Low-Cost Stainless Steel Tube Fittings
3A Certified

Tri-Clamp Concentric Reducers

  • Sanitary Clamp Concentric Reducers
  • Available in 304 & 316L Stainless Steel
  • 3A Certified for sanitary-grade line process equipment
  • Fitting clamps to tubing on both ends for a non-permanent seal for easy access
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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.

Clamp style connections offer a quick and easy way to disassemble line processing for access to process media and cleaning solutions. 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

Sanitary Clamp Concentric Reducer Dimensions

(Tube OD)
Part Number Dimensions
304L 316L A
3/4″ x 1/2″ NA 3114MP6-075050 2.000
1″ x 1/2″ NA 3114MP6-100050 3.000
1″ x 3/4″ NA 3114MP6-100075 2.000
1-1/2″ x 1/2″ NA 3114MP6-150050 5.000
1-1/2″ x 3/4″ NA 3114MP6-150075 4.000
1-1/2″ x 1″ 3114MP4-150100 3114MP6-150100 3.000
2″ x 1/2″ 3114MP4-200050 3114MP6-200050 7.000
2″ x 3/4″ 3114MP4-200075 3114MP6-200075 6.000
2″ x 1″ 3114MP4-200100 3114MP6-200100 5.000
2″ x 1-1/2″ 3114MP4-200150 3114MP6-200150 3.000
2-1/2″ x 1-1/2″ 3114MP4-250150 3114MP6-250150 5.000
2-1/2″ x 2″ 3114MP4-250200 3114MP6-250200 3.000
3″ x 1″ 3114MP4-300100 3114MP6-300100 9.000
3″ x 1-1/2″ 3114MP4-300150 3114MP6-300150 7.000
3″ x 2″ 3114MP4-300200 3114MP6-300200 5.000
3″ x 2-1/2″ 3114MP4-300250 3114MP6-300250 3.000
4″ x 1″ 3114MP4-400100 3114MP6-400100 11.125
4″ x 1-1/2″ 3114MP4-400150 3114MP6-400150 11.125
4″ x 2″ 3114MP4-400200 3114MP6-400200 9.125
4″ x 2-1/2″ 3114MP4-400250 3114MP6-400250 7.125
4″ x 3″ 3114MP4-400300 3114MP6-400300 5.125
6″ x 2″ 3114MP4-600200 3114MP6-600200 6.875
6″ x 3″ 3114MP4-600300 3114MP6-600300 6.875
6″ x 4″ 3114MP4-600400 3114MP6-600400 7.000
8″ x 3″ 3114MP4-800300 3114MP6-800300 7.500
8″ x 4″ 3114MP4-800400 3114MP6-800400 7.500
8″ x 6″ 3114MP4-800600 3114MP6-800600 7.750

Clamp Fittings and Gasket Sizing Guide

Sanitary Fitting Dimensions
Sanitary SizeOutside Diameter (OD) of Clamp EndInside Diameter (ID) of FittingOutside Diameter (OD) of Fitting
1 1/2"1.9841.3701.500
2"2.5161.870 2.000
2 1/2"3.0472.3702.500

Questions and answers of the customers

  1. 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.
  2. 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
  3. 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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