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Ball Valves

3-Piece Threaded Ball Valve

  • 3-Piece Body, Quick In-Line Repair: Its core advantage allows for the rapid replacement of the ball and seats without removing the entire valve, making maintenance extremely convenient.
  • Threaded Connection: Utilizes universal thread standards for easy installation in various small to medium-sized pipelines.
  • Full Bore, Low Flow Resistance: The internal flow path is equal to the pipe diameter, ensuring smooth flow and minimal pressure loss.
  • High Platform Design (Optional): Some models feature an ISO 5211 standard high platform for the direct mounting of pneumatic or electric actuators, facilitating easy automation.
  • Locking Device: The handle is often equipped with a locking hole to secure the valve in the fully open or closed position, preventing accidental operation.
Download Spec

The 3-Piece Threaded Ball Valve is a type of ball valve assembled from three separate components—a central body and two end caps—clamped together by four or more long bolts. Its most significant advantage is the exceptional ease of in-line maintenance. When service or replacement of internal seals is required, the central body section can be completely removed from the pipeline simply by detaching the bolts, while the end caps remain in place. This design drastically simplifies the maintenance process and reduces downtime, making it ideal for applications where maintenance efficiency is critical.

General Technical Parameters

Parameter Specification
Nominal Diameter (DN) DN15 - DN100 (1/2" - 4")
Pressure Rating 1000 WOG, PN1.6 - PN6.4 MPa
Applicable Temperature -20°C ~ 180°C
Body Material Stainless Steel (CF8, CF8M, WCB)
Ball Material Stainless Steel (304, 316)
Seat Material PTFE
Connection Female Thread (NPT, BSPT, BSP)
Actuation Manual, Pneumatic, Electric

No drawing available.