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This rare image is from the 1882 Chapman Valve Company catalog. It shows an integrally cast mounting for a cast bypass assembly. In the days…

This is a portion of one of the material pages from the 1923 Crane catalog #23. It clearly describes the infamous Crane swastika logo that…

This odd check valve design was actually used by several manufacturers during the 20’s and 30’s. I guess maintenance was a problem because…

This page, from the Powell 1911 Catalog #10, shows a typical steam valve of that era. The lack of bolt holes was common in early valve…

This ad was in a special pamphlet distributed by Vogt during the 30’s called, “Vogt Products for the Refinery.” Actually, the Vogt design…

A unique double-stem design is shown from the Rensselaer 1925 catalog. Notice the open gearing that would never get past today’s OSHA…

This image from the 1925 Rensselaer Valve Company 1925 catalog shows two 42” 300 WOG valves loaded on a flatcar for shipment. Rensselaer…

This ad was also from the Vogt refinery book and features a unique testing set-up and procedure: 3500 psi for 24 hours! That is quite a…

Part 1 - AIMs-Article on repair of flange bolt holes Part 2 - AIMs-Shop Repairs on Ball Valves Part 3 - AIMs-De-Oiling in Steam Assisted…

Brittleness in Carbon Steels A case study on casting weld repairs Castings: An Introduction and requirements in review of valve casting…

Isolation Basics - Part 1 Isolation Basics - Part 2 Isolation Basics - Part 3, Effective Isolation of Liquid Pipelines Isolation Basics…

Drone Emission Monitoring Emissions Containment: past levels may be unacceptable in the Present Update on Emissions Reduction and Monitoring…