Sanitary Tri-Clamp Selection Guide [How to Choose a Clamp]

  • John Zabkowicz
  • February 13, 2020

There are several sanitary clamps available to choose from.  Each has its own unique design and serves a specific purpose.  Let’s start by taking a look at the different types of sanitary clamps that we offer.  They include:

  • Single-Pin Heavy Duty Clamp
  • Double-Pin and Three-Segment Clamps
  • High-Pressure Clamps
  • Squeeze clamps

Continue reading to learn more about the design and capabilities of each clamp in order to make a proper selection for your needs.


Single-Pin Heavy Duty Clamp

Single-Pin Heavy Duty Clamp

Our most popular style of clamp is the single-pin heavy duty clamp.  It’s simple design and dependability make it one of the most commonly used clamps in processing equipment.  As you can see there is a single-pin which acts as a hinge to open and close the clamp. Finally, there is a threaded bolt that is used to secure the clamp in place, connecting two ferrules with a gasket in between.

Single-Pin Clamp Part Numbers & Dimensions

Single-Pin Heavy Duty Clamp Dimensions

Size (Tube OD)Part NumberService Pressure Rating at 70°FService Pressure Rating at 250°FDimension (A)
1/2″ – 3/4″13MHHM-.50-3041,5001,2001.062
1″ – 1 1/2″13MHHM-1-3045003002.122
2″13MHHM-2-3044502502.654
2-1/2″13MHHM-2.5-3044002003.185
3″13MHHM-3-3043501753.717
4″13MHHM-4-3043001504.820
6″13MHHM-6-304150756.695
8″13MHHM-8-304100508.695
10″13MHHM-10-304754010.695
12″13MHHM-12-304502512.695

Double-Pin & Three-Segment Clamps

Double Pin Tri-Clamp Three Segment Tri-Clamp
Doube-Pin ClampThree-Segment Clamp

Alternative designs for the single-pin clamp include the double-pin and three segment clamp.  These clamps include additional hinges which some users find beneficial when working in tight spaces where maneuverability may be difficult.  In terms of pressure ratings, the single/double/and three segment clamps are rated roughly the same for the amount of pressure they can withstand.

Double-Pin Clamp Part Numbers & Dimensions

Size (Tube OD)Part NumberService Pressure Rating at 70°FService Pressure Rating at 250°FDimension (A)
1/2″ – 3/4″13MHHM-DP-.50-3041,5001,2001.125
1″ – 1 1/2″13MHHM-DP-1-3045003002.122
2″13MHHM-DP-2-3044502502.654
2-1/2″13MHHM-DP-2.5-3044002003.185
3″13MHHM-DP-3-3043501753.717
4″13MHHM-DP-4-3043001504.820
6″13MHHM-DP-6-304150756.695
8″13MHHM-DP-8-304100508.695
10″13MHHM-DP-10-304754010.695

Three Segment Heavy Duty Clamps w/ Wing Nut Part Numbers & Dimensions

Three-Segment Clamp Part Numbers & Dimensions

Size (Tube OD)Part NumberService Pressure Rating at 70°FService Pressure Rating at 250°FDimension (A)
1″ – 1 1/2″13MHHS-1-3046003002.122
2″13MHHS-2-3045502752.654
2-1/2″13MHHS-2.5-3044502253.185
3″13MHHS-3-3043501753.717
4″13MHHS-4-3043001504.820
6″13MHHS-6-3042501255.820

Double-Bolt High-Pressure Clamp

High Pressure Double Bolt Tri-Clamp

If you are working with pressurized processing systems then this next clamp will most likely be your clamp of choice.  The double-bolt high-pressure clamp is rated to handle pressures 3 – 5 times higher than other clamps available. As you can see, the high-pressure clamp is able to come complete apart upon removing the two nuts.  Securing the clamp in place with threaded nut a bolt connection makes this type of clamp our most secure offering.

High-Pressure Clamp Part Numbers & Dimensions

Size (Tube OD)Part NumberService Pressure Rating at 70°FService Pressure Rating at 250°FDimensions
A
1/2 – 3/4″13MHP-050-075150012001.062
1″ – 1-1/2″13MHP-100-150150012002.046
2″13MHP-20010008002.578
2-1/2″13MHP-25010008003.110
3″13MHP-30010008003.640
4″13MHP-4008006004.744
6″13MHP-6003002006.632

Squeeze Clamp

Tri-Clamp Squeeze Clamp

Our last style of sanitary clamp is the squeeze clamp.  The unique selling point of this clamp is the ability to secure the clamp in place with one hand.  If you are connecting tubes where one end is not currently supported this clamp is ideal for a one-man installation by allowing you to hold the tube with one hand and secure the clamp with the other.

Squeeze Clamp Part Numbers & Dimensions

Squeeze Clamp Dimensions

Tri-Clamp Squeeze Clamp Detailed Dimensions

Size
(Tube OD)
Part NumberService Pressure Rating at 70°FService Pressure Rating at 250°FDimension (A)Dimension (D)
1/2″ – 3/4″13MHHMQ-050150012002.122 3.625
1″ – 1 1/2″13MHHMQ-1005003002.122 4.625
2″13MHHMQ-2004503002.654 5.000
2-1/2″13MHHMQ-2504002003.185 6.000
3″13MHHMQ-3003501953.717 7.000
4″13MHHMQ-4003001504.820 8.000

If you have any other questions, please contact us for additional information.