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United Valve Articles – Valve Information

Testing, Testing: Today’s Valve Standards

Testing, Testing: Today’s Valve Standards

by Greg Johnson, reprinted from the spring, 2007 issue of Valve Magazine

The increase in globally sourced products and much-reduced domestic manufacturing has caused everyone in the valve supply chain to request and require more testing. Here’s a look at some of the most common valve testing standards in use today.

Testing, Testing: Today’s Valve Standards

Why Valve Qualification Programs?

by Greg Johnson, reprinted from the winter, 2006 issue of Valve Magazine

As the valve world continues to turn and tilt its production towards new countries and their untested manufacturing plants, the potential backlash is a rise in quality issues.

Why Valve Qualification Programs?

The Ever-Popular Gate Valve

by Greg Johnson, reprinted from the spring, 2005 issue of Valve Magazine

This low-tech valve may not have changed much in the last 100 years, but the gate valve plays a major role in virtually every refinery, chemical plant and industrial facility in the world.

The Ever-Popular Gate Valve

The Gate Valve’s Long History

by Greg Johnson, reprinted from the spring, 2005 issue of Valve Magazine

The ubiquitous gate valve has a long history of serving the flow control industry in the United States.

Valve Magazine - Repair - “Valve Repair, Challenges & Changes”

Valve Magazine – Repair – “Valve Repair, Challenges & Changes”

by Greg Johnson, reprinted from the summer, 2004 issue of Valve Magazine

Who Moved my Cheese? The heck with who moved my cheese, who moved my valve repair customers!

Valve World - Modification - “Valve Modification Complements the Supply Chain”

Valve World – Modification – “Valve Modification Complements the Supply Chain”

by Greg Johnson, reprinted from the April, 2004 issue of Valve World Magazine

In a perfect world of valve supply and demand, an end-user would be able to purchase any combination of valve configurations from the distributor with only a few days notice. In order to meet the demand for these specials in the United States, the valve modification industry was created.

Chemical Processing - “Thwarting Valve Troubles: A Valve Owner’s Survival Guide”

Chemical Processing – “Thwarting Valve Troubles: A Valve Owner’s Survival Guide”

by Greg Johnson, reprinted from the May, 2002 issue of Chemical Processing Magazine

It’s a jungle out there, so the saying goes. Unfortunately, that jungle extends to and includes your work environment.

Valve repair in the 21st Century - “Valve Repair in the 21st Century”

Valve repair in the 21st Century – “Valve Repair in the 21st Century”

by Greg Johnson, reprinted from the fall, 2001 issue of Valve Magazine

Valve repair in the 21st Century promises to be technologically advanced, with data and digital imagery being exchanged between the repair facility and the end-user.

Valve Magazine - valve standards LR - “Valve Standards in the Petrochemical & Refining Industry”

Valve Magazine – valve standards LR – “Valve Standards in the Petrochemical & Refining Industry”

by Greg Johnson, reprinted from the summer, 1996 issue of Valve Magazine

Today’s valve standards are dynamic documents that reflect sound engineering practice, changes in market demands and changes in technology and manufacturing procedures.