壳体最小壁厚tm

单位为毫米

公称压力 PN

内径

16

25

40

63

100

160

320

d

20

50

110

150

260

420

760

6

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.3

3.3

3.8

4.2

4.8

7.6

10

3.0

3.0

3.0

3.0

3.0

3.1

3.3

3.3

3.6

3.8

4.3

5.2

5.8

10.1

15

3.0

3.0

3.0

3.1

3.1

3.2

3.3

3.3

4.1

4.3

4.8

6.2

6.9

12.7

20

3.0

3.0

3.4

3.7

3.8

4.2

4.3

4.5

5.1

5.3

6.1

7.4

8.9

17.5

25

4.0

4.1

4.2

4.6

4.8

4.8

4.8

4.8

6.4

6.4

7.1

8.7

11.2

22.3

32

4.8

4.8

4.8

4.8

4.8

4.8

4.8

4.8

6.6

6.9

8.6

10.8

13.5

26.9

40

4.8

4.8

4.8

4.8

4.8

5.0

5.7

5.8

7.4

7.6

9.9

12.6

15.7

32.0

50

5.5

5.6

5.7

6.0

6.3

6.3

6.3

6.4

7.9

8.3

11.7

14.7

20.1

42.4

65

5.5

5.6

5.7

6.2

6.4

7.0

7.1

7.1

9.1

9.8

14.5

18.5

24.1

52.3

80

5.6

5.6

6.1

6.7

7.1

7.9

8.1

8.1

10.7

11.5

16.8

22.3

29.0

62.2

90

5.8

6.4

6.7

7.1

7.4

7.7

8.4

8.6

11.9

12.6

19.1

24.2

32.8

72.4

100

6.2

6.4

6.6

7.3

7.9

9.1

9.4

9.7

13.0

13.4

21.1

26.7

37.3

82.3

125

6.6

7.1

7.4

8.1

8.6

9.2

10.8

11.2

16.0

16.9

25.9

33.4

46.0

102.1

150

6.8

7.1

7.5

8.8

9.7

10.4

12.2

12.7

18.8

19.9

30.7

39.7

54.6

122.2

175

7.2

7.6

8.1

9.5

10.4

11.3

13.8

14.5

21.1

22.4

35.8

46.3

63.8

142.0

200

7.7

7.9

8.5

10.1

11.2

12.2

15.2

16.0

23.6

25.1

40.4

52.2

71.9

162.0

225

7.9

8.4

9.0

10.7

11.9

13.2

16.8

17.8

26.2

27.9

44.7

58.1

80.5

181.9

250

8.1

8.6

9.3

11.3

12.7

14.2

18.5

19.6

28.7

30.6

49.3

64.3

89.2

201.9

275

8.5

9.1

9.8

12.0

13.5

15.3

20.3

21.6

31.5

33.5

53.8

70.3

97.8

221.7

300

9.1

9.7

10.5

12.7

14.2

16.2

21.9

23.4

34.3

36.5

58.7

76.6

106.4

241.8

325

9.5

10.2

11.1

13.7

15.5

17.5

23.1

24.6

37.1

39.5

63.5

82.7

114.8

261.6

350

9.9

10.7

11.7

14.6

16.5

18.6

24.6

26.2

39.6

42.2

68.3

89.0

123.4

281.7

400

10.5

11.4

12.5

15.8

18.0

22.6

28.0

30.0

45.0

48.0

77.7

101.3

140.7

321.6

450

11.2

12.2

13.5

17.3

19.8

22.7

31.1

33.3

49.8

53.2

86.9

113.8

158.5

361.4

500

11.9

13.0

14.4

18.5

21.3

24.7

34.5

37.1

55.1

58.8

96.3

126.1

175.8

401.3

550

12.5

13.7

15.3

20.0

23.1

26.8

37.5

40.4

61.0

65.0

105.4

138.3

193.0

441.2

600

13.4

14.7

16.4

21.3

24.6

28.7

40.1

43.7

66.3

70.7

115.1

150.9

210.3

481.1

650

14.0

15.5

17.3

22.8

26.4

30.9

43.6

47.0

71.6

76.4

124.5

163.2

227.6

521.0

700

14.8

16.3

18.2

24.0

27.9

32.9

47.0

50.8

77.0

82.1

133.6

175.4

245.1

560.8

750

15.3

17.0

19.1

25.5

29.7

35.0

50.0

54.1

82.0

87.5

143.0

187.8

262.4

600.7

800

16.2

18.0

20.2

26.8

31.2

36.9

53.3

57.7

87.4

93.3

152.4

200.1

279.7

640.6

850

16.9

18.8

21.2

28.3

33.0

39.1

56.3

61.0

92.7

99.0

161.8

212.5

296.9

680.5

900

17.6

10.6

21.1

29.7

34.8

41.2

59.3

64.5

98.0

104.7

171.2

224.8

314.2

720.3

950

18.2

20.3

23.0

31.0

36.3

43.5

62.8

68.1

103.4

110.4

180.6

237.2

331.5

760.2

1000

19.1

21.3

24.1

32.5

38.1

45.3

65.9

71.4

108.7

116.1

190.0

249.6

349.0

800.1

1050

19.8

22.1

25.0

33.8

39.6

47.2

69.0

74.9

114.0

121.8

199.4

262.0

366.3

840.0

1100

20.4

22.9

26.0

35.2

41.4

49.4

72.1

78.2

119.4

127.5

208.5

274.1

383.5

879.6

1150

21.0

23.6

26.9

36.7

43.2

51.6

75.4

81.8

124.7

133.2

217.9

286.5

400.8

919.5

1200

21.9

24.6

28.0

38.0

44.7

53.5

78.4

85.1

130.0

138.8

227.3

298.9

418.1

959.4

1250

22.6

25.4

28.9

39.5

46.5

55.6

81.6

88.6

135.1

144.3

236.7

311.3

435.6

999.2