Hangers and Anchors

At Hold 4, maintain 350 F (177 C) for 1 hr for each inch of refractory thickness. 9.7.3. Hangers and Anchors 

Although these two terms are sometimes used interchangeably, anchors are ceramic or high-temperature metal alloy shapes embedded in a monolithic refractory whereas hangers are usually the metal holders for the anchors. The hangers and anchors not only support the refractory wall or roof but do so while allowing shght expansion and 

Equation 9.1 assumes equal support spacings in both directions. 

---

Supports, hangers, and anchors should be so installed as not to interfere with the free expansion and contraction of the piping between anchors. 

---