U.S. Toll Free: (800) 832-6587 | Local: (602) 269-5748

The Latest At Valley Forge

L
E
A
R
N

M
o
R
E

Request a quote

Request For Quotation

What is the nature of your request?


Let's talk

Have a question?

What's the best way to reach you?

Learning from the Maxbolt Crosstalk Video


Our Maxbolt™ crosstalk video demonstrates the interactions which occur between fasteners in a typical flanged piping connection.  This scenario is a perfect example of the complexity of many real-life bolted joints; particularly those with gaskets.

The demonstration clearly shows the limitations inherent with torque-tightening.  The resulting differences between theory and reality can be significant.  Not only does torque-tightening deliver limited accuracy in terms of resulting bolt tension, but it cannot tell you what happens once the torque wrench is removed.

All conventional tightening methods except for load indicating fasteners have this limitation, in that they are only useful for initial installation, and cannot be used to provide feedback from the bolts (and the joint) after tightening.  It is true that methods such as torque-tightening, hydraulic tensioning, or turn of the nut techniques can be used in various ways after the initial bolt tightening in an effort to compensate for interactions such as bolt cross-talk.  However these methods all fundamentally use the same approach; repeat the same (or a variant of the) procedure used during initial tightening.  In the context of torque-tightening, a common practice in industry is to repeatedly torque the bolts in a joint over-and-over until the nuts do not turn.  If the nuts turn this implies that the bolt became loose during prior tightening.  Obviously this information is very subjective in nature and does not provide any useful information other than some form of load relaxation or joint interaction is actually taking place.

If load-indicating bolts are utilized, as in this video demonstration, the nature and magnitude of the interactions can be quantified, and more importantly corrected for.  Rather than embarking on the time-consuming process of blindly re-torquing all bolts multiple times, a more calculated approach can then be taken which targets only those bolts with unacceptably low load.

 

logo-amigos

logo-amigos

logo-astm-int

logo-astm-int

logo-ifi

logo-ifi
DON’T MISS OUT!
Subscribe To Newsletter
Be the first to get latest updates and exclusive content straight to your email inbox.
Stay Updated
Give it a try, you can unsubscribe anytime.
DOWNLOAD NOW
Download the Valley Forge & Bolt Company Brochure
Innovative Bolting Technologies
& Load Indicating Fasteners
Stay Updated
DOWNLOAD NOW
Load Indicating Liner Bolts Brochure
Two Options for Load Reading 
Download Now!
DOWNLOAD NOW
Download the Ridgeback® Brochure
Innovative Bolting Technologies
& Load Indicating Fasteners
Download Now!
DOWNLOAD NOW
Download the Maxbolt™ Knowledge Brochure
Maxbolt™ Knowledge continuously measures and
displays the amount of tension in a bolt or stud.
Download Now!
DOWNLOAD NOW
Download the Complete Maxbolt™ Specification Sheet
Maxbolt™ equipped fasteners display load with a
mechanical dial mounted directly into the fastener
Download Now!
DOWNLOAD NOW
Download the SPC4™ Reader
Specifications
All models display bolt clamp load with ~5% accuracy.
Download Now!
DOWNLOAD NOW
Download the SPC4™ Complete
Specification Sheet
SPC4™ equipped fasteners require the use of an external load reader device to attach to the fastener and display load as a percentage of total capacity.
Download Now!
DOWNLOAD NOW
Download the Clarkester™
Tester Brochure
Solve the mystery of torque tensioning.
Download Now!
DOWNLOAD NOW
Download the Data-Logging & Remote Monitoring Brochure
Designed for your specific application.
Tailored to your needs.
Download Now!
DOWNLOAD NOW
Download the Wireless Load
Monitoring Brochure
Designed for your specific application.
Tailored to your needs.
Download Now!

Important Announcement

In response to recent public health concerns and multiple requests regarding our ability to fulfill customer orders, Valley Forge does not currently foresee any negative impact from the Coronavirus (COVID-19).

All parts manufactured at Valley Forge are made with U.S. domestic steel and our raw material supply for this and other materials / components has not been affected. We will be maintaining continuous communication with our suppliers and will maintain an ongoing dialogue to ensure there are no disruptions in our supply chain.

 

Click here for a full statement