# Refractory anchor

> Metallic and ceramic refractory anchors, including V-type, that hold monolithic linings to the shell, with API 936 installation control and request details.

URL: https://jjprojectsok.com/products/refractory/v-anchor  
Español: https://jjprojectsok.com/es/products/refractory/v-anchor  
Updated: 2026-10-16

Metal or ceramic support fixed to the shell that holds a monolithic lining in place.

**In short:** Metal or ceramic support fixed to the shell that holds a monolithic lining in place. JJ Projects sources it to the specification the buyer names. Typical reference, form: V-type and other metallic anchors; ceramic anchors.

## Specification references

- Form: V-type and other metallic anchors; ceramic anchors
- Materials: Alloy selected for the lining temperature
- Installation: API 936 for installation quality control

> Typical references only. The governing specification is the one on your purchase order or datasheet.

## Typical uses

- Holding castable and gunned linings to steel shells
- Fired heaters, boilers, reformers and furnaces
- Ducts, stacks, cyclones and reactor vessels with monolithic lining
- Repairs where anchors have burned out or loosened

## What to include in a request

A request with these details can be quoted without a round of questions. Send what you have and we will ask for the rest.

1. Anchor type and shape, for example V-type, Y-type or other metallic style, or ceramic anchor
2. Alloy, chosen for the temperature at the anchor, which is lower than the hot face temperature
3. Anchor dimensions, and the lining thickness it must hold
4. Spacing and layout pattern from the lining design, with the number of anchors
5. Method of attachment, for example welded to the shell
6. Quantity, and installation quality control, for example API 936
7. Documents: material test report for the alloy where required

[Request this item](https://jjprojectsok.com/request-a-quote?item=v-anchor)

## Questions

### How are anchors selected?

By the lining thickness and type, the temperature, the orientation of the surface and the vibration or thermal movement. These come from the lining design or the refractory supplier. Send the lining drawing or specification.

### What is API 936?

API 936 is the API recommended practice for quality control of the installation of monolithic refractory linings, including inspection and testing during application. It is referenced in the project specification, not a rating of the anchor itself.

## Related items

- [Lined wall system](https://jjprojectsok.com/products/refractory/lined-wall-section): Anchored layered refractory wall systems for fired heaters, reformers and boilers, referencing ASTM C401, API 936 and API 560, and what a lining request needs.
- [Firebrick](https://jjprojectsok.com/products/refractory/firebrick-stack): Fireclay and high-alumina firebrick and insulating firebrick sourced to ASTM C27 and C155, in straights and special shapes, and request details.
- [Steel plate](https://jjprojectsok.com/products/steel-structural/plate-stack): Steel plate cut to size in carbon, alloy and stainless grades such as ASTM A36, A516 Grade 70 and A240, with the details a plate request should carry.

## Guides

- [Refractory lining basics: materials, anchors](https://jjprojectsok.com/knowledge/refractory-lining-basics): How refractory linings work in heaters, boilers and reformers: dense and insulating castables, firebrick, ceramic fiber, anchors, and why dry-out matters.
- [How to write an RFQ for industrial materials](https://jjprojectsok.com/knowledge/how-to-write-an-rfq): What an RFQ for industrial materials must specify: item, size, schedule or class, grade, standard, quantity, MTRs, inspection, packing and Incoterm.

[All refractory](https://jjprojectsok.com/products/refractory)