The Manual
REACH OUT TO US
Solve for Long-Term Vacuum Reliability
If you're maintaining or specifying vacuum systems for lab, industrial, or R&D environments, the Welch DuoSeal Belt Drive Model 1405 is a known workhorse. Its oil-sealed rotary vane design delivers deep vacuum levels with long service intervals, making it a preferred choice for applications that demand consistent performance over time.
This page links directly to the official product manual for the DuoSeal 1405, published by Welch. It covers installation, operation, maintenance, troubleshooting, and parts replacement.
What’s Inside the Manual
- Specifications: Pumping speed, ultimate pressure, oil capacity, motor ratings, and dimensions.
- Installation Instructions: Guidelines for mounting, electrical setup, and oil filling.
- Operation Procedures: Start-up, shutdown, and best practices for continuous use.
- Maintenance Schedule: Oil change intervals, belt tensioning, and cleaning.
- Troubleshooting Guide: Common issues like low vacuum, noise, or overheating.
- Parts List & Diagrams: Exploded views and part numbers for ordering replacements.
FAQs
It reaches an ultimate pressure of 1 x 10⁻⁴ Torr, suitable for most lab and industrial applications requiring deep vacuum.