Single-Pin Heavy Duty Clamp (13MHHM)
Single-Pin Heavy Duty Clamp (13MHHM)
- Tri-Clamp Single Pin Heavy Duty Clamp
- Clamps are available in both 304 & 316L Stainless Steel.
- Pressure ratings assume wing nut tightened to 25 in/lb of torque.
- View Sizes and Dimensions
Securely connect tri-clamp ends with heavy-duty, stainless steel single-pin clamp (13MHHM)The single-pin heavy duty clamp with a wingnut is made from 304 stainless steel alloy (Also available in 316). It is used to join two separate tri-clamp ends to one another. Sizes on this product range from 1/2 inch all the way up to 12 inches in diameter. A tri-clamp rubber gasket should be placed between the two flange ends to ensure proper fit and secure connection. Do not over tighten wing-nut as this may damage the product. The recommended amount of tension is to tighten the wing-nut until it becomes snug, then perform one more half twist for the proper amount.
Single Heavy Duty Clamps w/ Wing Nut Part Numbers & Dimensions
13MHHM Single-Pin Heavy Duty Clamp Detailed Drawing & Dimensions
|Size (Tube OD)||Part Number||Service Pressure Rating at 70°F||Service Pressure Rating at 250°F||Dimension (A)|
|1/2" - 3/4"||13MHHM-.50-304||13MHHM-.50-316||1,500||1,200||1.062|
|1" - 1 1/2"||13MHHM-1-304||13MHHM-1-316||500||300||2.122|
Watch How to Measure Tri-Clamp Fittings
Tri-Clamp Fittings and Gasket Sizing Guide
|Sanitary Size||OD of Flange End||ID of Tube||OD of Tube|
Questions & Answers 9
Questions and answers of the customers
I have about 300 heavy duty single pin clamps with no wing nut. Can I buy just the wing nuts?
Q I have about 300 heavy duty single pin clamps with no wing nut. Can I buy just the wing nuts?A Unfortunately, we can only sell the clamps as an entire unit.
What is the minimum recommended clearance required to fasten these clamps?
Q What is the minimum recommended clearance required to fasten these clamps?A
Normal clearance for these types of clamps is typically 125% of the original diameter. If clearance is a concern, we recommend the High-Pressure Clamp as this can be installed in two pieces with minimal clearance needed.
Does the clamp come in varying sizes to accommodate different thicknesses of flanges? I guess similar to the "height of groove" question above, what is the width measurement? Are there different sizes to chose from? I have a machine that has a flange at the end of its pipe that is thicker than typical tri clamp flanges. I essentially want to mate a short ferrule and this other pipe with a clamp, a filter of sorts being sandwiched between them.
Q Does the clamp come in varying sizes to accommodate different thicknesses of flanges? I guess sim...... Read moreThere are no answers for this question yet.
Are double pin clamps superior to single pin clamps or are they for different applications?
Q Are double pin clamps superior to single pin clamps or are they for different applications?A The difference between and of the single-pin, double, or three-segment clamps come down to flexibility. The single-pin clamp is the least flexible. If you're working with a tight situation, sometimes it's nice to have a little flexibility to maneuver the clamp into place. Each unique clamp product page lists pressure ratings per size for more information as they do vary slightly. If you have any other questions please contact us.
What can you tell us about torque when tightening the clamp wing nuts?
Q What can you tell us about torque when tightening the clamp wing nuts?A This is a pretty common question amongst users of Tri-Clamp fittings. These clamps are designed to be hand-tightened. Even with that, these clamps can be overtightened. I usually recommend securing the clamp so that it is snug and then going another half to full turn after that. The gasket and clamp will for a leak-proof seal without the need for a super tight connection.
The pictures of these clamps on your website look like the 100-150 PSI rated versions of Single Pin Heavy Duty Sanitary Clamps (13MHHM). Please verify they are of the service duty listed on your website (500 psi at 70°F. At that rating, they should be the duty equivalent of VNE or Dixon 13MHHM clamps.
Q The pictures of these clamps on your website look like the 100-150 PSI rated versions of Single P...... Read moreA Those clamps (13MHHM) are the equivalent of VNE or Dixon 13MHHM clamps. The pressure ratings are below and verified as being accurate. Please let me know if you have any questions.
Are sanitary fitting clamps designed to support weight?
Q Are sanitary fitting clamps designed to support weight?A Tri-Clamp fittings, specifically the clamps, are not designed to be weight bearing. If you are planning to attach a component to your processing line it must be supported by other means. We do offer a line of tube hangers that can be used to accommodate the extra weight. Typically these tube hangers are mounted to the ceiling.
What is the height measurement of the groove?
Q What is the height measurement of the groove?A
Hello, this is an interesting question that I have never been asked before. The groove of the single pin heavy duty clamp is going to fit the flange of the tri-clamp connection snugly when properly secured. If I understand your question correctly, you are looking for the height of this groove which should also be equal to the height of the flange.
Using a 2" clamp as an example, you can see from the sizing guide chart that the outside diameter is 2.516" and the inside diameter is 1.870". Subtracting these numbers gives us 0.646", however, this accounts for both the height of both flanges combined. Dividing by 2 the height of the flange, and the groove of the single pin clamp, should both be 0.323" or somewhere really close to this. Applying this formula to the 4" version you'll see that the height/groove size increases along with the flange size.
I hope this helps, please call with any additional questions.
Is 3" diameter of the pipe or the flange for these clamp fittings?
Q Is 3" diameter of the pipe or the flange for these clamp fittings?A The 3" diameter refers the sanitary fitting size and neither the flange, not the tube size. In this particular case the flange will be slightly bigger than 3". The best way to imagine this is to stand your fitting, flange side down on a piece of paper and tracing it. The outside diameter of a 3" sanitary fitting is 3.717". For more information on specific flange, ID/OD, sanitary fitting dimensions please refer to our Clamp Fittings and Gasket Sizing Guide which can be found on most product pages. Thanks for asking!