ANSI Flanged Reducers excentric (Class 150)

In case of horizontal installation, excentric Flanged Reducers enable the complete draining of pipe sections. Depending on the nominal width, the reducers are lined with PTFE, PFA or PP.

Materials:

  • carbon steel
  • stainless steel

Lining materials:

  • PTFE (virgin or conductive)
  • PFA (virgin or conductive)
  • PP

Flanges:

  • fix-fix
  • fix-loose
  • loose-loose

Other pressure rating:

  • Class 150

Special features:

  • earthing stud/ lug
  • vent hole extension

Optional extras:

  • final painting
  • non-destructive testing

NPS1

 

 

NPS2

 

 

L

 

(mm)

d1(1)

 

(mm)

d4(1)

 

(mm)

K(1)

 

(mm)

smin(1)

 

(mm)

a1(1)

 

(mm)

a2(1)

 

(mm)

d1(2)

 

(mm)

d4(2)

 

(mm)

K(2)

 

(mm)

smin(2)

 

(mm)

a1(2)

 

(mm)

a2(2)

 

(mm)

Lining materials

 

 

No. of bolts x

thread (UNC)

Wt.

(ca.

kg / pc.)

NPS1

NPS2

¾“

½“

114

26.7

42.9

69.9

3.0

16.2

19.7

26.7

34.9

60.3

3.0

14.6

18.2

PTFE

4 x ½“

4 x ½“

1.5

1“

½“

114

33.4

50.8

79.4

3.0

17.7

21.3

26.7

34.9

60.3

3.0

14.6

18.2

PTFE

4 x ½“

4 x ½“

1.9

1“

¾“

114

33.4

50.8

79.4

3.0

17.7

21.3

26.7

42.9

69.9

3.0

16.2

19.7

PTFE

4 x ½“

4 x ½“

2.3

1¼“

¾“

114

42.2

63.5

88.9

3.0

19.3

22.9

26.7

42.9

69.9

3.0

16.2

19.7

PTFE

4 x ½“

4 x ½“

2.7

1¼“

1“

114

42.2

63.5

88.9

3.0

19.3

22.9

33.4

50.8

79.4

3.0

17.7

21.3

PTFE

4 x ½“

4 x ½“

3.1

1½“

¾“

114

48.3

73.0

98.4

4.0

21.9

25.5

26.7

42.9

69.9

4.0

17.2

20.7

PFA

4 x ½“

4 x ½“

3.0

1½“

1“

114

48.3

73.0

98.4

3.0

20.9

24.5

33.4

50.8

79.4

3.0

17.7

21.3

PTFE

4 x ½“

4 x ½“

3.3

1½“

1¼“

114

48.3

73.0

98.4

3.0

20.9

24.5

42.2

63.5

88.9

3.0

19.3

22.9

PTFE

4 x ½“

4 x ½“

3.7

2“

1“

127

60.3

92.1

120.7

4.0

23.5

27.6

33.4

50.8

79.4

4.0

18.7

22.3

PFA

4 x ⅝“

4 x ½“

4.5

2“

1¼“

127

60.3

92.1

120.7

3.0

22.5

26.6

42.2

63.5

88.9

3.0

19.3

22.9

PTFE

4 x ⅝“

4 x ½“

5.0

2“

1½“

127

60.3

92.1

120.7

3.0

22.5

26.6

48.3

73.0

98.4

3.0

20.9

24.5

PTFE

4 x ⅝“

4 x ½“

5.1

2½“

1¼“

140

73.0

104.8

139.7

4.0

26.7

31.5

42.2

63.5

88.9

4.0

20.3

23.9

PFA

4 x ⅝“

4 x ½“

6.3

2½“

1½“

140

73.0

104.8

139.7

4.0

26.7

31.5

48.3

73.0

98.4

4.0

21.9

25.5

PTFE

4 x ⅝“

4 x ½“

6.6

2½“

2“

140

73.0

104.8

139.7

4.0

26.7

31.5

60.3

92.1

120.7

4.0

23.5

27.6

PTFE

