3" x 3" Fig 1502 Plug Valve (LT - Low Torque) M x F | 15,000 PSI High-Pressure Flow Control

The 3" x 3" Figure 1502 Low Torque (LT) Plug Valve is a high-capacity, heavy-duty flow control component engineered for the safe, reliable management of full-volume, high-velocity abrasive fluids in extreme upstream environments. Featuring a massive full 3-inch internal bore, this valve is designed to handle immense pump rates while virtually eliminating flow turbulence and destructive pressure drops. Rated for a highly secure 15,000 PSI Cold Working Pressure (15M CWP), it provides unparalleled structural safety and bubble-tight shutoff during intense hydraulic fracturing, severe-service flowback, cementing, and large-scale well-testing operations.

The defining operational advantage of this large-bore valve is its highly efficient Low Torque (LT) internal architecture. Operating under extreme 15,000 PSI differential pressure on a large 3-inch surface area can cause standard manual valves to bind, requiring excessive force to actuate. The LT design utilizes specialized high-strength bearings and floating seal segments to significantly reduce friction against the precision-ground cylindrical plug. This ensures that field operators can easily, smoothly, and safely open or close the line manually—even under maximum pressure—reducing physical strain and improving response times during critical high-rate pumping operations.

Constructed from premium forged alloy steel, this rugged manual plug valve incorporates high-grade elastomeric seals and specialized anti-extrusion backup rings that wipe the plug surface during every cycle, preventing abrasive proppant entrapment. Configured with standard Figure 1502 Male (Wing Nut) x Female (Thread) ends, this 3" x 3" valve integrates seamlessly into high-pressure "big iron" frac spreads and choke manifolds, delivering massive fluid capacity combined with dependable, easy-to-operate fluid isolation.

Features & Benefits

• 15,000 PSI Working Pressure (15M): Designed to safely contain and isolate large-volume fluid lines operating under extreme upstream stimulation pressures up to 15,000 PSI CWP.

• Low Torque (LT) Design: Advanced internal bearing and floating seal architecture radically reduces friction, ensuring smooth, non-stick manual operation under full load.

• Full 3-Inch Bore: Accommodates extreme flow rates and highly abrasive proppant slurries while drastically minimizing flow turbulence and internal fluid erosion.

• Rugged Forged Construction: Machined from a single solid alloy steel forging for superior structural strength, high fatigue resistance, and safe energy containment.

• Male x Female Connections: Features standard Fig 1502 hammer union ends for fast, highly secure integration into existing 15M large-bore flowline networks.

• Replaceable Internal Liners & Seals: Designed for straightforward field maintenance, utilizing high-density inserts that absorb abrasive wear and shield the main valve body.

Specifications & Technical Details

Applications

This high-pressure, large-bore LT plug valve is an essential safety and operational asset for heavy-duty oilfield sites. It is ideally utilized as a primary master or wing valve on high-rate fracturing manifolds, a dependable isolation barrier on severe-service flowback spreads, an active control valve within large well-testing layouts, and any application requiring maximum 3-inch fluid flow combined with effortless manual operation.

Quality Assurance

Each LT plug valve undergoes stringent oilfield quality control testing before deployment. This includes extensive high-and-low pressure hydrostatic body and seat shell tests under full load, precise torque testing to verify the Low Torque operational threshold, magnetic particle inspection (MPI) on critical welds and unions, and full material traceability (MTRs) to verify compliance with strict API and international safety standards.

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