3" FIG 1502 5-Valve Dual Choke Manifold | 15,000 PSI High-Pressure Flow Control

The 3" FIG 1502 5-Valve, 2-Choke Manifold is the critical pressure-control nerve center for high-rate oilfield flowback, well testing, and frac drill-out operations. Positioned downstream of the wellhead and trash catcher, this heavy-duty skid-mounted manifold is tasked with safely stepping down extreme wellbore pressures before the fluid stream enters the test separators, sand traps, or atmospheric tanks.

The advanced 5-valve, dual-choke configuration is specifically engineered for continuous, uninterrupted well flow. It splits the incoming high-pressure stream into dual flow paths, typically outfitting one side with an adjustable choke (for precise, real-time pressure manipulation during initial well cleanup) and the other side with a positive/fixed choke (for highly accurate, steady-state flow measurement).

The 5-valve architecture—utilizing heavy-duty, high-pressure plug or gate valves—allows operators to seamlessly divert flow from one choke to the other. If an adjustable choke stem washes out from abrasive frac sand, or if a fixed choke bean needs to be resized to match changing well conditions, field technicians can isolate the necessary path, bleed off the pressure, and perform repairs without ever shutting in the well. Built from premium forged alloy steel and rated for 15,000 PSI (FIG 1502), this 3-inch full-bore manifold maximizes fluid throughput while maintaining absolute pressure control.

Features & Benefits

• Continuous Dual-Path Operation: The 5-valve configuration allows operators to bypass flow to a secondary choke, enabling safe, zero-downtime maintenance or choke bean changes on the primary line.

• Versatile Choke Setup: Typically configured with one adjustable choke for dynamic pressure step-downs and one positive choke for fixed-orifice flow measurement (customizable based on well requirements).

• Extreme Pressure Containment: Fully rated for 15,000 PSI Cold Working Pressure (CWP), featuring standard 3-inch FIG 1502 hammer union connections for safe, leak-free rig-ups.

• High-Volume 3" Capacity: The full 3-inch internal bore handles massive volumes of frac fluid and produced gas, significantly reducing restrictive pressure bottlenecks across the manifold.

• Abrasion & H2S Resistant: Manufactured with hardened internal components to resist the severe scouring of high-velocity sand, with NACE MR0175 compliant options available for sour gas (H2S) environments.

Specifications & Technical Details

Applications

The 3" 5-Valve Dual Choke Manifold is mandatorily deployed during well testing, flowback operations, and underbalanced drilling. It is used to safely bleed down high-pressure wells, control the flow rate of returning frac fluids, and protect downstream, lower-pressure separation equipment from catastrophic over-pressurization.

Quality Assurance

Engineered in strict accordance with API 6A and API 16C specifications for choke and kill equipment. All pressure-retaining bodies, valves, and choke housings undergo rigorous non-destructive testing (NDT), including ultrasonic (UT) and magnetic particle (MPI) inspections. The entire manifold assembly is hydrostatically pressure tested to 22,500 PSI prior to field deployment to guarantee absolute safety and structural integrity.

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