#MATERIALS

Insights

What’s Your Temperature?

For decades, valve manufacturers have provided the maximum recommended working pressures and temperatures for their products, based on the materials used in the pressure-containing parts.

Education

Valve Forum + Basics Provides Multiple Ways to Learn and Connect

One of the advantages of having VMA’s Valve Forum and Valve Basics program as a virtual event is that attendees have access to the materials and information up to a month after the event is held.

Technical

The Materials That Make Up Valves

EDITOR’S NOTE: Materials used in the manufacture of valves and how they perform in different applications is a topic of huge interest to everyone who works with valves.

Technical

Welding Specifications Issues

Q: I need to qualify a welding procedure specification per the ASME Boiler and Pressure Vessel Code.

Technical

Innovative Micro-porous Material Offers New Carbon Capture Options

A relatively new class of engineered materials known as metal-organic frameworks (MOFs) may provide an effective alternative for capturing carbon dioxide (CO2) from fossil fuel combustion emissions, which makes it a significant new option in emissions reductions.

Education

The Valve Industry Finds Value in ESG Initiatives

The valve manufacturing industry in North America is one of the industries that have embraced this new way of thinking and is leading the way with the integration of environmental, social, and governance (ESG) initiatives. These initiatives range from valves designed to mitigate climate change to community involvement activities.

Technical

Accelerating Manufacturing Operations with High-Strength Plastic 3D Printing

3D printing in a factory 3D printing encompasses a family of processes that involve building up a plastic or metal part in an incremental layer-by-layer fashion.

Applications

Valves in Space

All of these valves need to be built to precise fits and finishes and to stringent performance requirements because “On a spacecraft, everything has got to work. If it breaks, you’re done,” he said.

Technical

3D Printing Materials

Q: 3D printing and additive manufacturing have become buzz words in various industries, but what do they mean in the context of valves, and what materials are involved?

Technical

Material Q&A: Elastomer and Plastic Materials

Question: What is the difference between plastic and elastomer?

Technical

Hardfacing for Valves: Materials and Processes

Valve internals, such as seats and closures, are often at risk of erosion, abrasion, corrosion, galling and damage from cavitation.

Technical

Conval: Camseal Metal-Seated Ball Valves Feature New Stem Position Indicator Disc

Conval recently announced that its popular Camseal© metal-seated, forged ball valves feature a new Stem Position Indicator Disc for easy, precise on-site identification and inspection of the open-close status of the valve.

Technical

Creep Strength Enhanced Ferritic Materials in Thermal Power Applications

The designers of modern thermal power plants continue to work hard to improve plant efficiency by increasing the heat rate as a function of main-steam pressure and temperature.

Technical

Understanding Surface Finish in Metal 3D Printing of Valves

While metal AM provides a host of positive advantages, it’s important to understand the realities of as-printed surface roughness.

Design

The Challenges of Chlor-Alkali

With the introduction of new materials and the evolution of valve design over the years, the days when fluid handling operators were limited by the number of valve types available to control the process are long gone.

Education

The Magic Behind the Metal

Like the superhero that can leap tall buildings, the valve industry is made of steel.

MRO

Gaskets Are Not Created Equal

Gaskets are near the bottom of the food chain of valve components; trim, body materials and packing seem to get a lot more press.

Technical

Metal Additive Manufacturing in the Valve Industry

Metal Additive Manufacturing (AM) is a fascinating technology that has gained acceptance over the past several years.

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.

Technical

Passivation and Pickling

Q: I have customers that ask for their stainless-steel valves to be pickled and I have others who ask for them to be passivated.

Technical

Thermal Spray Coating

Q: What are the pros and cons of using a thermal spray coating like HVOF?

Technical

Magnetic Particle Examination: Not the Only Way to Test for Flaws

Magnetic Particle Examination (MT) is a popular, relatively low-cost method to perform nondestructive examination on ferromagnetic materials.

Technical

The New Version of NACE MR0103

Q: How do the requirements in this International Organization for Standards (ISO) document differ from those in the previous version?

Technical

Portable Alloy Verification Devices

Q: What are the differences between the results you get from a portable alloy verification device and the results you see on a supplier’s certified materials test report (CMTR)?

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