---
title: 'Valve Concentricity & Runout Explained'
url: 'https://valverefacer.com/runout'
markdown: 'https://valverefacer.com/runout.md'
date: '2026-09-24'
description: "What valve concentricity and runout mean, why an off-center or wobbling valve face won't seal, and how both are controlled when refacing valves."
taxonomy:
  archives_month:
    - sep_2026
  archives_year:
    - '2026'
---

# Valve Concentricity & Runout Explained

---

## Navigation

- Previous: [Valve Inspection & Cleaning Before Grinding](https://valverefacer.com/valve_inspection.md)
- Next: [How to Dress a Valve Grinding Wheel](https://valverefacer.com/dressing.md)
