3" Fig 1502 Integral Pup Joint (M x F) – 5 FT | Sour Service (H2S) Flowline Pipe

The 3" Figure 1502 Integral Pup Joint (5 FT) for Sour Service is a highly specialized, heavy-duty flowline component engineered specifically for the safe transport of hazardous, hydrogen sulfide (H2S) rich fluids in demanding upstream operations. Measuring exactly 5 feet in length, this versatile straight pipe segment provides an optimal mid-range reach, making it essential for adjusting pipeline distances and connecting components within manifold spreads dealing with toxic sour gas. To comply with strict safety standards for H2S environments, this Figure 1502 component is explicitly derated to a highly secure 10,000 PSI Cold Working Pressure (10M CWP), ensuring fail-safe containment of lethal gases and corrosive fluids.

What strictly defines this pup joint is its NACE MR0175 / ISO 15156 compliant metallurgy combined with a 100% Integral construction. The premium forged alloy steel undergoes a rigorously controlled heat treatment process to limit material hardness, neutralizing the threat of Sulfide Stress Cracking (SSC) and hydrogen embrittlement common in sour environments. Furthermore, the entire 5-foot joint is precision-machined from a single, solid billet. This seamless, weld-free design completely eliminates the risk of weld fatigue and heat-affected zone vulnerabilities, delivering ultimate reliability when handling hazardous H2S over a moderate span.

Configured with industry-standard Figure 1502 Male x Female (M x F) hammer union ends, this pup joint ensures rapid, tool-free rig-up using a standard lead hammer. The Female end houses a replaceable lip-type elastomeric seal molded from specialized, H2S-resistant compounds (such as Viton/FKM), which acts as a primary barrier to protect the secondary metal-to-metal seating surfaces from severe corrosive wash-out. Designed for maximum safety, this 5-foot sour service pup joint delivers unparalleled structural integrity for hazardous well servicing operations.

Features & Benefits

• 10,000 PSI Sour Service Rating (10M): Specifically engineered and derated to safely manage extreme high-pressure H2S fluid systems with a 10,000 PSI Cold Working Pressure rating.

• NACE MR0175 Compliant: Manufactured with specially heat-treated, controlled-hardness alloy steel to prevent Sulfide Stress Cracking (SSC) in sour gas environments.

• 100% Integral Construction: Machined from a single solid piece of forged steel, completely eliminating weld joints for maximum structural rigidity and fatigue resistance.

• Versatile 5-Foot Length: Provides an optimal mid-range reach required for spacing adjustments and securely connecting large-bore manifold components safely without an excessive footprint.

• H2S-Resistant Sealing: Utilizes precision-machined metal-to-metal seats combined with resilient lip-type seals formulated specifically for sour gas compatibility.

• Male x Female (M x F) Connections: Features standard Fig 1502 hammer union ends for fast, highly secure integration into existing sour service flowline networks.

Specifications & Technical Details

Applications

This specialized 3" Figure 1502 Integral Pup Joint (5 FT) is an absolutely critical asset for upstream operations where hydrogen sulfide (H2S) is present. Typical applications include precise spacing alignments on sour service choke-and-kill manifolds, reliable connections in H2S well testing packages, specialized heavy-duty flowback operations, and any critical fluid routing where a highly secure, NACE-compliant 10,000 PSI connection is mandated for personnel and environmental safety.

Quality Assurance

Each sour service integral pup joint undergoes the most rigorous quality control protocols in the industry. This includes severe hydrostatic pressure testing, complete dimensional verification, ultrasonic thickness (UT) testing, magnetic particle inspection (MPI), and strictly documented Hardness Testing to verify NACE MR0175 compliance. Full material traceability (MTRs) is provided to guarantee fail-safe structural integrity.

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