Parker RI | BSPP Reducing Adapters / Expanders

This Section contains adapters with thread types including NPT, NPTF, BSPT, BSPP, SAE UN/UNF, and Metric. All the threads in this section are made to industry specifications with conformance shown in table on the right.
Thread Standard

NPT

ANSI B1.20.1, FED-STD-H28/7

NPTF

SAE J476, ANSI B1.20.3, FED-STD-H28/8

BSPT

BS 21, ISO 7/1

BSPP

BS 2779, ISO 228/1

Metric

ISO 261, ANSI B1.13M, FED-STD-H28/21

UN/UNF*

ANSI B1.1, FED-STD-H28/2
*Class 2A or 2B

Parker Pipe Reducer, Expander, & Conversion Configurations

 Parker BSPP Reducing Adapter / Expander

 

BSPP Reducing Adapters / Expanders

Part #: RI
Manufacturer: Parker

 

BSPP / BSPP-CF
(for ISO 1179-1 / DIN 3852-2 Port)

TUBE
FITTING
PART #

END SIZE

d3
(mm)

L
(mm)

S1
(mm)

Fig.

Dynamic
Pressure
(x 1,000 PSI)

1
BSPP

2
BSPP

CF

71

MS

RI1/8X1/4CFX

1/8 - 28

1/4 - 19

14

31.0

19

B

5.8

5.8

3.3

RI1/8X3/8CFX

1/8 - 28

3/8 - 19

14

32.0

24

B

5.8

5.8

3.3

RI1/4X1/8CFX

1/4 - 19

1/8 - 28

18

28.0

19

B

5.8

5.8

3.3

RI1/4X3/8CFX

1/4 - 19

3/8 - 19

18

36.0

24

B

5.8

5.8

3.3

RI1/4X1/2CFX

1/4 - 19

1/2 - 14

18

40.0

30

B

5.8

5.8

3.3

RI1/4X3/4CFX

1/4 - 19

3/4 - 14

18

43.0

36

B

4.5

4.5

3.0

RI3/8X1/8CFX

3/8 - 19

1/8 - 28

22

22.5

22

A

5.8

5.8

3.3

RI3/8X1/4CFX

3/8 - 19

1/4 - 19

22

36.0

22

B

5.8

5.8

3.3

RI3/8X1/2CFX

3/8 - 19

1/2 - 14

22

41.0

30

B

5.8

5.8

3.3

RI3/8X3/4CFX

3/8 - 19

3/4 - 14

22

44.0

36

B

4.5

4.5

3.0

RI1/2X1/8CFX

1/2 - 14

1/8 - 28

26

24.0

27

A

5.8

5.8

3.3

RI1/2X1/4CFX

1/2 - 14

1/4 - 19

26

24.0

27

A

4.5

4.5

3.0

RI1/2X3/8CFX

1/2 - 14

3/8 - 19

26

36.0

27

B

4.5

4.5

3.0

RI1/2X3/4CFX

1/2 - 14

3/4 - 14

26

46.0

36

B

4.5

4.5

3.0

RI1/2X1CFX

1/2 - 14

1 - 11

26

49.0

41

B

2.3

2.3

1.5

RI1/2X11/4CFX

1/2 - 14

1 1/4 - 11

26

53.0

55

B

4.5

4.5

3.0

RI3/4X1/4CFX

3/4 - 14

1/4 - 19

32

26.0

32

A

4.5

4.5

3.0

RI3/4X3/8CFX

3/4 - 14

3/8 - 19

32

26.0

32

A

4.5

4.5

3.0

RI3/4X1/2CFX

3/4 - 14

1/2 - 14

32

41.0

32

B

4.5

4.5

3.0

RI3/4X1CFX

3/4 - 14

1 - 11

32

51.0

41

B

2.3

2.3

1.5

RI3/4X11/4CFX

3/4 - 14

1 1/4 - 11

32

55.0

55

B

2.3

2.3

1.5

RI3/4X11/2CFX

3/4 - 14

1 1/2 - 11

32

57.0

60

B

4.5

4.5

3.0

RI1X1/4CFX

1 - 11

1/4 - 19

39

29.0

41

A

4.5

4.5

3.0

RI1X3/8CFX

1 - 11

3/8 - 19

39

29.0

41

A

4.5

4.5

3.0

RI1X1/2CFX

1 - 11

1/2 - 14

39

29.0

41

A

4.5

4.5

3.0

RI1X3/4CFX

1 - 11

3/4 - 14

39

47.0

41

B

2.3

2.3

1.5

RI1X11/4CFX

1 - 11

1 1/4 - 11

39

57.0

55

B

2.3

2.3

1.5

RI1X11/2CFX

1 - 11

1 1/2 - 11

39

59.0

60

B

2.3

2.3

1.5

RI11/4X1/2CFX

1 1/4 - 11

1/2 - 14

49

32.0

50

A

2.3

2.3

1.5

RI11/4X3/4CFX

1 1/4 - 11

3/4 - 14

49

32.0

50

A

2.3

2.3

1.5

RI11/4X1CFX

1 1/4 - 11

1 - 11

49

52.0

50

B

2.3

2.3

1.5

RI11/4X11/2CFX

1 1/4 - 11

1 1/2 - 11

49

60.0

60

B

2.3

2.3

1.5

RI11/2X1/2CFX

1 1/2 - 11

1/2 - 14

55

36.0

55

A

2.3

2.3

1.5

RI11/2X3/4CFX

1 1/2 - 11

3/4 - 14

55

36.0

55

A

2.3

2.3

1.5

RI11/2X1CFX

1 1/2 - 11

1 - 11

55

36.0

55

A

2.3

2.3

1.5

RI11/2X11/4CFX

1 1/2 - 11

1 1/4 - 11

55

58.0

55

B

2.3

2.3

1.5

RI2X11/2CFX

2 - 11

1 1/2 - 11

68

62.0

70

B

2.3

2.3

1.5