{"id":10861,"date":"2026-07-20T03:22:38","date_gmt":"2026-07-20T03:22:38","guid":{"rendered":"https:\/\/ntgdvalve.com\/?p=10861"},"modified":"2026-07-20T05:28:16","modified_gmt":"2026-07-20T05:28:16","slug":"ball-valve-end-connection-types","status":"publish","type":"post","link":"https:\/\/ntgdvalve.com\/pt\/ball-valve-end-connection-types\/","title":{"rendered":"Tipos de conex\u00e3o das v\u00e1lvulas de esfera: flangeada, rosqueada, para solda por encaixe e para solda de topo"},"content":{"rendered":"
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Author Name:<\/strong> Bruce Zheng<\/p>\n

Author Role:<\/strong> Co-Founder and Valve Engineer at NTGD Valve<\/p>\n

Author Bio:<\/strong> Bruce Zheng is Co-Founder and Valve Engineer at NTGD Valve, focusing on industrial valve selection, application, and technical content for global B2B buyers.<\/p>\n

Last Updated:<\/strong> July 17, 2026<\/p>\n<\/div>\n

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Quick Answer<\/strong><\/p>\n

The four core industrial ball valve end connection types<\/strong> are flanged, threaded, socket weld, and butt weld. Here, ball valve connection types<\/strong> refers specifically to the valve-to-pipe interfaces\u2014not body construction, port design, ball support, or actuation.<\/p>\n

Flanged joints use mating flange faces, a gasket, and bolting. Threaded ends use compatible male and female threads with the required sealing method. Socket weld ends accept the pipe inside a recessed socket before external welding, while butt weld ends align the prepared valve and pipe ends directly before welding.<\/p>\n

Flanged and threaded connections may support planned removal, although actual serviceability depends on piping support, clearance, corrosion, isolation points, and layout. Socket weld and butt weld connections normally form permanent piping joints and usually require cutting and rework for complete valve removal.<\/p>\n

No connection is universally best. Selection must consider the piping interface, pressure and temperature, fluid, maintenance strategy, applicable standards, external loads, and the available valve design. The actual removal path directly affects shutdown planning, spare-valve strategy, and whether the RFQ must specify flange-separation clearance, a union, a removable spool, or a welded replacement plan.<\/p>\n

A wafer-pattern ball valve is treated separately because it is a special flange-mounted arrangement rather than a fifth parallel pipe-end preparation.<\/p>\n<\/div>\n

Choosing an end connection affects more than how the valve is attached to the pipeline. The joint determines where an external leakage path may exist, what installation controls are required, how the valve can be removed, and what information must be stated in the purchase specification.<\/p>\n

Two valves may use the same ball, seats, body material, and actuator while having different pipe-end connections. Conversely, two valves with the same end connection may have different body constructions, port designs, pressure-temperature limits, or seat systems. End connection selection is therefore one part of the complete valve specification, not a substitute for it.<\/p>\n

This guide defines the classification boundary, compares the four core connections, and maps common project conditions to an initial selection direction. Final suitability must be checked against the project specification, connection requirements, approved manufacturer drawings, and the complete valve datasheet.<\/p>\n

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