Resilient Seated vs. Metal Seated Butterfly Valve
The Short Answer A resilient-seated butterfly valve uses an elastomer seat (EPDM, NBR, Viton) that grips the disc for bubble-tight […]
Materials & Corrosion
Valve Materials
Valve materials determine how a valve performs under pressure, temperature, and corrosion, so selecting the right body, seat, and trim material is a core part of any valve decision. This tag collects articles on carbon steel versus stainless steel valves, seat material options such as PTFE, rubber, and metal, trim components and why they matter, and corrosion considerations for common process fluids. Content also covers material compatibility basics, coating and lining options, and how material choice affects cost and service life. Written for engineers and buyers who need practical material guidance for their applications.
Materials & Corrosion
Stainless Steel Butterfly Valve: When It’s Worth the Cost
Quick Answer A stainless steel butterfly valve is worth the cost when the line carries corrosive media, requires sanitary finishes, […]
Materials & Corrosion
Stainless Steel Ball Valve: Grades, Applications & Selection
Quick Answer Choose a stainless steel ball valve when the media is corrosive, hot, or must stay clean: chemicals, seawater, […]
Materials & Corrosion
Valve Seat Materials: EPDM, Viton, NBR, and PTFE Compared
Quick Answer Valve seat materials determine sealing performance, temperature limits, and chemical compatibility. The most common soft seat materials are […]
Materials & Corrosion
Brass vs. Stainless Steel Ball Valve: Which to Choose
Quick Answer Choose a brass ball valve for low-cost water, air, and general utility service up to about 200°F (93°C). […]
Materials & Corrosion
Valve Coatings and Linings: Protecting Against Corrosion
Quick Answer: How to Protect Valves with Coatings and Linings Valve coatings and linings protect the body and wetted parts […]
Materials & Corrosion
Duplex vs. Super Duplex Stainless Steel: Choosing Valve Materials
Quick Answer: Duplex vs. Super Duplex Stainless Steel for Valves Choose duplex stainless steel for valve bodies when you need […]
Glossary
What Is Valve Trim? Components, Materials, and Why It Matters
The Short Answer Valve trim is the collective term for the replaceable internal parts of a valve that are in […]
Materials & Corrosion
PTFE vs. Metal Seated Valves: When to Use Which
The Short Answer Choose PTFE (soft) seats when you need bubble-tight shutoff, clean media, and temperatures up to about 200°C […]
Materials & Corrosion
Selecting Valve Body Materials: Cast Steel, Stainless Steel, and Alloys
The Short Answer Match the valve body material to the media corrosivity, design temperature and pressure, and cost target. For […]