Tri-Clamp Concentric Reducers (31-14MP)

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Description

Reduce sanitary tri-clamp connection from one size to another (3114MP).

Stainless steel concentric clamp reducers allow for the connection of tubing of various sizes. Available in 304 and 316 stainless steel alloys. Unlike the eccentric clamp reducer, this product may cause pooling in process line fittings. Tri-Clamp style connections offer a quick and easy way to disassemble line processing for access to process media and cleaning solutions. The product is 3A certified for sanitary-grade line processing equipment in the food and beverage industry. Material Test Reports (MTRs) available upon request.

Clamp Concentric Reducers Part Numbers & Dimensions

Part Number Cross Reference
Sanitary Fittings Bradford Alfa Laval Waukesha Cherry VNE Top Line Andron®
3114MP B3114MP 31-14MP 31-14MP EG31CC 31-14MP AC31
Tri-Clamp Concentric Reducer Dimensions PDF Tri-Clamp Concentric Reducer Detailed Line Drawing
PART # A A WALL B B WALL C Line Drawing
31-14MP-.75X.50 .75 [19.05mm] 0.065 0.50 [12.70mm] 0.065 2.000 PDF
31-14MP-1X.50 1.0 [25.40mm] 0.065 0.50 [12.70mm] 0.065 3.000 PDF
31-14MP-1X.75 1.0 [25.40mm] 0.065 0.75 [19.05mm] 0.065 2.000 PDF
31-14MP-15X.50 1.5 [38.10mm] 0.065 0.50 [12.70mm] 0.065 5.000 PDF
31-14MP-15X.75 1.5 [38.10mm] 0.065 0.75 [19.05mm] 0.065 4.000 PDF
31-14MP-15X.75X3 1.5 [38.10mm] 0.065 0.75 [19.05mm] 0.065 3.000 PDF
31-14MP-15X1 1.5 [38.10mm] 0.065 1.0 [25.40mm] 0.065 3.000 PDF
31-14MP-2X.50 2.0 [50.80mm] 0.065 0.50 [12.70mm] 0.065 5.500 PDF
31-14MP-2X.75 2.0 [50.80mm] 0.065 0.75 [12.70mm] 0.065 5.000 PDF
31-14MP-2X1 2.0 [50.80mm] 0.065 1.0 [25.40mm] 0.065 5.000 PDF
31-14MP-2X15 2.0 [50.80mm] 0.065 1.5 [38.10mm] 0.065 3.000 PDF
31-14MP-25X1 2.5 [63.50mm] 0.065 1.0 [25.40mm] 0.065 7.000 PDF
31-14MP-25X15 2.5 [63.50mm] 0.065 1.5 [38.10mm] 0.065 5.000 PDF
31-14MP-25X2 2.5 [63.50mm] 0.065 2.0 [50.80mm] 0.065 3.000 PDF
31-14MP-3X.50 3.0 [76.20mm] 0.065 0.50 [12.70mm] 0.065 11.000 PDF
31-14MP-3X1 3.0 [76.20mm] 0.065 1.0 [25.40mm] 0.065 9.000 PDF
31-14MP-3X15 3.0 [76.20mm] 0.065 1.5 [38.10mm] 0.065 7.000 PDF
31-14MP-3X2 3.0 [76.20mm] 0.065 2.0 [50.80mm] 0.065 5.000 PDF
31-14MP-3X25 3.0 [76.20mm] 0.065 2.5 [63.50mm] 0.065 3.000 PDF
31-14MP-4X1 4.0 [101.60mm] 0.083 1.0 [25.40mm] 0.065 13.125 PDF
31-14MP-4X15 4.0 [101.60mm] 0.083 1.5 [38.10mm] 0.065 11.125 PDF
31-14MP-4X2 4.0 [101.60mm] 0.083 2.0 [50.80mm] 0.065 9.125 PDF
31-14MP-4X25 4.0 [101.60mm] 0.083 2.5 [63.50mm] 0.065 7.125 PDF
31-14MP-4X3 4.0 [101.60mm] 0.083 3.0 [76.20mm] 0.065 5.125 PDF
31-14MP-6X3 6.0 [152.40mm] 0.109 3.0 [76.20mm] 0.065 6.75 PDF
31-14MP-6X4 6.0 [152.40mm] 0.109 4.0 [101.60mm] 0.083 6.875 PDF
31-14MP-8X4 8.0 [203.20mm] 0.109 4.0 [101.60mm] 0.083 7.500 PDF
31-14MP-8X6 8.0 [203.20mm] 0.109 6.0 [101.60mm] 0.083 7.500 PDF

