SKUs available on this product page

42MPEW-3/4, 40MPUO-4, 40MPUO-3, 40MPUO-1.5, 40MOU-5, 40MOE-5, 42MPE-3/4-VI, 40MPEW-1.5, 40MPEW-2.5, 40MPEW-1, 40MPEW-4, 40MOGBT-10, 42MPGBT-3/4, 40MPX-1.5, 40MPEW-2, 40MPX-2.5, 40MPEW-3, 40MOEW-5, 40MPX-R-1.5, 40MOEW-6, 40MOGBT-8, 40MPE-1.5-VI, 40MPXB-2.5, 40MPX-3, 40MOGBT-6, 40MPX-2, 40MPX-1, 40MPWSFY-1.5, 40MPX-4, 40MPWSFY-2.5, 40MPX-R-2, 40MPX-R-4, 40MPUY-2.5, 40MPWSFY-3, 40MPUY-1.5, 40MPWSFY-2, 40MPWSFY-4, 40MOFE-12, 40MPWSFY-1, 40MPUW-1.5, 40MPUY-2, 40MPUW-2.5, 40MPUY-3, 40MPUY-4, 40MPUPK-2.5, 40MPUY-1, 40MPUPK-1.5, 40MPUY-6, 40MPUW-2, 40MPUW-3, 40MPUPURPLE-2.5, 40MPUW-4, 40MPUW-1, 40MPUPURPLE-1.5, 40MPUPK-2, 40MPUPK-3, 40MPUPK-1, 40MPUPK-4, 40MPUR-1.5, 40MPUPURPLE-2, 40MPUR-2.5, 40MPUPURPLE-3, 40MPUPURPLE-1, 40MPUPURPLE-4, 42MPE-3/4, 40MPUR-2, 40MPUR-3, 40MPUB-1.5, 40MPUB-2.5, 40MPUR-4, 42MPE-1/2, 40MPE-1-VI, 40MPUG-1.5, 40MPUR-1, 40MPUB-3, 40MPUG-2.5, 40MPUB-2, 40MPUB-4, 40MPUB-1, 40MPUG-2, 40MPUG-3, 40MPUG-4, 40MPUG-1, 40MPUO-2, 40MOUW-6, 40MPSFYB-2.5, 40MOUW-8, 40MPSFYB-1.5, 40MOUW-5, 40MOWSFY-6, 40MOX-6, 40MPSFYG-2.5, 40MOX-5, 40MPSFYG-1.5, 40MPSFYB-3, 40MPSFYB-2, 40MPSFYB-4, 40MPSFYB-1, 40MPSFYR-2.5, 40MPSFYG-3, 40MPSFYR-1.5, 40MPSFYG-2, 40MPSFYY-2.5, 40MPSFYG-4, 40MPSFYY-1.5, 40MPSFYG-1, 40MPSFYR-3, 40MPSFYR-2, 40MPER-1.5, 40MPSFYR-4, 40MPSFYY-4, 40MPER-2.5, 40MPSFYY-2, 40MPGBT-1.5, 40MPSFYY-3, 40MPSFYY-1, 40MPGBT-2.5, 40MPER-3, 42MPUW-3/4, 40MPER-2, 42MPUW-1/2, 42MPWSFY-3/4, 40MPER-4, 42MPWSFY-1/2, 42MPX-3/4, 42MPX-1/2, 40MPGBT-4, 40MPGBT-2, 40MPGBT-3, 40MPGBT-1, 40MPG-1.5, 40MOG-5, 40MOSFY-12, 40MPSFY-1.5, 40MOG-12, 40MP-12-BUNA, 40MOFE-10, 40MOFSFY-10, 40MOG-10, 40MOFU-10, 40MOE-8, 40MOSFY-8, 40MOG-8, 40MOU-8, 40MOE-6-VI, 40MPSFY-6, 40MOG-6, 40MOU-6, 40MPE-4-VI, 40MPSFY-4, 40MPG-4, 40MPU-4, 40MPE-3-VI, 40MPSFY-3, 40MPG-3, 40MPU-3, 40MPE-2.5-VI, 40MPSFY-2.5, 40MPG-2.5, 40MPU-2.5, 40MPE-2-VI, 40MPSFY-2, 40MPG-2, 40MPU-2, 40MPU-1.5, 40MPSFY-1, 40MPG-1, 40MPU-1, 42MPSFY-3/4, 42MPG-3/4, 42MPU-3/4, 42MPSFY-1/2, 42MPG-1/2, 42MPU-1/2,

Tri-Clamp Gaskets – Type 1 Standard (40MP)

Quantity - +

Sanitary tri-clamp gaskets are used to make a secure, leak-proof connection between clamp fittings.

