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The actual product may differ slightly from the image.

High pressure products

Screw-in tube unions with Whitworth thread

M1B40G A

Straight DILO tube unions are available with weld-on ends for applications where high vibration resistance is required. They are also available with weld-on end and screw-in thread. Different threads enable appropriate connections.
On request, we also supply unions in materials with standing temperatures from -270 °C up to +650 °C. Permanent tightness is guaranteed, no matter which version is selected!

Advantages & functions

  • With weld-on end and screw-in thread
  • Available for tube diameters from DN 3 up to DN 50
  • Temperature-resistant from -270 °C up to +650 °C (dependant on the material used)
  • Available for pressures up to 1.000 bar on request
  • Also available in other DIN EN materials
  • Three-part union consisting of weld-on stub, clamping nut and screw-in stub


M1B-G Series for pressures up to PN 100: 

DN

d1

s

d3

d4

d7

L2

l2

i2

a2

s2

s3

Order number 

4

6

1,25

M 14x1,5

G 1/8 A

14

39

18

8

1,5

14

17

M1B 4 G

6

8

1,5

M 16x1,5

G ¼ A

18

41

18

12

2

19

19

M1B 6 G

8

10

1,5

M 18x1,5

G ¼ A

18

46

21

12

2

19

22

M1B 8 G

10

12

1,75

M 20x1,5

G 3/8 A

22

49

22

12

2,5

22

24

M1B 10 G

12

15

2

M 22x1,5

G ½ A

26

54

25

14

3

27

27

M1B 12 G

16

18

2

M 26x1,5

G ½ A

26

56

25

14

3

27

32

M1B 16 G

20

22

2

M 30x1,5

G ¾ A

32

63

29

16

3

32

36

M1B 20 G

25

28

2,5

M 36x2

G 1 A

39

71

34

18

3

41

41

M1B 25 G

32

35

2,5

M 45x2

G 1 ¼ A

49

76

36

20

3

50

50

M1B 32 G

40a

42

3

M 52x2

G 1 ½ A

55

82

39

22

3

55

60

M1B 40a G

40

44

3

M 56x2

G 1 ½ A

55

83

40

22

3

60

65

M1B 40 G

50

57

4

M 68x2

G 2 A

68

92

44

24

3,5

70

75

M1B 50 G


J1B-G Series for pressures up to PN 100: 

DN

d1

s

d3

d4

d7

L2

l2

i2

a2

s2

s3

Order number

4

6

1,25

M 14x1,5

G 1/8 A

14

39

18

8

1,5

14

17

J1B 4 G

6

8

1,5

M 16x1,5

G ¼ A

18

41

18

12

2

19

19

J1B 6 G

8

10

1,5

M 18x1,5

G ¼ A

18

46

21

12

2

19

22

J1B 8 G

10

13,5

1,75

M 22x1,5

G 3/8 A

22

57

26

12

2,5

24

27

J1B 10 G

12

17

2,5

M 24x1,5

G ½ A

26

58

27

14

3

27

30

J1B 12 G

16

21

2,5

M 30x2

G ¾ A

32

67

31

16

3

32

36

J1B 16 G

20

27

3

M 36x2

G 1 A

39

73

36

18

3

41

41

J1B 20 G

25

34

3,5

M 45x2

G 1 ¼ A

49

76

36

20

3

50

50

J1B 25 G

32

42

3,5

M 52x2

G 1 ½ A

55

84

40

22

3

55

60

J1B 32 G

40

49

4

M 60x2

G 1 ¾ A

62

92

44

24

3,5

65

70

J1B 40 G

50

60

5

M 72x2

G 2 A

68

97

46

24

3,5

75

80

J1B 50 G


M2B-G Series for pressures up to PN 200: 

DN

d1

s

d3

d4

d7

L2

l2

i2

a2

s2

s3

Order number

3

6

1,5

M 14x1,5

G ¼ A

18

46

21

12

2

19

19

M2B 3 G

4

8

2

M 16x1,5

G ¼ A

18

46

21

12

2

19

22

M2B 4 G

6

10

2

M 18x1,5

G 3/8 A

22

48

23

12

2,5

22

22

M2B 6 G

8

12

2

M 20x1,5

G 3/8 A

22

50

23

12

2,5

22

24

M2B 8 G

10

13,5

1,75

M 22x1,5

G ½ A

26

58

27

14

3

27

27

M2B 10 G

12

16

2,5

M 24x1,5

G ½ A

26

58

27

14

3

27

30

M2B 12 G

16

20

2,5

M 30x2

G ¾ A

32

67

31

16

3

32

36

M2B 16 G

20

25

2,5

M 36x2

G 1 A

39

77

36

18

3

41

46

M2B 20 G

25

30

3

M 42x2

G 1 ¼ A

49

84

40

20

3

50

50

M2B 25 G

32

38

3,5

M 52x2

G 1 ½ A

55

93

43

22

3

55

60

M2B 32 G

40

44

4,25

M 56x2

G 1 ¾ A

62

102

47

24

3,5

65

65

M2B 40 G

50

57

6

M 68x2

G 2 A

68

109

49

24

3,5

70

80

M2B 50 G


J2B-G Series for pressures up to PN 250: 