Watch How to Measure Tri-Clamp Fittings

Tri-Clamp Fittings and Gasket Sizing Guide

Sanitary Fitting Dimensions
Sanitary Size Flange OD ( ? ) ID of Tube ( ? ) OD of Tube ( ? )
1/2″ 0.984 0.370 0.500
3/4″ 0.984 0.620 0.750
1″ 1.984 0.870 1.000
1 1/2″ 1.984 1.370 1.500
2″ 2.516 1.870 2.000
2 1/2″ 3.047 2.370 2.500
3″ 3.579 2.870 3.000
4″ 4.682 3.834 4.000
6″ 6.570 5.782 6.000
8″ 8.570 7.782 8.000
10″ 10.570 9.782 10.000
12″ 12.570 11.760 12.000

Frequently Asked Questions

Read our guide to Frequently Asked Questions about Tri-Clamp Fittings
Additional Part Numbers 31-14MP-1.5X.75X4-316 3114MP4-150100 3114MP4-200050 3114MP4-200075 3114MP4-200100 3114MP4-200150 3114MP4-250150 3114MP4-250200 3114MP4-300100 3114MP4-300150 3114MP4-300200 3114MP4-300250 3114MP4-400100 3114MP4-400150 3114MP4-400200 3114MP4-400250 3114MP4-400300 3114MP4-600200 3114MP4-600300 3114MP4-600400 3114MP4-800300 3114MP4-800400 3114MP4-800600 3114MP6-075050 3114MP6-100050 3114MP6-100075 3114MP6-1000800 3114MP6-12001000 3114MP6-150050 3114MP6-150075 3114MP6-150100 3114MP6-200050 3114MP6-200075 3114MP6-200100 3114MP6-200150 3114MP6-250150 3114MP6-250200 3114MP6-300100 3114MP6-300150 3114MP6-300200 3114MP6-300250 3114MP6-400100 3114MP6-400150 3114MP6-400200 3114MP6-400250 3114MP6-400300 3114MP6-600200 3114MP6-600300 3114MP6-600400 3114MP6-800300 3114MP6-800400 3114MP6-800600 31-14MP-8X6-316 31-14MP-1X.75-316 31-14MP-1.5X.50-316 31-14MP-1.5X.75X4-316 31-14MP-1.5X1-304 31-14MP-1.5X1-316 31-14MP-2X.50-316 31-14MP-2X.75-316 31-14MP-2X1-304 31-14MP-2X1-316 31-14MP-2X1.5-304 31-14MP-2X1.5-316 31-14MP-.75X.50-316 31-14MP-1X.50-316 31-14MP-2.5X1.5-304 31-14MP-2.5X1.5-316 31-14MP-2.5X2-304 31-14MP-2.5X2-316 31-14MP-3X1-304 31-14MP-3X1-316 31-14MP-3X1.5-304 31-14MP-3X1.5-316 31-14MP-3X2-304 31-14MP-3X2-316 31-14MP-3X2.5-304 31-14MP-3X2.5-316 31-14MP-4X1-304 31-14MP-4X1-316 31-14MP-4X1.5-304 31-14MP-4X1.5-316 31-14MP-4X2-304 31-14MP-4X2-316 31-14MP-4X2.5-304 31-14MP-4X2.5-316 31-14MP-4X3-304 31-14MP-4X3-316 31-14MP-6X2-304 31-14MP-6X2-316 31-14MP-6X3-304 31-14MP-6X3-316 31-14MP-6X4-304 31-14MP-6X4-316 31-14MP-8X6-316 31-14MP-8X4-316 31-14MP-8X3-316 31-14MP-10X8-316 31-14MP-2.5X1-304 31-14MP-2.5X1-316

