#MATERIALS

Technical

Which Valve for Nitric Acid Service?

Q: I requested CF8 valves but the supplier is offering CF8M valves at less cost.
#materials #maintenance-repair

Technical

ASCO Introduces Stainless Steel Pilot Valves for Offshore Applications

ASCO Numatics has introduced the 8361 Series of stainless steel pilot valves.
#solenoids #materials

Applications

Materials Selection for Deepwater Gate Valves

With the discovery of oil and gas in water depths thousands of feet below the surface, selection of valves is more important, difficult and complicated.
#materials #gate-globe-check #water-wastewater

Technical

HIC Testing

Q: I’m working on an order in which the customer’s material specification imposes HIC testing.
#materials

Technical

Cobalt-base Alloy 6

Q: Is there a problem using cobalt-base Alloy 6 material in amine applications in refineries and gas treatment plants?
#materials

Design

CRANE ChemPharma Flow Solutions Debuts Krombach MSBV Video Surrounding Product Launch

CRANE ChemPharma Flow SolutionsTM, a leading provider of highly engineered products for fluid handling applications worldwide, recently announced the online debut of its overview video for the Krombach Metal Seated Ball Valve (MSBV). Featuring a detailed parts and assembly animation, this video, which can be found on the company's website, highlights the essential design features that give Krombach's MSBV its special leak-protection capabilities.
#ball-butterfly-plug #materials

Technical

Cast or Forged?

Q: Should I be concerned whether my valve is cast or forged?  
#materials

Technical

ASTM A182

Q: In the last Materials Q&A column, you discussed using forged bar to make hubbed-flange components such as bonnets.
#materials #components #standards

Technical

CAMERON: Enhanced Triple Offset Butterfly Valve

Cameron Valves & Measurement now offers the WKM® TriAx™ triple offset butterfly valve, which provides the same reliable, metal seating, zero leakage, cost-efficient features that the company’s triple offset valves have come to be known for, however, the TriAx also offers some superior and unique features.
#ball-butterfly-plug #materials

Technical

ASTM-A105

Q: I have a material certification for bar material that indicates compliance with ASTM A105.
#materials #standards

Design

Today’s Coatings Provide Solid Protection for Valves

Like anything made of metal, valves are subject to corrosion and other natural forces that compromise their performance.
#materials

Technical

Ni-Cr-Mo Alloys

Q: How do I know what the best type of Ni-Cr-Mo alloy will be for a particular application?  
#materials

Technical

Welding Procedure

Q: I need to qualify a welding procedure specification per Section IX of the ASME Boiler and Pressure Vessel Code.
#materials #standards #pressure-relief

Technical

Choosing the Right Fasteners

Q: What do I need to know to choose the right fasteners for my valves?
#materials

Technical

NACE MR0103 and Duplex Stainless Steels

Q: Why are some suppliers reluctant to produce duplex stainless-steel valves that are compliant with NACE MR0103?  
#materials

Insights

Industry, Government Strike Back at Metal Thieves

The theft of valves for their scrap metal value that began several years ago continues, although law enforcement, legislatures and industry associations are increasingly recognizing the seriousness of the problem.
#VMAnews #materials

Technical

Indices that Measure Water Scaling

Q: Why do my carbon steel valves and piping corrode when the Langlier index says they shouldn’t?  
#materials #water-wastewater

Education

The A to Z of Valve Materials

If you walk through any large PVF warehouse and look around, it seems that valves come in three flavors: black, silver and gold.
#basics #materials

Technical

Conversion of Hardness

Q: Are there any issues regarding conversion of hardness from one method or scale to another?
#materials

Technical

Portable Hardness Testers and NACE Sour Service Standards

Q: Are portable hardness testers adequate for verifying the hardness of parts for compliance to industry standards such as the NACE sour service standards?
#materials #standards #maintenance-repair