A variety of materials are available for selection depending upon medium used inline processing. Gaskets range in size from 1/2 inch to 12 inches.

If you would like a copy of a gaskets certificate, please ask for them at the time of order. Certificates are specific per lot of gaskets.  Much like a heat number for fittings, gaskets have what is called a lot number. We don’t log these numbers at the time of order but we do include them on the packaging if you need the certificate after receiving them.

Please see Compound Selection Guide for compatibility information.

Gasket Cleaning & Maintenance

Size (Tube OD) Material
Buna EPDM Teflon® Viton®
1/2" 40MPU-1/2 42MPE-1/2 42MPG-1/2 42MPSFY-1/2
3/4" 40MPU-3/4 42MPE-3/4 42MPG-3/4 42MPSFY-3/4
1" 40MPU-1 40MPE-1 42MPG-1 42MPSFY-1
1 1/2" 40MPU-1.5 40MPE-1.5 42MPG-1.5 42MPSFY-1.5
2" 40MPU-2 40MPE-2 42MPG-2 42MPSFY-2
2 1/2" 40MPU-2.5 40MPE-2.5 42MPG-2.5 42MPSFY-2.5
3" 40MPU-3 40MPE-3 42MPG-3 42MPSFY-3
4" 40MPU-4 40MPE-4 42MPG-4 42MPSFY-4
6" 40MPU-6 40MPE-6 42MPG-6 42MPSFY-6
8" 40MPU-8 40MPE-8 N/A N/A
10" 40MPU-10 40MPE-10 N/A N/A
12" 40MPU-12 40MPE-12 N/A N/A

 

Tri-Clamp Gasket Sizes & Dimensions

Tri-Clamp Gasket Dimensions

Sanitary Size A B C D
1/2" .875 .4375 NA
3/4" .875 .6250 NA
1" 1.984" .900" 1.718" 0.203"
1 1/2" 1.984" 1.400" 1.718" 0.203"
2" 2.515" 1.900" 2.218" 0.203"
2 1/2" 3.050" 2.400" 2.781" 0.203"
3" 3.579" 2.900" 3.281" 0.203"
4" 4.682" 3.869" 4.344" 0.203"
6" 6.570" 5.813" 6.176" 0.203"
8" 8.570" 7.813" 8.165" 0.238"
10" 10.570" 9.813" 10.156" 0.238"
12" 12.570" 11.813" 12.151" 0.238"

 

Tri-Clamp Gasket Comparison Guide

Gasket Temperature Range Recommended Usage Not Recommended Industry Certification Approval
Buna (Nitrile) Standard: -35°F to 250°F (-37°C to 121°C) Water, Oils, Fuels Ketones, Strong Acids, Sunlight, Ozone, Weathering Food & Beverage FDA Approved
EPDM (Ethylene Propylene) Standard: -65°F to 300°F (-54°C to 149°C) Sunlight, Weathering, Hot Water, Steam, Select Acids/Bases, Alcohols Oils, Fuels Bio-Pharmaceutical, Food & Beverage, Drinking Water USP Class VI Tested
PTFE (Teflon®) Standard: -100°F to 450°F (-74°C to 232°C) Chemical, Heat, Pressure Applications Stretching, Elasticity Chemical Processing USP Class VI Tested
FKM (Viton®) Standard: -15°F to 437°F (-26°C to 222°C) Vacuum, Most Acids / Chemicals, Oils, Fuels Ketones, Ammonia, Hot Water / Steam Chemical Processing USP Class VI Tested
Silicone Standard: -65°F to 450°F (-53°C to 232°C) Food processing machinery and industrial oven seals in the food industry. In the medical industry, they are used for medical and healthcare equipment. Ammonium Nitrite, Barium Sulfate, Milk Benzene, Butane, Freon USP Class VI Tested

How to Measure Tri-Clamp Fittings

Tri-Clamp Fittings and Gasket Sizing Guide

Sanitary Fitting Dimensions

Sanitary
Size
Flange
OD (?)
Tube
ID (?)
Tube
OD (?)
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″ 6.562 5.782 6.000
8″ 8.602 7.782 8.000
10″ 10.570 9.782 10.000
12″ 12.570 11.760 12.000

Looking for even more information on Tri-Clamp fittings?