4 x ⅝“

4 x ⅝“

7.6

3“

1“

152

88.9

127.0

152.4

4.0

28.3

33.4

33.4

50.8

79.4

4.0

18.7

22.3

PFA

4 x ⅝“

4 x ½“

7.0

3“

1½“

152

88.9

127.0

152.4

4.0

28.3

33.4

48.3

73.0

98.4

4.0

21.9

25.5

PFA

4 x ⅝“

4 x ½“

7.8

3“

2“

152

88.9

127.0

152.4

3.0

27.3

32.4

60.3

92.1

120.7

3.0

22.5

26.6

PTFE

4 x ⅝“

4 x ⅝“

8.7

3“

2½“

152

88.9

127.0

152.4

3.0

27.3

32.4

73.0

104.8

139.7

3.0

25.7

30.5

PTFE

4 x ⅝“

4 x ⅝“

10.5

4“

2“

178

114.3

157.2

190.5

4.0

28.3

33.9

60.3

92.1

120.7

4.0

23.5

27.6

PFA

8 x ⅝“

4 x ⅝“

11.3

4“

2½“

178

114.3

157.2

190.5

4.5

28.8

34.4

73.0

104.8

139.7

4.5

27.2

32.0

PTFE

8 x ⅝“

4 x ⅝“

13.2

4“

3“

178

114.3

157.2

190.5

4.5

28.8

34.4

88.9

127.0

152.4

4.5

28.8

33.9

PTFE

8 x ⅝“

4 x ⅝“

14.2

5“

2½“

203

141.3

185.7

215.9

4.0

28.3

34.5

73.0

104.8

139.7

4.0

26.7

31.5

PFA

8 x ¾“

4 x ⅝“

15.5

5“

3“

203

141.3

185.7

215.9

4.0

28.3

34.5

88.9

127.0

152.4

4.0

28.3

33.4

PFA

8 x ¾“

4 x ⅝“

16.5

5“

4“

203

141.3

185.7

215.9

4.5

28.8

35.0

114.3

157.2

190.5

4.5

28.8

34.4

PTFE

8 x ¾“

8 x ⅝“

18.9

6“

3“

229

168.3

215.9

241.3

4.0

29.9

36.5

88.9

127.0

152.4

4.0

28.3

33.4

PFA

8 x ¾“

4 x ⅝“

20.2

6“

4“

229

168.3

215.9

241.3

6.0

31.9

38.5

114.3

157.2

190.5

6.0

30.3

35.9

PTFE

8 x ¾“

8 x ⅝“

22.7

6“

5“

229

168.3

215.9

241.3

6.0

31.9

38.5

141.3

185.7

215.9

6.0

30.3

36.5

PTFE

8 x ¾“

8 x ¾“

23.9

8“

4“

279

219.1

269.9

298.5

6.0

35.0

42.8

114.3

157.2

190.5

6.0

30.3

35.9

PTFE

8 x ¾“

8 x ⅝“

46.0

8“

5“

279

219.1

269.9

298.5

6.0

35.0

42.8

141.3

185.7

215.9

6.0

30.3

36.5

PTFE

8 x ¾“

8 x ¾“

51.3

8“

6“

279

219.1

269.9

298.5

6.0

35.0

42.8

168.3

215.9

241.3

6.0

31.9

38.5

PTFE

8 x ¾“

8 x ¾“

38.9

10“

5“

305

273.0

323.8

362.0

6.0

36.6

45.5

141.3

185.7

215.9

6.0

30.3

36.5

PTFE

12 x ⅞“

8 x ¾“

61.6

10“

6“

305

273.0

323.8

362.0

6.0

36.6

45.5

168.3

215.9

241.3

6.0

31.9

38.5

PTFE

12 x ⅞“

8 x ¾“

69.8

10“

8“

305

273.0

323.8

362.0

6.0

36.6

45.5

219.1

269.9

298.5

6.0

35.0

42.8

PTFE

12 x ⅞“

8 x ¾“

59.4

12“

6“

356

323.8

381.0

431.8

6.0

38.2

48.1

168.3

215.9

241.3

6.0

31.9

38.5

PTFE

12 x ⅞“

8 x ¾“

88.4

12“

8“

356

323.8

381.0

431.8

6.0

38.2

48.1

219.1

269.9

298.5

6.0

35.0

42.8

PTFE

12 x ⅞“

8 x ¾“

