Reducers for Pharmaceutical and Biotech

Central States Industrial (CSI) keeps an extensive stock of ASME-BPE compliant fittings for a short order turnaround.

Reducers are available that meet 2019 ASME-BPE standard. CSI also stocks the older, longer version under the 2012 standard. Call CSI for additional reducers for biopharmaceutical applications. For applications that require 3-A sanitary standards, CSI stocks Reducers for Food, Dairy, & Beverage. We also offer AL-6XN® Alloy Reducers and Hastelloy® C-22® Reducers for more corrosion resistance.

Models

These items are manufactured in compliance with the current revision of the ASME-BPE Standards.

Sanitary Reducers For Pharmaceutical and Biotech
Reducers for Pharmaceutical and Biotech
Concentric Butt Weld Reducers, 2019 BPE C31-Size-Material-Finish
316L Material Part #
(PL finish)		316L Material Part #
(PM finish)		Size OD
(in)		A
(in)
C31-0.375x0.25-316L-PLC31-0.375X0.25-316L-PM⅜ x ¼1.625
C31-0.5X0.25-316L-PLC31-0.5X0.25-316L-PM½ x ¼1.875
C31-0.5X0.375-316L-PLC31-0.5X0.375-316L-PM½ x ⅜1.875
C31-0.75X0.375-316L-PLC31-0.75X0.375-316L-PM¾ x ⅜2.000
C31-0.75X0.5-316L-PLC31-0.75X0.5-316L-PM¾ x ½2.125
C31-1X0.5-316L-PLC31-1X0.5-316L-PM1 x ½2.500
C31-1X0.75-316L-PLC31-1X0.75-316L-PM1 x ¾2.125
C31-1.5X0.75-316L-PLC31-1.5X0.75-316L-PM1½ x ¾3.000
C31-1.5X1-316L-PLC31-1.5X1-316L-PM1½ x 12.500
C31-2X1-316L-PLC31-2X1-316L-PM2 x 13.375
C31-2X1.5-316L-PLC31-2X1.5-316L-PM2 x 1½2.500
C31-2.5X1.5-316L-PLC31-2.5X1.5-316L-PM2½ x 1½3.375
C31-2.5X2-316L-PLC31-2.5X2-316L-PM2½ x 22.500
C31-3X1.5-316L-PLC31-3X1.5-316L-PM3 x 1½4.250
C31-3X2-316L-PLC31-3X2-316L-PM3 x 23.375
C31-3X2.5-316L-PLC31-3X2.5-316L-PM3 x 2½2.625
C31-4X2-316L-PLC31-4X2-316L-PM4 x 25.125
C31-4X2.5-316L-PLC31-4X2.5-316L-PM4 x 2½7.087
C31-4X3-316L-PLC31-4X3-316L-PM4 x 33.875
C31-6X3-316L-PLC31-6X3-316L-PM6 x 37.250
C31-6X4-316L-PLC31-6X4-316L-PM6 x 45.625
B31
BPE DT-4.1.3-1
Eccentric Butt Weld Reducers, 2019 BPE C32-Size-Material-Finish
316L Material Part #
(PL finish)		316L Material Part #
(PM finish)		Size OD
(in)		A
(in)
C32-0.375X0.25-316L-PLC32-0.375X0.25-316L-PM⅜ x ¼1.626
 
