Constructed with multi-ply stainless steel bellows and carbon steel shroud, these joints include an internal anti-torque device. End fittings are available in stainless or carbon steel NPT, flange, weld, and groove. These joints have a rating of 200 PSIG working pressure at 750°F and axial movements of 1 ¾” compression and ¼” extension. I.D.’s ¾” – 4”.