Selection guide / ball valves

One-piece, two-piece or three-piece ball valve?

The right comparison depends on service, maintenance access, connection, pressure, size and the document requirements of the project.

Body construction

One-piece bodies are compact and commonly selected where removal or internal access is not the primary requirement. Two-piece designs separate the body into connected sections. Three-piece designs can make inspection, cleaning or component replacement more practical, depending on the exact construction.

Full bore and reduced bore

A full-bore passage is closer to the pipe inside diameter and may be relevant where pressure loss or pigging matters. A reduced-bore valve may be smaller or more economical for a given nominal line. The choice belongs in the line design, not only the product title.

High platform and actuation

A high-platform pattern can provide a mounting interface for an actuator or accessory. Confirm the mounting pattern, stem design, torque requirement and available space before choosing an actuator package.

RFQ questions

  • One, two or three-piece construction?
  • Full bore or reduced bore?
  • Manual handle or actuator-ready platform?
  • Threaded, welded or flanged ends?
  • Material, seat and test-document scope?
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