Line Drawings

SKUDescriptionLine Drawing
31-14MP-.75X.50-316

3/4″ X 1/2″ Clamp Concentric Reducer – 316L

PDF
31-14MP-1.5X.50-316

1-1/2″ x 1/2″ Clamp Concentric Reducer – 316L

PDF
31-14MP-1.5X.75X4-316

1-1/2″ x 3/4″ Tri-Clamp Concentric Reducer, 4″ OAL, 316L

PDF
31-14MP-1.5X1-304

1-1/2″ x 1″ Clamp Concentric Reducer – 304

PDF
31-14MP-1.5X1-316

1-1/2″ x 1″ Clamp Concentric Reducer – 316L

PDF
31-14MP-10X3X13.875-316

10″ x 3″ x 13.875″ OAL Tri-Clamp Concentric Reducer, 316L

Request Line Drawing
31-14MP-10X6-316

10″ x 6″ Tri-Clamp Concentric Reducer, 316L

PDF
31-14MP-10X8-316

10″ x 8″ Tri-Clamp Concentric Reducer, 316

PDF
31-14MP-12X8-316

12″ x 8″ Tri-Clamp Concentric Reducer, 316L

PDF
31-14MP-1X.50-316

1″ x 1/2″ Clamp Concentric Reducer – 316L

PDF
31-14MP-1X.75-316

1″ x 3/4″ Clamp Concentric Reducer – 316L

PDF
31-14MP-2.5X1-304

2 1/2″ x 1″ Tri-Clamp Concentric Reducer, 304

PDF
31-14MP-2.5X1-316

2 1/2″ x 1″ Tri-Clamp Concentric Reducer, 316

PDF
31-14MP-2.5X1.5-304

2-1/2″ x 1-1/2″ Clamp Concentric Reducer – 304

PDF
31-14MP-2.5X1.5-316

2-1/2″ x 1-1/2″ Clamp Concentric Reducer – 316L

PDF
31-14MP-2.5X2-304

2-1/2″ x 2″ Clamp Concentric Reducer – 304

PDF
31-14MP-2.5X2-316

2-1/2″ x 2″ Clamp Concentric Reducer – 316L

PDF
31-14MP-2X.50-316

2″ x 1/2″ Clamp Concentric Reducer – 316L

PDF
31-14MP-2X.75-316

2″ x 3/4″ Clamp Concentric Reducer – 316L

PDF
31-14MP-2X1-304

2″ x 1″ Clamp Concentric Reducer – 304

PDF
31-14MP-2X1-316

2″ x 1″ Clamp Concentric Reducer – 316L

PDF
31-14MP-2X1.5-304

2″ x 1-1/2″ Clamp Concentric Reducer – 304

PDF
31-14MP-2X1.5-316

2″ x 1-1/2″ Clamp Concentric Reducer – 316L

PDF
31-14MP-3X1-304

3″x 1″ Clamp Concentric Reducer – 304

PDF
31-14MP-3X1-316

3″x 1″ Clamp Concentric Reducer – 316L

PDF
31-14MP-3X1.5-304

3″x 1-1/2″ Clamp Concentric Reducer – 304

PDF
31-14MP-3X1.5-316

3″x 1-1/2″ Clamp Concentric Reducer – 316L

PDF
31-14MP-3X2-304

3″ x 2″ Clamp Concentric Reducer – 304

PDF
31-14MP-3X2-316

3″ x 2″ Clamp Concentric Reducer – 316L

PDF
31-14MP-3X2.5-304

3″ x 2-1/2″ Clamp Concentric Reducer – 304

PDF
31-14MP-3X2.5-316

3″ x 2-1/2″ Clamp Concentric Reducer – 316L

PDF
31-14MP-4X1-304

4″ x 1″ Clamp Concentric Reducer – 304

PDF
31-14MP-4X1-316

4″ x 1″ Clamp Concentric Reducer – 316L

PDF
31-14MP-4X1.5-304

4″ x 1-1/2″ Clamp Concentric Reducer – 304

PDF
31-14MP-4X1.5-316

4″ x 1-1/2″ Clamp Concentric Reducer – 316L

PDF
31-14MP-4X2-304

4″ x 2″ Clamp Concentric Reducer – 304

PDF
31-14MP-4X2-316

4″ x 2″ Clamp Concentric Reducer – 316L

PDF
31-14MP-4X2.5-304

4″ x 2-1/2″ Clamp Concentric Reducer – 304

PDF
31-14MP-4X2.5-316

4″ x 2-1/2″ Clamp Concentric Reducer – 316L

PDF
31-14MP-4X3-304

4″ x 3″ Clamp Concentric Reducer – 304

PDF
31-14MP-4X3-316

4″ x 3″ Clamp Concentric Reducer – 316L

PDF
31-14MP-6X2-304

6″ x 2″ Clamp Concentric Reducer – 304

PDF
31-14MP-6X2-316

6″ x 2″ Clamp Concentric Reducer – 316L

PDF
31-14MP-6X3-304

6″ x 3″ Clamp Concentric Reducer – 304

PDF
31-14MP-6X3-316

6″ x 3″ Clamp Concentric Reducer – 316L

PDF
31-14MP-6X4-304

6″ x 4″ Clamp Concentric Reducer – 304

PDF
31-14MP-6X4-316

6″ x 4″ Clamp Concentric Reducer – 316L

PDF
31-14MP-8X3-316

8″ x 3″ Tri-Clamp Concentric Reducer, 316L

PDF
31-14MP-8X4-316

8″ x 4″ Tri Clamp Concentric Reducer, 316L

PDF
31-14MP-8X6-316

8″ x 6″ Clamp Concentric Reducer – 316L

PDF

Reviews

Questions & Answers 11

    I'm looking at the 2" - 0.75" reducer and need to know the flange size for the 0.75" side. I currently have 0.75" connections that use a true sized clamp and not the same clamp size as a 1" or 1.5" flange. I cannot tell by your cut sheet which clamp is used on your part.
  1. Q I'm looking at the 2" - 0.75" reducer and need to know the flange size for the 0.75" side. I curr...... Read more
    A

    The 3/4" Sanitary Fitting flange has an outside diameter of 0.992".  For additional information please see our Sanitary Fittings Dimensions Guide.