We have everything you need. Read "The Ultimate Guide to Tri-Clamp Fittings"

SKUS Available for sale on this product page
40MP
GTCB-050
GTCB-075
GTCB-100
GTCB-1000
GTCB-1200
GTCB-150
GTCB-200
GTCB-250
GTCB-300
GTCB-400
GTCB-600
GTCB-800
GTCE-050
GTCE-075
GTCE-100
GTCE-1000
GTCE-1200
GTCE-150
GTCE-200
GTCE-250
GTCE-300
GTCE-400
GTCE-500
GTCE-600
GTCE-800
GTCT-050
GTCT-075
GTCT-100
GTCT-1000
GTCT-1200
GTCT-150
GTCT-200
GTCT-250
GTCT-300
GTCT-400
GTCT-600
GTCT-800
GTCV-050
GTCV-075
GTCV-100
GTCV-1000
GTCV-1200
GTCV-150
GTCV-200
GTCV-250
GTCV-300
GTCV-400
GTCV-600
GTCV-800
40MP-12-TEF
40MP-1-TEFLON
40MP-1.5-TEFLON
40MPX-2
40MPX-1.5
40MOSFY-12
40MOG-12
40MOFE-12
40MOFU-12
40MOFSFY-10
40MOG-10
40MOFE-10
40MOFU-10
40MOSFY-8
40MOG-8
40MOE-8
40MOU-8
40MPSFY-6
40MOG-6
40MOE-6-VI
40MOU-6
40MPSFY-4
40MPG-4
40MPE-4-VI
40MPU-4
40MPSFY-3
40MPG-3
40MPE-3-VI
40MPU-3
40MPSFY-2.5
40MPG-2.5
40MPE-2.5-VI
40MPU-2.5
40MPSFY-2
40MPG-2
40MPE-2-VI
40MPU-2
40MPSFY-1.5
40MPU-1.5
40MPSFY-1
40MPG-1
40MPE-1-VI
40MPU-1
42MPSFY-3/4
42MPG-3/4
42MPE-3/4
42MPU-3/4
42MPSFY-1/2
42MPG-1/2
42MPE-1/2
42MPU-1/2
40MPUY-4
40MPUY-6
40MPUY-1
40MPE-1.5-VI
40MPG-1.5
40MPX-1
40MPUW-2
40MPEW-1
40MPEW-4
40MOGBT-10
40MPWSFY-4
40MPWSFY-1.5
40MPWSFY-2.5
40MPWSFY-1
40MPUY-2
40MPUY-3
40MPUY-2.5
40MPUY-1.5
40MOG-5
40MPUW-3
40MPUW-1.5
40MPUPK-4
40MPUW-2.5
40MPUW-4
40MPUW-1
40MPUPK-2
40MPUPK-2.5
40MPUPK-1.5
40MPUPK-3
40MPUPK-1
40MPWSFY-2
40MPWSFY-3
40MPXB-2.5
40MPUPURPLE-2
40MPUPURPLE-2.5
40MPUPURPLE-3
40MPUPURPLE-1.5
40MPUPURPLE-1
40MPUPURPLE-4
40MPUR-2
40MPUR-3
40MPUR-4
40MPUR-1.5
40MPUR-2.5
40MPUR-1
40MPUB-3
40MPUB-2
40MPUB-4
40MPUB-1.5
40MPUB-2.5
40MPUB-1
40MPUG-2
40MPUG-1.5
40MPUG-3
40MPUG-4
40MPUG-2.5
40MPUG-1
40MPUO-2
40MOUW-6
40MOUW-8
40MOUW-5
40MOWSFY-6
40MOX-6
40MOX-5
40MPSFYB-3
40MPSFYB-2
40MPSFYB-2.5
40MPSFYB-4
40MPSFYB-1.5
40MPSFYB-1
40MPSFYG-3
40MPSFYG-2
40MPSFYG-2.5
40MPSFYG-1.5
40MPSFYG-4
40MPSFYG-1
40MPSFYR-3
40MPSFYR-2
40MPSFYR-4
40MPSFYR-2.5
40MPSFYR-1.5
40MPSFYY-4
40MPSFYY-2
40MPSFYY-2.5
40MPSFYY-1.5
40MPSFYY-3
40MPSFYY-1
40MPER-3
40MPER-2
40MPER-1.5
40MPER-4
40MPER-2.5
40MPGBT-4
40MPGBT-2
40MPGBT-1.5
40MPGBT-3
40MPGBT-2.5
40MPGBT-1
42MPUW-3/4
42MPUW-1/2
42MPWSFY-3/4
42MPWSFY-1/2
42MPX-3/4
42MPX-1/2
40MPX-R-2
40MPX-R-4
40MPX-R-1.5
40MPX-4
40MPX-2.5
40MPX-3
40MPEW-1.5
40MPEW-2
40MPEW-2.5
40MPEW-3
40MOEW-5
40MOEW-6
40MOGBT-8
40MOGBT-6
42MPGBT-3/4

