Brass Flare Stop Plug
Brass Flare Stop Plug
038-DFSP
The precision-engineered Brass Flare Stop Plug is intended to firmly seal the termination of flare tubing systems and stop fluid or gas leaks. This plug, which is made of high-quality forged brass, has a long service life, great resistance to corrosion, and resilience even under harsh working circumstances.
Without the need for extra sealing chemicals, the flare design guarantees a tight metal-to-metal seal, offering dependable leak-proof performance. Its sturdy and compact design makes installation simple while preserving system integrity in the face of temperature and pressure changes.
When reliable sealing of unused or temporary flare connections is needed, brass flare stop plugs are frequently utilized in HVAC systems, refrigeration units, gas distribution systems, hydraulic equipment, and industrial piping applications.
Key Features
Material: High-quality forged brass (CW617N/C37700) for superior strength and corrosion resistance
Design: Flare stop plug with 45° flare angle for leak-proof metal-to-metal sealing
Thread Types: SAE flare threads standard; also available with NPT, BSP, and Metric threads
Pressure Rating: Suitable for pressures up to 800 PSI (depending on size and application)
Temperature Range: -65°F to 250°F (-53°C to 121°C)
Finish: Natural brass finish with optional nickel or chrome plating
Easy Installation: Simple hand-tight or wrench-tight assembly for secure sealing
Applications: Ideal for sealing unused tubing ends in HVAC, refrigeration, gas, and hydraulic lines
OEM & Customization Capabilities
Custom threading options including NPT, BSP, BSPT, Metric
Laser marking and branding available for OEM clients
Surface finishing options: natural brass, nickel-plated, chrome-plated
Engineering support with CAD files, prototypes, and custom designs
Low MOQ for prototypes and scalable production volumes
Applications
HVAC and refrigeration system line sealing
Temporary or permanent sealing of gas and fuel lines
Hydraulic and pneumatic tubing end caps
Industrial fluid transport systems
Automotive and marine fluid line sealing
Quality & Certification
Manufactured under ISO 9001:2015 quality management system
100% pressure tested for leak-proof performance
RoHS and REACH compliant materials and manufacturing
Full traceability with batch inspection and quality reports
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 |