01182018Thu
Last updateThu, 18 Jan 2018 7pm

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Technical

Interior Coatings for Waterworks Valves

Since the 1990s, two types of epoxy coatings have been commonly specified and used for iron valves in the waterworks industry: fusion-bonded epoxy and liquid epoxy. Both coatings are based on thermo-set epoxy systems with similar corrosion resistance and are described in the American Water Works Association’s Standard AWWA C550, “Protective Interior Coatings for Valves and Hydrants.”

Fusion-bonded epoxy is applied to preheated components in powder form in an electrostatic or fluidized bed process followed by thermal curing. Liquid epoxy is a two-component mixed material that is applied by spray, brush or other methods and chemically cures after application. The purpose of this article is to explain the typical requirements that apply to these coatings and compare some of their properties.


Offshore Production in a Low Oil-Price Environment

Three years ago, The Washington Post published an article called Key facts about the great oil crash of 2014. At the time, oil prices hovered around $70—and that was long before Jan. 20, 2016 when the 13-year low of $26.55/b sent the industry into a tailspin.

While smaller producers with limited access to capital were forced to shut down operations, others including shale producers tightened up on manpower and figured out ways to drill and operate much more efficiently.

Will Smart Machines Obsolete Human Resources?

Is artificial intelligence (AI) going to take over manufacturing jobs and the jobs of human resources professionals? That is a question that concerns many employees and human resources (HR) professionals. After all, you don’t need an HR department for robots.

But in today’s marketplace, manufacturers and distributors must be automated to be competitive. This kind of automation is constantly changing, and the degree of automation is accelerating almost daily. In a survey they conducted of hundreds of medium and large U.S.-based manufacturers and distributors, enterprise resource planning (ERP) provider Macola learned that 77% of manufacturers already automate their core business processes with software. Eighty-one per cent of respondents reported that investments in technology have led to reduced cost and increased revenue, while 76% reported that errors were reduced and 95% reported better customer service.

Is Valve Live Loading an Option?

Is Valve Live Loading an Option2Valves leak. There’s no getting around it. In fact, industry sealing experts have cited that 60% of all fugitive emissions are from valve leaks. In addition, it is estimated that 75% of these valves leak at the stem. Improvements in packing materials and design have led to significant reductions in emissions in all industries. However, any stem seal needs stress to be effective, and packing stress fails over time for a variety of reasons.

Managing Control Valve Reliability in the Arctic

“A sow and polar bear cub are walking across the east side of the pad. All personnel are advised to stay clear of that area,” Billy announced over the radio. Just a few moments later, the radio crackled again as he advised, “Current wind chill is minus 68 degrees, so everyone working outside must follow the work restrictions provided in your Alaska Safety Handbook.”

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