DN

d1

s

d3

d4

d7

L2

l2

i2

a2

s2

s3

Order number

3

6

1,5

M 14x1,5

G ¼ A

18

46

21

12

2

19

19

J2B 3 G

4

8

2

M 16x1,5

G ¼ A

18

46

21

12

2

19

22

J2B 4 G

6

10

2

M 18x1,5

G 3/8 A

22

48

23

12

2,5

22

22

J2B 6 G

8

12

2

M 20x1,5

G 3/8 A

22

50

23

12

2,5

22

24

J2B 8 G

10

13,5

1,75

M 22x1,5

G ½ A

26

58

27

14

3

27

27

J2B 10 G

12

17

2,5

M 24x1,5

G ½ A

26

59

28

14

3

27

30

J2B 12 G

16

21

2,5

M 30x2

G ¾ A

32

68

32

16

3

32

36

J2B 16 G

20

27

3,5

M 36x2

G 1 A

39

77

36

18

3

41

46

J2B 20 G

25

34

4,5

M 45x2

G 1 ¼ A

49

85

41

20

3

50

55

J2B 25 G

32

42

4

M 52x2

G 1 ½ A

55

94

44

22

3

55

60

J2B 32 G

40

50

5,5

M 64x2

G 1 ¾ A

62

102

47

24

3,5

65

75

J2B 40 G


M3B-G Series for pressures up to PN 320: 

DN

d1

s

d3

d4

d7

L2

l2

i2

a2

s2

s3

Order number

3

6

1,5

M 14x1,5

G ¼ A

18

46

21

12

2

19

19

M3B 3 G

4

8

2

M 16x1,5

G ¼ A

18

46

21

12

2

19

22

M3B 4 G

5

10

2,5

M 18x1,5

G 3/8A

22

48

23

12

2,5

22

24

M3B 5 G

6

12

3

M 20x1,5

G 3/8 A

22

54

25

12

2,5

22

27

M3B 6 G

8

13,5

2,75

M 22x1,5

G ½ A

26

58

27

14

3

27

30

M3B 8 G

10

16

3

M 24x1,5

G ½ A

26

64

29

14

3

27

32

M3B 10 G

12

20

4

M 30x2

G ¾ A

32

73

33

16

3

32

36

M3B 12 G

16

25

4,5

M 36x2

G 1 A

39

81

38

18

3

41

46

M3B 16 G

20

30

5

M 42x2

G 1 ¼ A

49

90

42

20

3

50

50

M3B 20 G

25a

35

5,5

M 48x2

G 1 ½ A

55

96

45

22

3

55

55

M3B 25a G

25

38

6

M 52x2

G 1 ½ A

55

99

45

22

3

55

60

M3B 25 G

32

44

6,75

M 60x2

G 1 ¾ A

62

110

49

24

3,5

65

70

M3B 32 G


J3B-G Series for pressures up to PN 320: 

DN

d1

s

d3

d4

d7

L2

l2

i2

a2

s2

s3

Order number

3

6

1,5

M 14x1,5

G ¼ A

18

46

21

12

2

19

19

J3B 3 G

4

8

2

M 16x1,5

G ¼ A

18

46

21

12

2

19

22

J3B 4 G

5

10

2,5

M 18x1,5

G 3/8A

22

48

23

12

2,5

22

24

J3B 5 G

6

12

3

M 20x1,5

G 3/8 A

22

54

25

12

2,5

22

27

J3B 6 G

8

13,5

2,75

M 22x1,5

G ½ A

26

58

27

14

3

27

30

J3B 8 G

10

17

3

M 27x2

G ½ A

26

67

32

14

3

30

36

J3B 10 G

12

21

4

M 33x2

G ¾ A

32

75

35

16

3

36

41

J3B 12 G

16

27

4,5

M 39x2

G 1 A

39

82

39

18

3

41

46

J3B 16 G

20

34

5,5

M 48x2

G 1 ¼ A

49

94

45

20

3

50

55

J3B 20 G

25

42

7

M 56x2

G 1 ½ A

55

101

47

22

3

60

65

J3B 25 G

32

48

6,5

M 64x2

G 1 ¾ A

62

111

50

24

3,5

65

70

J3B 32 G


M6B Series for pressures up to PN 640:

DN

d1

s

d3

d4

d7

L2

l2

i2

a2

s2

s3

Order number

4103

M 20x1,5

G ½ A

2654281332727

M6B 4G

6102

M 22x1,5

G ½ A

2657281432732M6B 6G
813,52,75

M 26x1,5

G ¾ A

3267321633236M6B 8G
10173,5

M 30x2

G 1 A 

3976371834241M6B 10G
12204

M 33x2

G 1 ¼ A

4987402035046M6B 12G
16255

M 42x2

G 1 ¼ A

4993432035055M6B 16G
20306

M 45x2

G 1 ½ A

55120542235560M6B 20G
25387,5

M 52x2

G 3 ¾ A

62

131

582436565M6B 25G


M10B Series for pressures up to PN 1000:

DN

d1

s

d3

d4

d7

L2

l2

i2

a2

s2

s3

Order number

4103,25

M 22x1,5

G ½ A

2670351432732

M10B 4G

613,53,75

M 26x1,5

G ¾ A

3280381633236M10B 6G
8174,5

M 30x2

G 1 A 

3997471834141M10B 8G
10205

M 33x2

G 1 ¼ A

49101502035046M10B 10G
12256,5

M 42x2

G 1 ¼ A

49118552035055M10B 12G


For orders on individual parts we need the following information: 

Pieces

Component

Designation 

Order number 

Material number

1

1

Weld-on stub

(Series)-(DN)- 1

___________________

1

2

Clamping nut 

(Series)-(DN)- 2

___________________

1

5

Screw-in stub

(Series)-(DN)- 5

___________________


Technical data

Nominal pressure (in bar) 100 PN
Nominal width (in mm) 40 DN
d1Outer diameter of welding nozzle 44 mm
sWandstärke 3 mm
d3 M 56x2 
d4 G 1 ½ A 
d7 55 mm
L2 82 mm
l1 39 mm
i1 22 mm
a2 3 mm
s2 55 Wrench size
s3 60 Wrench size
Material according to DIN EN 1.0460 
Material description Steel 

Technical drawing



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