C32-0.5X0.25-316L-PLC32-0.5X0.25-316L-PM½ x ¼1.831
C32-0.5X0.375-316L-PLC32-0.5X0.375-316L-PM½ x ⅜1.831
C32-0.75X0.375-316L-PLC32-0.75X0.375-316L-PM¾ x ⅜2.000
C32-0.75X0.5-316L-PLC32-0.75X0.5-316L-PM¾ x ½2.126
C32-1X0.5-316L-PLC32-1X0.5-316L-PM1 x ½2.500
C32-1X0.75-316L-PLC32-1X0.75-316L-PM1 x ¾2.126
C32-1.5X0.75-316L-PLC32-1.5X0.75-316L-PM1½ x ¾3.000
C32-1.5X1-316L-PLC32-1.5X1-316L-PM1½ x 12.500
C32-2X1-316L-PLC32-2X1-316L-PM2 x 13.378
C32-2X1.5-316L-PLC32-2X1.5-316L-PM2 x 1½2.500
C32-2.5X1.5-316L-PLC32-2.5X1.5-316L-PM2½ x 1½3.375
C32-2.5X2-316L-PLC32-2.5X2-316L-PM2½ x 22.500
C32-3X1.5-316L-PLC32-3X1.5-316L-PM3 x 1½4.252
C32-3X2-316L-PLC32-3X2-316L-PM3 x 23.378
C32-3X2.5X-316L-PLC32-3X2.5-316L-PM3 x 2½2.626
C32-4X2-316L-PLC32-4X2-316L-PM4 x 25.126
C32-4X2.5-316L-PLC32-4X2.5-316L-PM4 x 2½7.087
C32-4X3-316L-PLC32-4X3-316L-PM4 x 33.874
C32-6X3-316L-PLC32-6X3-316L-PM6 x 37.252
C32-6X4-316L-PLC32-6X4-316L-PM6 x 45.626
C32-Reducer
BPE DT-4.1.3-1
Tri-Clamp X Butt Weld Concentric Reducers, 2019 BPEC31M-Size-Material-Finish
316L Material Part #
(PL finish)		316L Material Part #
(PM finish)		Size OD
(in)		A
(in)
C31M-1X0.5-316L-PLC31M-1X0.5-316L-PM1 x ½3.000
C31M-1X0.75-316L-PLC31M-1X0.75-316L-PM1 x ¾2.626
C31M-1.5X0.75-316L-PLC31M-1.5X0.75-316L-PM1½ x ¾3.500
C31M-1.5X1-316L-PLC31M-1.5X1-316L-PM1½ x 13.000
C31M-2X1-316L-PLC31M-2X1-316L-PM2 x 13.874
C31M-2X1.5-316L-PLC31M-2X1.5-316L-PM2 x 1½3.000
C31M-2.5X1.5-316L-PLC31M-2.5X1.5-316L-PM2½ x 1½3.875
C31M-2.5X2-316L-PL
 		C31M-2.5X2-316L-PM2½ x 23.000
 
C31M-3X1.5-316L-PLC31M-3X1.5-316L-PM3 x 1½4.752
C31M-3X2-316L-PLC31M-3X2-316L-PM3 x 23.878
C31M-3X2.5-316L-PLC31M-3X2.5-316L-PM3 x 2½3.126
C31M-4X2-316L-PLC31M-4X2-316L-PM4 x 25.752
C31M-4X2.5-316L-PLC31M-4X2.5-316L-PM4 x 2½4.878
C31M-4X3-316L-PLC31M-4X3-316L-PM4 x 34.500
C31M-6X3-316L-PLC31M-6X3-316L-PM6 x 38.000
C31M-6X4-316L-PLC31M-6X4-316L-PM6 x 46.374
C31M
BPE DT-4.1.3-2
Tri-Clamp X Butt Weld Eccentric Reducers, 2019 BPEC32M-Size-Material-Finish
316L Material Part #
(PL finish)		316L Material Part #
(PM finish)		Size OD
(in)		A
(in)
C31M-0.75X0.5-316L-PLC32M-0.75X0.5-316L-PM¾ x ½2.626
C32M-1X0.5-316L-PLC32M-1X0.5-316L-PM1 x ½3.000
C32M-1X0.75-316L-PLC32M-1X0.75-316L-PM1 x ¾2.626
C32M-1.5X0.75-316L-PLC32M-1.5X0.75-316L-PM1½ x ¾3.500
C32M-1.5X1-316L-PLC32M-1.5X1-316L-PM1½ x 13.000
C32M-2X1-316L-PLC32M-2X1-316L-PM2 x 13.874
C32M-2X1.5-316L-PLC32M-2X1.5-316L-PM2 x 1½3.000
C32M-2.5X1.5-316L-PLC32M-2.5X1.5-316L-PM2½ x 1½3.875
C32M-2.5X2-316L-PL
 		C32M-2.5X2-316L-PM2½ x 23.000
 
