NPT Stainless Steel Fitting ASTM A182 F304 Threadolet MSS SP-97

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Model Number:A182 F304 Threadolet
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NPT Stainless Steel Fitting ASTM A182 F304 Threadolet MSS SP-97


What is a threadolet?


A threadolet is exactly the same as the weldolet with the main difference being that it connects to the branch pipe through a thread.Another difference of the threadolet with respect to the weldolet is the fact that it is used in applications with much lower pressures and smaller diameters.


The thread of this type of connection is generally of the NPT type according to ASME B1.20.1 specifications.


Specifications of threadolet:


Size1/8" - 4" / DN6 - DN100
Pressure3000lbs / 6000lbs
Manufacturing StandardMSS SP-97
Carbon SteelASTM A105, 20#
Low Temperature SteelASTM A350 LF2, 16Mn
Alloy SteelASTM A182 F11 / F12 / F5 / F9 / F91 / F92
Stainless SteelASTM A182 F304/304L/304H, 316/316L, 310S, 317,347,904L
Duplex SteelASTM A182 F51, F53, F44

Referenced Weight Chart:


Branch Nominal SizeTHRD Outler
DNNPS30006000
61/80.05-
81/40.05-
103/80.09-
151/20.170.32
203/40.220.47
2510.430.65
320.610.96
400.691.28
5021.102.15
651.52-
8032.50-
10044.10-


MSS SP-97 Threadolet Dimensions


Branch Nominal Size

Length

OD of Fitting

OD at End of Branch

Length of Thread

Cut Hole Dia.

DN

NPS

3000

6000

3000

6000

3000

6000

3000

6000

6

1/8

19


27


22


6.7

16


8

1/4

19


27


22


10.2

16


10

3/8

21


30


25


10.4

19


15

1/2

25

32

38

45

33

42

13.6

24

19

20

3/4

27

37

47

52

39

48

13.9

30

25

25

1

33

40

56

63

48

58

17.3

36

33

32

1 1/4

33

41

66

72

58

67

18

45

38

40

1 1/2

35

43

75

83

64

77

18.4

51

49

50

2

38

52

90

104

77

93

19.2

65

59

65

2 1/2

46


105


94


28.9

76


80

3

51


124


114


30.5

94


100

4

57


154


140


33

121


Stainless Steel F304 Equivalent Grades:


STANDARDWERKSTOFF NR.UNSJISBSGOSTAFNOREN
F3041.4301S30400SUS 304304S3108Х18Н10Z7CN18‐09X5CrNi18-10

Chemical Composition of F304:


GradeCMnPSSiNiCrFe
F3040.082.000.0450.0301.08-1118-20Bal.

Applications:


Thredolets are used for low-pressure 90-degree pipe branches.

The branch pipe is screwed on the Thredolet, which is welded on the run pipe.

The threading is generally of the NPT type and conforms to the ASME B1.20.1 specification.




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NPT Stainless Steel Fitting ASTM A182 F304 Threadolet MSS SP-97

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