104.8

12“

10“

356

323.8

381.0

431.8

6.0

38.2

48.1

273.0

323.8

362.0

6.0

36.6

45.5

PTFE

12 x ⅞“

12 x ⅞“

87.4

14“

8“

406

355.6

412.8

476.3

7.5

42.9

57.5

219.1

269.9

298.5

7.5

36.5

44.3

PTFE

12 x 1“

8 x ¾“

122.1

14“

10“

406

355.6

412.8

476.3

7.5

42.9

57.5

273.0

323.8

362.0

7.5

38.1

47.0

PTFE

12 x 1“

12 x ⅞“

134.9

14“

12“

406

355.6

412.8

476.3

7.5

42.9

57.5

323.8

381.0

431.8

7.5

39.7

49.6

PTFE

12 x 1“

12 x ⅞“

121.0

16“

10“

457

406.4

469.9

539.8

7.5

44.5

59.1

273.0

323.8

362.0

7.5

38.1

47.0

PTFE

16 x 1“

12 x ⅞“

156.0

16“

12“

457

406.4

469.9

539.8

7.5

44.5

59.1

323.8

381.0

431.8

7.5

39.7

49.6

PTFE

16 x 1“

12 x ⅞“

186.8

16“

14“

457

406.4

469.9

539.8

7.5

44.5

59.1

355.6

412.8

476.3

7.5

42.9

57.5

PTFE

16 x 1“

12 x 1“

156.3

18“

10“

483

457.0

533.4

577.9

8.0

48.1

62.7

273.0

323.8

362.0

8.0

38.6

47.5

PTFE

16 x 1⅛“

12 x ⅞“

168.5

18“

12“

483

457.0

533.4

577.9

8.0

48.1

62.7

323.8

381.0

431.8

8.0

40.2

50.1

PTFE

16 x 1⅛“

12 x ⅞“

199.5

18“

14“

483

457.0

533.4

577.9

8.0

48.1

62.7

355.6

412.8

476.3

8.0

43.4

58.0

PTFE

16 x 1⅛“

12 x 1“

169.1

20“

12“

508

508.0

584.2

635.0

8.0

51.3

65.9

323.8

381.0

431.8

8.0

40.2

50.1

PTFE

20 x 1⅛“

12 x ⅞“

222.1

20“

14“

508

508.0

584.2

635.0

8.0

51.3

65.9

355.6

412.8

476.3

8.0

43.4

58.0

PTFE

20 x 1⅛“

12 x 1“

253.1

20“

16“

508

508.0

584.2

635.0

8.0

51.3

65.9

406.4

469.9

539.8

8.0

45.0

59.6

PTFE

20 x 1⅛“

16 x 1“

209.0

The nominal pipe size combinations printed in bold are manufactured in two parts with flanges fix-fix or fix-loose in which the loose flange is generally on the NPS1 side.


Different nominal pipe sizes
and total lengths on request.

L = Total length

d1 = Outer diameter of the pipe

d4 = Raised face diameter

K = Bolt circle diameter

smin = Minimum flare thickness

a1 = Minimum length with fixed flange and smin

a2 = Minimum length with loose flange and smin

Technical data valid for the pressure rating Class 150.

a1 and a2 depend on construction type and lining thickness.

NPS Lining thickness Possible vacuum
standardthick-walled23°C150°C200°C
1“ 
 
1½“ 
 
2“ 
 
3“ 
 
4“ 
 
6“ 
 
8“ 
 
10“ 
 
12“ 
 
Vacuum resistance:
= full vacuum
= limited vacuu
= no vacuum
Please refer to the next higher nominal pipe size if your nominal pipe size is not listed.