Brass Flare Stop Plug
Brass Flare Stop Plug – Reliable Forged Brass Plug for Leak-Proof Tube Sealing
The Brass Flare Stop Plug is a precision-engineered, forged brass fitting designed to securely seal flared tubing ends and prevent fluid or gas leakage in HVAC, refrigeration, fuel, and hydraulic systems. Crafted from premium forged brass, this plug provides excellent corrosion resistance and durable performance in demanding applications worldwide.
Key Features:
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Material: High-quality forged brass (CW617N/C37700) for superior strength and corrosion resistance
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Design: Flare stop plug with 45° flare angle for leak-proof metal-to-metal sealing
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Thread Types: SAE flare threads standard; also available with NPT, BSP, and Metric threads
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Pressure Rating: Suitable for pressures up to 800 PSI (depending on size and application)
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Temperature Range: -65°F to 250°F (-53°C to 121°C)
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Finish: Natural brass finish with optional nickel or chrome plating
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Easy Installation: Simple hand-tight or wrench-tight assembly for secure sealing
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Applications: Ideal for sealing unused tubing ends in HVAC, refrigeration, gas, and hydraulic lines
General Size Chart (Thread Size × Tube OD)
| Thread Size (inch) | Tube Size (inch) | Metric Tube OD (mm) |
|---|---|---|
| 1/4" | 1/4" | 6.35 |
| 3/8" | 3/8" | 9.52 |
| 1/2" | 1/2" | 12.7 |
| 5/8" | 5/8" | 15.88 |
| 3/4" | 3/4" | 19.05 |
Custom sizes and thread standards available on request.
OEM & Custom Services:
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Custom threading options including NPT, BSP, BSPT, Metric
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Laser marking and branding available for OEM clients
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Surface finishing options: natural brass, nickel-plated, chrome-plated
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Engineering support with CAD files, prototypes, and custom designs
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Low MOQ for prototypes and scalable production volumes
Quality & Certification:
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Manufactured under ISO 9001:2015 quality management system
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100% pressure tested for leak-proof performance
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RoHS and REACH compliant materials and manufacturing
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Full traceability with batch inspection and quality reports
Typical Applications:
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HVAC and refrigeration system line sealing
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Temporary or permanent sealing of gas and fuel lines
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Hydraulic and pneumatic tubing end caps
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Industrial fluid transport systems
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Automotive and marine fluid line sealing