C32M-3X1.5-316L-PLC32M-3X1.5-316L-PM3 x 1½4.752
C32M-3X2-316L-PLC32M-3X2-316L-PM3 x 23.878
C32M-3X2.5-316L-PLC32M-3X2.5-316L-PM3 x 2½3.126
C32M-4X2-316L-PLC32M-4X2-316L-PM4 x 25.752
C32M-4X2.5-316L-PLC32M-4X2.5-316L-PM4 x 2½4.878
C32M-4X3-316L-PLC32M-4X3-316L-PM4 x 34.500
C32M-6X3-316L-PLC32M-6X3-316L-PM6 x 38.000
C32M-6X4-316L-PLC32M-6X4-316L-PM6 x 46.374
C32M
BPE DT-4.1.3-2
Eccentric Butt Weld Reducers, 2009 BPEB32-Size-Material-Finish
316L Material Part #
(PL finish)		316L Material Part #
(PM finish)		Size OD
(in)		A
(in)
B32-0.75X0.5-316L-PLB32-0.75X0.5-316L-PM¾ x ½4.00
B32-1X0.5-316L-PLB32-1X0.5-316L-PM1 x ½4.50
B32-1X0.75-316L-PLB32-1X0.75-316L-PM1 x ¾4.00
B32-1.5X0.5-316L-PLB32-1.5X0.5-316L-PM1½ x ½5.50
B32-1.5X0.75-316L-PLB32-1.5X0.75-316L-PM1½ x ¾5.00
B32-1.5X1-316L-PLB32-1.5X1-316L-PM1½ x 15.00
B32-2X1-316L-PLB32-2X1-316L-PM2 x 17.25
B32-2X1.5-316L-PLB32-2X1.5-316L-PM2 x 1½5.25
B32-2.5X1.5-316L-PLB32-2.5X1.5-316L-PM2½ x 1½7.25
B32-2.5X2-316L-PLB32-2.5X2-316L-PM2½ x 25.50
B32-3X1.5-316L-PLB32-3X1.5-316L-PM3 x 1½9.25
B32-3X2-316L-PLB32-3X2-316L-PM3 x 27.50
B32-3X2.5-316L-PLB32-3X2.5-316L-PM3 x 2½5.50
B32-4X2-316L-PLB32-4X2-316L-PM4 x 211.75
B32-4X2.5-316L-PLB32-4X2.5-316L-PM4 x 2½9.75
B32-4X3-316L-PLB32-4X3-316L-PM4 x 37.75
B32-6X3-316L-PLB32-6X4-316L-PM6 x 310.00
B32-6X4-316L-PLB32-6X4-316L-PM6 x 410.00
B32
Concentric Tri-Clamp X Butt Weld Reducers, 2009 BPEB31M-Size-Material-Finish
316L Material Part #
(PL finish)		316L Material Part #
(PM finish)		Size OD
(in)		A
(in)
B31M-0.75X0.5-316L-PLB31M-0.75X0.5-316L-PM¾ x ½3.00
B31M-1X0.5-316L-PLB31M-1X0.5-316L-PM1 x ½3.50
B31M-1X0.75-316L-PLB31M-1X0.75-316L-PM1 x ¾3.00
B31M-1.5X0.5-316L-PLB31M-1.5X0.5-316L-PM1½ x ½4.50
B31M-1.5X0.75-316L-PLB31M-1.5X0.75-316L-PM1½ x ¾4.00
B31M-1.5X1-316L-PLB31M-1.5X1-316L-PM1½ x 14.00
B31M-2X1-316L-PLB31M-2X1-316L-PM2 x 16.00
B31M-2X1.5-316L-PLB31M-2X1.5-316L-PM2 x 1½4.00
B31M-2.5X1.5-316L-PLB31M-2.5X1.5-316L-PM2½ x 1½6.00
B31M-2.5X2-316L-PLB31M-2.5X2-316L-PM2½ x 24.25
B31M-3X1.5-316L-PLB31M-3X1.5-316L-PM3 x 1½8.00
B31M-3X2-316L-PLB31M-3X2-316L-PM3 x 26.25
