32

115

85

68

140

100

78

18

M16

18

17

32

40

200

260

80

7

140

100

78

18

M16

18

150

110

88

22

40

50

210

270

85

150

110

88

165

125

102

24

50

65

240

290

115

165

125

102

20

185

145

122

20

26

65

80

240

300

115

185

145

122

8

22

200

160

133

8

42

80

100

280

320

120

8

200

160

133

24

220

180

158

22

46

100

125

330

350

150

9

235

190

158

22

M20

250

210

184

74

125

150

380

360

190

11

270

220

184

26

M24

26

285

240

212

22

M20

24

96

150

200

470

425

225

13

300

250

212

340

295

268

12

127

10.Drawing of Marine Flanged Cast Steel Steam Pressure reducing valve GB/T1852-1993:

Marine Flanged Cast Steel Steam Pressure reducing valve GB/T1852-1993

11. Certificate available:

Marine Flanged Cast Steel Steam Pressure reducing valve GB/T1852-1993

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