Additional information

    Are the PTFE tri-clamp gaskets rated to full vacuum at 40 degree C using a High Pressure Tri-Clamp?
  1. Q Are the PTFE tri-clamp gaskets rated to full vacuum at 40 degree C using a High Pressure Tri-Clamp?
    A

    Unfortunately, none of the gaskets or fittings that we provide are rated for vacuum conditions.

  2. I am working on a design that requires somewhat tight tolerance on positioning of a tri-clamp end cap. I have not found a good reference for recommended/expected gasket compression. This will be a 10” BUNA sanitary gasket, do you have any guidance you can share?
  3. Q I am working on a design that requires somewhat tight tolerance on positioning of a tri-clamp end...... Read more
    A I don't have additional guidance that I can provide other than overtightening the gaskets can cause them to warp and possibly leak. Tri-Clamp gasket connections should be hand tightened just beyond a range I would refer to as "snug". The gasket is able to do the job it was intended for, it really just needs to be held firmly in place by the clamp.
  4. I would like to request a sample for this gasket_SKU: 40MP-1-VITON
  5. Q I would like to request a sample for this gasket_SKU: 40MP-1-VITON
    A Sure, we can do that for you. I'll reach out to you for additional contact information.
  6. Best material for high pressure, 750 psi and temperature, 200F?
  7. Q Best material for high pressure, 750 psi and temperature, 200F?
    A At that temperature, you can utilize any of our gaskets. For that level of pressure, we recommend our double-pin high-pressure clamp.
  8. Are there any animal origin materials used in your gaskets?
  9. Q Are there any animal origin materials used in your gaskets?
    A Our gaskets are comprised of 100% synthetic materials.
  10. What is the benefit of Tri-Clamp Envelope gaskets?
  11. Q What is the benefit of Tri-Clamp Envelope gaskets?
    A The reason for choosing the Envelope Gasket is because Teflon, by itself, is kind of a rigid material. EPDM on the other hand is very flexible. This gasket is an EPDM gasket center with Teflon outside. It works great in environments where you need the durability to stand up to harsh chemicals that Teflon provides but the flexibility that EPDM offers.
  12. These gaskets are class IV rated. What does class IV rating mean?
  13. Q These gaskets are class IV rated. What does class IV rating mean?
    A Class IV gasket rating is a certificate stating that the material used within gaskets is not harmful to living things. While gasket material should not wind up in the manufacturer's final product if it did find its way to the consumer it would not be harmful to ingest.
  14. Best gasket material for high proof ethanol?
  15. Q Best gasket material for high proof ethanol?
    A We recommend EPDM gasket material for any alcohol process line implementations including ethyl alcohol.
  16. I’ve noticed leaking at a couple of connection points. All tri-clamp fittings and gaskets are new. Clamps are tight. What can I do to eliminate the leakage?
  17. Q I’ve noticed leaking at a couple of connection points. All tri-clamp fittings and gaskets are new...... Read more
    A With regards to any leaking tri-clamp fittings, start by checking that the gasket is properly seated in the grooves. Depending upon the material of gasket, sometimes less flexible gaskets can bend/flex in a bad way if it's overtightened. I would check to make sure that you are not going about 1 full turn past "snug". Give these things a try and see if they help.
  18. What is the country of origin for these gaskets?
  19. Q What is the country of origin for these gaskets?
    A The country of origin for our tri-clamp gaskets is the United States. For your reference, the HTS code is 3926.90.4500.
  20. Are the PTFE tri-clover gaskets FDA approved?
  21. Q Are the PTFE tri-clover gaskets FDA approved?
    A Yes! Our tri-clamp gaskets are approved by the Food & Drug Administration for use in the production of food, beverage and pharmaceutical industries. We can supply a certificate stating as such upon demand. Additionally, these gaskets are also Class VI tested by USP to be in compliance with their testing criteria. We can also supply a certificate stating as such.