Choosing the primary valve category
Start from the feature driving the purchase: ball support, maintenance access, pressure shell construction, isolation arrangement or seating system.
Avoid false equivalence
Do not use DBB and DIB interchangeably. Do not use fully welded and butt weld interchangeably. Do not treat material grade as proof of the complete valve assembly composition.
Information required for a price offer
Prepare size, class, medium, temperature, material list, ends, operating method, seat design, testing requirements, documents, quantity and destination.
Material grades, pressure classes, valve dimensions, tests and certification requirements must be confirmed for the actual offered configuration. No stock status or certification is implied by this page.
Frequently asked questions
Which is better: floating or trunnion?
Neither is universally better; valve size, pressure, torque, duty and project design decide the selection.
Can a top-entry valve be metal seated?
Yes, these terms describe different design dimensions. Confirm the available construction.