  2. I plan to have the following application and I have a question in regards: one end of the reducer will be attached to a tank, the other end to a dispensing tube. After dispense, the reducer will be removed and the tank will be closed (using a blank). Is there a recommended number of uses for the reducers in this application? Is there a recommended time period for replacing the reducers?
  3. Q I plan to have the following application and I have a question in regards: one end of the reducer...... Read more
    A As long as the reducers are kept in a clean manner and stored properly they should last a lifetime. Really, the only cause for concern would be the flange faces, taking care not to damage them by dropping them. This could potentially dent the face and make for a leaking connection.
  4. I am looking for 5" x 2" cone reducer. 3A speck
  5. Q I am looking for 5" x 2" cone reducer. 3A speck
    A For the tri-clamp concentric reducer, the closest size we can offer is 6" x 2" or 4" x 2".
  6. Do have offer Material Test Reports for these products? Is there an additional charge for this?
  7. Q Do have offer Material Test Reports for these products? Is there an additional charge for this?
    A Yes, we do offer Material Test Reports with all of our fittings. These are available upon request so if you need them, please let us know. Also, these MTRs are available free of charge.
  8. What’s the difference between concentric and eccentric stainless steel?
  9. Q What’s the difference between concentric and eccentric stainless steel?
    A The shape of the fitting is the only difference between these two styles of fittings. Concentric reducers are in the shape of a cone when viewed from the side. Eccentric reducers will have one side slanted similar to the concentric reducer with the other side being completely flat. Eccentric reducers are used in cases where the process line is required to drain entirely.
  10. What is the surface finish (inside & outside) of these reducers?
  11. Q What is the surface finish (inside & outside) of these reducers?
    A The surface finish of these tri-clamp concentric reducers is 32Ra both inside and outside. We have other surface finishes available in our BPE Fittings section.
  12. What is the "A" Dimension for 3114MP6-1200800?
  13. Q What is the "A" Dimension for 3114MP6-1200800?
    A Overall length for the 12" x 8" Tri-Clamp Concentric Reducer is 9.875".
  14. For a 3/4" to 1/2 inch reducer, what size triclamp ring clamps are used on the two ends?
  15. Q For a 3/4" to 1/2 inch reducer, what size triclamp ring clamps are used on the two ends?
    A For both ends of the tri-clamp reducer, you would use the same sized clamp. In the case of our single-pin heavy-duty clamp, this would be part number 13MHHM-050-075. The clamp will accommodate both sizes properly as the outside diameter of the flange is the same size, 0.992".
  16. I am interested in a concentric reducer from 12" to 6". Tri clamp. Do you offer anything to accommodate my needs?
  17. Q I am interested in a concentric reducer from 12" to 6". Tri clamp. Do you offer anything to accom...... Read more
    A Hello, thanks for your question. Yes, we can definitely help you out with this. I should point out that this is a custom product and therefore cannot be returned. The lead time on such items is typically 2 - 3 weeks just to give you a heads up. Please call for pricing. Oh, and we'll need to know if you want this in 304 or 316 alloy.
  18. Please see attached image. What size clamp reducer do I need? Tony. Sanitary Reducer Size
  19. Q Please see attached image. What size clamp reducer do I need? Tony.... Read more
    A Hi, Tony thanks for writing in! A picture is worth a thousands words, right? Okay so let's get down to business. With the picture on the left your measuring the flange outside diameter and it looks to be a little bit bigger than 1 13/16" or 1.8125". The picture on the left shows an OD flange measurement of almost exactly 3 inches. Using our guide, I would say that the fitting reducer necessary to join these separate items would be our 2 1/2" -- 1 1/2" clamp reducer. Item # 3114MP4-250150 or 3114MP6- 250150 depending upon whether or not your need 304 or 316 stainless steel. Along with the reducer I recommend picking up a couple of our gaskets and heavy duty single pin clamps. Thanks for sending the picture and good luck with your project. ~John
  20. What is the size of the flange? Does OD refer to flange size? Is the 2" OD and 2" tri-clamp fitting the same thing?
  21. Q What is the size of the flange? Does OD refer to flange size? Is the 2" OD and 2" tri-clamp fitti...... Read more
    A Hello and thanks for your question. The size of tri-clamp fittings can be quite confusing for new customers. The flange size, which is the overall outside measurement of the connection is NOT the same as the sanitary fitting size, in this case 2". If you reference our Clamp Fittings & Gasket Size chart, you'll see that a 2" sanitary fitting has an overall flange size of 2.516 OD and an inside diameter of 1.870. In both cases neither dimension ID or OD is 2". This adds to the confusion, I know. The true sanitary fitting size is actually a value between both the outside and inside diameters. Hope this helps!

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