B31M-3X2.5-316L-PLB31M-3X2.5-316L-PM3 x 2½4.25
B31M-4X2-316L-PLB31M-4X2-316L-PM4 x 210.38
B31M-4X2.5-316L-PLB31M-4X2.5-316L-PM4 x 2½8.38
B31M-4X3-316L-PLB31M-4X3-316L-PM4 x 36.38
B31M
Eccentric Tri-Clamp X Butt Weld Reducers, 2009 BPEB32M-Size-Material-Finish
316L Material Part #
(PL finish)		316L Material Part #
(PM finish)		Size OD
(in)		A
(in)
B32M-0.75X0.5-316L-PLB32M-0.75X0.5-316L-PM¾ x ½3.00
B32M-1X0.5-316L-PLB32M-1X0.5-316L-PM1 x ½3.50
B32M-1X0.75-316L-PLB32M-1X0.75-316L-PM1 x ¾3.00
B32M-1.5X0.5-316L-PLB32M-1.5X0.5-316L-PM1½ x ½4.50
B32M-1.5X0.75-316L-PLB32M-1.5X0.75-316L-PM1½ x ¾4.00
B32M-1.5X1-316L-PLB32M-1.5X1-316L-PM1½ x 14.00
B32M-2X1-316L-PLB32M-2X1-316L-PM2 x 16.00
B32M-2X1.5-316L-PLB32M-2X1.5-316L-PM2 x 1½4.00
B32M-2.5X1.5-316L-PLB32M-2.5X1.5-316L-PM2½ x 1½6.00
B32M-2.5X2-316L-PLB32M-2.5X2-316L-PM2½ x 24.25
B32M-3X1.5-316L-PLB32M-3X1.5-316L-PM3 x 1½8.00
B32M-3X2-316L-PLB32M-3X2-316L-PM3 x 26.25
B32M-3X2.5-316L-PLB32M-3X2.5-316L-PM3 x 2½4.25
B32M-4X2-316L-PLB32M-4X2-316L-PM4 x 210.38
B32M-4X2.5-316L-PLB32M-4X2.5-316L-PM4 x 2½8.38
B32M-4X3-316L-PLB32M-4X3-316L-PM4 x 36.38
B32M
Concentric Tri-Clamp® Reducers, 2009 BPEB31-14MP-Size-Material-Finish
316L Material Part #
(PL finish)		316L Material Part #
(PM finish)		Size OD
(in)		A
(in)
B31-14MP-0.75X0.5-316L-PLB31-14MP-0.75X0.5-316L-PM¾ x ½2.00
B31-14MP-1X0.5-316L-PLB31-14MP-1X0.5-316L-PM1 x ½2.50
B31-14MP-1X0.75-316L-PLB31-14MP-1X0.75-316L-PM1 x ¾2.00
B31-14MP-1.5X0.5-316L-PLB31-14MP-1.5X0.5-316L-PM1½ x ½3.50
B31-14MP-1.5X0.75-316L-PLB31-14MP-1.5X0.75-316L-PM1½ x ¾3.00
B31-14MP-1.5X1-316L-PLB31-14MP-1.5X1-316L-PM1½ x 13.00
B31-14MP-2X0.75-316L-PLB31-14MP-2X0.75-316L-PM2 x ¾5.00
B31-14MP-2X1-316L-PLB31-14MP-2X1-316L-PM2 x 15.00
B31-14MP-2X1.5-316L-PLB31-14MP-2X1.5-316L-PM2 x 1½3.00
B31-14MP-2.5X1.5-316L-PLB31-14MP-2.5X1.5-316L-PM2½ x 1½5.00
B31-14MP-2.5X2-316L-PLB31-14MP-2.5X2-316L-PM2½ x 23.00
B31-14MP-3X1.5-316L-PLB31-14MP-3X1.5-316L-PM3 x 1½7.00
B31-14MP-3X2-316L-PLB31-14MP-3X2-316L-PM3 x 25.00
B31-14MP-3X2.5-316L-PLB31-14MP-3X2.5-316L-PM3 x 2½3.00
