Copy that. I did it and it works great! We had to throw in a pressure balanced elbow to isolate that thermal movement and static/dynamic load from the piping. Is that typical? Seems like it's used to isolate equipment.

I modeled it with a single element EJ (finite length of 4 feet) with the spring rate / stiffness values from the entire Pressure balanced EJ assembly from the manufacturer. So I have axial, trans and bending values; torsion is 0 and eff dia is 0 due to the joint being tied. Is this an accurate way to model this type of joint?

But the displacement with Cnodes works great! Thanks all.