Blaze Sales & Service
3" 15,000 PSI Fig 1502 Male Blind Sub with Wing Nut – Oil & Gas Flowline Fitting
3" 15,000 PSI Fig 1502 Male Blind Sub with Wing Nut – Oil & Gas Flowline Fitting
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The 3" Figure 1502 Male Blind Sub with Wing Nut is a robust, high-pressure closure assembly engineered to securely cap off and isolate the female threaded hub of a hammer union connection. Designed for the extreme conditions of the oilfield, this integrated blind fitting is rated for a Cold Working Pressure (CWP) of 15,000 PSI. It is an essential component for dead-ending flowlines, capping well-testing manifolds, and securing hydraulic fracturing equipment where absolute fluid containment is mandatory.
Manufactured from premium high-strength forged alloy steel, this complete assembly includes the precision-machined male blind sub (featuring the elastomeric seal groove) and the heavy-duty Figure 1502 wing nut. Because it comes pre-assembled with the wing nut, rig crews can immediately deploy the blind to mate with any standard 3" 1502 female sub, utilizing a sledgehammer for rapid, secure make-up.
Built to withstand abrasive frac fluids, severe mechanical shock, and intense vibration, the 3" 1502 Male Blind Sub with Wing Nut ensures maximum safety, blowout-proof performance, and structural integrity in the most demanding upstream applications.
Features & Benefits
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Complete Assembly: Comes fully equipped with the male blind sub and heavy-duty wing nut for immediate field deployment.
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15,000 PSI CWP Rating: Specifically engineered to safely contain extreme pressures in critical well-control and stimulation environments.
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Forged Alloy Steel Construction: Delivers superior structural strength, resisting fatigue, mechanical impact, and internal erosion.
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Positive Isolation: Provides a secure, blowout-proof dead-end for high-pressure fluid and gas lines.
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Standard Interchangeability: Fully compatible with all industry-standard 3" Figure 1502 female threaded hubs.
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Rapid Field Deployment: Allows for fast make-up and break-out, minimizing downtime during fast-paced rig-up and manifold adjustments.
Specifications & Technical Details
| Category | Specification |
| Component Type | Blind Sub Assembly / Flowline Closure Fitting |
| Figure Number | Figure 1502 |
| Size | 3" |
| Pressure Rating | 15,000 PSI CWP (15M) |
| End Connection | 3" Fig 1502 Male (with Wing Nut) |
| Material | High-Strength Forged Alloy Steel |
| Service Type | Standard Oilfield Service |
| Typical Applications | Frac manifolds, well testing, pump discharge lines, flowline dead-ends |
| Testing & Compliance | Strict dimensional verification and material traceability |
Applications
This 3" Figure 1502 male blind sub with wing nut is essential for operations requiring rapid and secure high-pressure flowline termination. Typical uses include capping off unused female branches on frac manifolds, dead-ending well-testing lines, securing high-pressure pump discharge headers, and terminating temporary circulating iron systems.
Quality Assurance
Each blind assembly is manufactured under rigorous quality control protocols. The fitting undergoes precise dimensional inspection and non-destructive examination (NDE) to guarantee absolute structural integrity, proper wing nut retention, and reliable blowout-proof performance under maximum 15,000 PSI operational loads.
Request a Quote
📞 +1 405 666 5011
📧 seo@blazess.com
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