B31-14MP-4X2-316L-PLB31-14MP-4X2-316L-PM4 x 29.13
B31-14MP-4X2.5-316L-PLB31-14MP-4X2.5-316L-PM4 x 2½9.13
B31-14MP-4X3-316L-PLB31-14MP-4X3-316L-PM4 x 35.13
B31-14MP-6X3-316L-PLB31-14MP-6X3-316L-PM6 x 36.88
B31-14MP-6X4-316L-PLB31-14MP-6X4-316L-PM6 x 47.00
B31-14MP
Eccentric Tri-Clamp Reducers, 2009 BPEB32-14MP-Size-Material-Finish
316L Material Part #
(PL finish)		316L Material Part #
(PM finish)		Size OD
(in)		A
(in)
B32-14MP-0.75X0.5-316L-PLB32-14MP-0.75X0.5-316L-PM¾ x ½2.00
B32-14MP-1X0.5-316L-PLB32-14MP-1X0.5-316L-PM1 x ½2.50
B32-14MP-1X0.75-316L-PLB32-14MP-1X0.75-316L-PM1 x ¾2.00
B32-14MP-1.5X0.5-316L-PLB32-14MP-1.5X0.5-316L-PM1½ x ½3.50
B32-14MP-1.5X0.75-316L-PLB32-14MP-1.5X0.75-316L-PM1½ x ¾3.00
B32-14MP-1.5X1-316L-PLB32-14MP-1.5X1-316L-PM1½ x 13.00
B32-14MP-2X1-316L-PLB32-14MP-2X1-316L-PM2 x 15.00
B32-14MP-2X1.5-316L-PLB32-14MP-2X1.5-316L-PM2 x 1½3.00
B32-14MP-2.5X1.5-316L-PLB32-14MP-2.5X1.5-316L-PM2½ x 1½5.00
B32-14MP-2.5X2-316L-PLB32-14MP-2.5X2-316L-PM2½ x 23.00
B32-14MP-3X1.5-316L-PLB32-14MP-3X1.5-316L-PM3 x 1½7.00
B32-14MP-3X2-316L-PLB32-14MP-3X2-316L-PM3 x 25.00
B32-14MP-3X2.5-316L-PLB32-14MP-3X2.5-316L-PM3 x 2½3.00
B32-14MP-4X2-316L-PLB32-14MP-4X2-316L-PM4 x 29.13
B32-14MP-4X2.5-316L-PLB32-14MP-4X2.5-316L-PM4 x 2½7.13
B32-14MP-4X3-316L-PLB32-14MP-4X3-316L-PM4 x 35.13
B32-14MP-6X3-316L-PLB32-14MP-6X3-316L-PM6 x 37.63
B32-14MP-6X4-316L-PLB32-14MP-6X4-316L-PM6 x 47.63
B32-14MP

Conical Instrument Reducers

CSI offers conical instrument/gauge reducers for instances where standard reducers won't work due to confined space.

Applications

  • Instrumentation and gauge placement
  • Tightly confined spaces such as skids and load cells
More Reducers

For reducers that meet 3-A sanitary standards, visit Reducers for Food, Dairy, & Beverage. Need a more corrosion resistant reducer? Check out the AL-6XN Alloy Reducers and Hastelloy C-22 Reducers pages for additional material options.

Still don't see what you need? Call CSI for configurations not listed or for custom fabrications.

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