Product Overview

The Manual 3-Piece Welded Ball Valve is a rugged, hand-operated fluid isolation valve built for heavy-duty industrial environments. Operated via a high-leverage manual handle, this valve offers quick, reliable quarter-turn (90-degree) shut-off.

The 3-piece welded design (available in Butt Weld and Socket Weld) provides a permanent, leak-proof joint that withstands heavy pipeline vibrations and thermal expansion. Its swing-out design allows maintenance teams to easily unbolt and slide out the center body section for fast seal servicing without disturbing the welded end caps on the pipeline.

Key Features & Mechanical Design

• Ergonomic Manual Operation: Equipped with a heavy-duty stainless steel lever handle encased in a vinyl sleeve for comfortable, slip-free manual operation.

• Built-in Locking Device: Features an integrated safety latch mechanism that allows the valve to be padlocked in either the fully open or fully closed position, preventing accidental or unauthorized operation (Safety Tag-out/Lock-out compliance).

• Weld-Protection 3-Piece Architecture: The center section can be completely unbolted and removed during pipeline installation. This protects the internal soft PTFE seats from high temperatures while welding the end caps directly onto the pipe.

• Full Port Flow Efficiency: A full bore internal design ensures the flow path matches the pipe's interior diameter perfectly, delivering maximum Cv values and eliminating pressure drops.

Technical Layout & Dimensions

Below is the standard dimensional blueprint for both the Butt Weld (BW) and Socket Weld (SW) configurations.

[Technical Drawing Placeholder]

Drawing View Guide:

• L: Face-to-Face Length

• H: Overall Height (From center of pipe to top of handle)

• W: Handle Length

• d: Port Bore Diameter

• D / D1: Weld End Outside/Inside Diameters (BW) or Socket Depth/Diameter (SW)

(Note: The above data is for standard reference. Dimensions may vary slightly depending on material grades like Stainless Steel 304/316 or Carbon Steel WCB. Certified structural drawings can be provided upon order placement.)

Technical Specifications

• Pressure Rating: 1000 PSI / PN63 / WOG 1000 (Higher ratings such as 2000 PSI available upon request)

• Body Material Options: Stainless Steel CF8 (304), CF8M (316), Carbon Steel WCB

• Seat & Seal Material: Premium PTFE / RPTFE (PPL for high-temperature applications)

• Connection Standards: Butt Weld (BW) to ASME B16.25, Socket Weld (SW) to ASME B16.11

• Temperature Range: -20°C to 180°C (-4°F to 356°F) with PTFE seats.

• Testing & Inspection: Every single valve undergoes strict shell and seat pressure testing in accordance with API 598 before shipment.