4-1/16" 5K (5M) Manual Operated FC Type Gate Valve – Oil & Gas Flowline Valve

The 4-1/16" 5K Manual Operated FC Type Gate Valve is a high-capacity, heavy-duty flow control valve engineered for the safe isolation and dependable regulation of high-pressure fluids in demanding upstream oil and gas operations. Rated for a cold working pressure of 5,000 PSI (5K / 5M), this manual gate valve features a large full-bore 4-1/16" opening to provide unrestricted fluid flow, effectively eliminating turbulence and minimizing pressure drops across large-volume wellhead and manifold systems.

Based on the industry-proven "FC" style design, this valve features a highly reliable floating slab gate and a true metal-to-metal sealing mechanism (gate-to-seat and seat-to-body), ensuring bi-directional pressure containment and exceptional resistance to abrasive drilling fluids, mud, and hydrocarbons. The robust forged alloy steel body and bonnet are designed to withstand the internal stresses of continuous production, heavy well testing, and severe choke-and-kill applications.

Operated via a heavy-duty manual handwheel, the valve incorporates a non-rising stem design combined with high-quality thrust bearings. This critically reduces operating torque, allowing field operators to safely and smoothly open or close the valve even under significant pressure differentials. Fully compliant with API 6A standards, this FC type gate valve guarantees reliable field interchangeability, straightforward inline maintenance, and uncompromising pressure containment in harsh operational environments.

Features & Benefits

• High-Capacity 5,000 PSI Containment: Engineered to safely manage high-pressure upstream environments with a 5,000 PSI (5K) working pressure rating and a large 4-1/16" bore.

• Proven FC Type Design: Fully interchangeable with standard "FC" style components, ensuring widespread industry familiarity and easy, cost-effective sourcing of replacement parts.

• Metal-to-Metal Sealing: Utilizes specialized metal-to-metal seals between the gate and seat, as well as the seat and body, providing a highly durable barrier against abrasive fluids and harsh well conditions.

• Low Operating Torque: Features a non-rising stem paired with heavy-duty thrust bearings, ensuring smooth and manageable manual operation under full working pressure.

• Bi-Directional Flow: The floating slab gate design allows the valve to effectively seal pressure from either direction, maximizing installation flexibility and system safety.

• Forged Alloy Steel Construction: Delivers exceptional structural integrity, effectively resisting severe mechanical impacts, thermal shock, and aggressive field corrosion.

Specifications & Technical Details

Applications

This large-bore 4-1/16" 5K manual FC type gate valve is a critical structural hub for high-volume, high-pressure upstream fluid control. Typical applications include serving as master or swab valves on standard wellhead trees, isolating flow on high-capacity choke and kill manifolds, regulating large-scale flowback procedures, and safely containing high-pressure environments in production networks.

Quality Assurance

Each FC type gate valve undergoes the most stringent quality control protocols, including severe hydrostatic body and seat testing, complete dimensional verification, precision seal inspection, and full material traceability (MTRs), ensuring strict compliance with API 6A and API Q1 standards for dependable, safe field performance.

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