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

The 3" x 3" Figure 1502 Gear Operated Plug Valve is a high-capacity, heavy-duty flow control component engineered for the safe, reliable management of maximum-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, large-scale cementing, and high-rate well-testing operations.

The critical advantage of this large-bore valve is its integrated Gear Operator. At a 3-inch bore size, the internal surface area subjected to 15,000 PSI of differential pressure is massive, making standard manual wrench or bar actuation extremely difficult, erratic, and potentially dangerous for field personnel. The heavy-duty, enclosed worm gear mechanism provides a significant mechanical advantage, allowing a single operator to easily, smoothly, and precisely open or close the line using a standard handwheel. This ensures controlled fluid throttling, eliminates the risk of "water hammer" from opening lines too quickly, and drastically reduces physical strain on the operator.

Constructed from premium forged alloy steel, the valve incorporates high-grade elastomeric seals, specialized backup rings, and a precision-machined cylindrical plug to ensure long-lasting, leak-free performance even under heavy proppant loads. Configured with industry-standard Figure 1502 Male (Wing Nut) x Female (Thread) hammer union ends, this gear-operated valve integrates seamlessly into standard 15M "big iron" frac spreads, delivering massive fluid capacity combined with effortless manual control.

Features & Benefits

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

• Integrated Gear Operator: Heavy-duty enclosed gearbox and handwheel provide massive mechanical advantage, ensuring effortless, safe, and precise manual operation under maximum differential pressure.

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

• Controlled Actuation: The gear mechanism prevents rapid, uncontrolled opening or closing of the valve, protecting the downstream pipeline from dangerous pressure spikes (water hammer).

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

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

Specifications & Technical Details

Applications

This high-pressure, large-bore gear-operated 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 precise control and isolation barrier on severe-service flowback spreads, and anywhere standard 3-inch 15M iron is deployed and field personnel require safe, easy manual operation without the need for rig air or hydraulic power.

Quality Assurance

Each gear-operated plug valve undergoes stringent oilfield quality control testing before deployment. This includes high-pressure hydrostatic body and seat shell tests under full load, operational testing of the gear mechanism to ensure smooth torque transfer, magnetic particle inspection (MPI) on critical welds and unions, and full material traceability (MTRs) to verify compliance with strict API safety standards.

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