Computer cooling system part BitsPower BP-BSWP-C40 — brass construction, black finish

BitsPower BP-BSWP-C40 — brass construction, black finish is a precision component for PC liquid-cooling systems. Machined from high-quality brass with a durable black sparkle coating, this part is designed for integration into custom water-cooling loops where corrosion resistance, consistent thread engagement and visual uniformity are required. The piece supports G1/4" external and internal threads with specified thread lengths and includes a hidden O-ring design to improve seal reliability while maintaining a clean appearance.

Advantages

The part features a true hi-flow design to minimise restriction in liquid paths and maintain coolant circulation efficiency. Brass material provides high mechanical strength and corrosion resistance, while the black nickel-like finish resists wear and matches common custom loop aesthetics. A hiding O-ring arrangement improves leak prevention without exposing sealing elements, and the extended G1/4" thread geometry is sized for straightforward installation into standard fittings, reservoirs or radiators used in PC cooling assemblies. The component is RoHS compliant.

Suitable for

• Custom PC water-cooling loops requiring brass fittings with a black finish
• Integration with G1/4" threaded ports on radiators, reservoirs and pump tops
• Systems where a low-restriction (hi-flow) path is important for thermal performance

Key specifications

• Material: high-quality brass
• Finish: black sparkle / black nickel appearance
• Thread standard: G1/4" external and internal compatibility
• Thread length: 5 mm (external) and 5.5 mm (internal)
• Design feature: hiding O-ring for improved sealing
• Flow characteristic: true hi-flow design minimizing hydraulic restriction
• Compliance: RoHS compliant

How to use

Install the part into the corresponding G1/4" threaded port on a fitting, radiator, reservoir or pump top. Ensure mating threads are clean and that the hidden O-ring is seated correctly before engagement. Hand-start the thread to avoid cross-threading, then tighten to a firm fit using appropriate tools — avoid excessive torque to prevent damage to the brass body or mating components. After installation, pressure-test the loop according to standard liquid-cooling procedures and check for leaks at operating temperature.

Recommendations

For best results, pair this brass component with compatible G1/4" fittings and use coolant fluids recommended for metal components. When assembling, verify O-ring condition and replace if aged. Periodically inspect connections for tightness and corrosion, especially after extended operation or system changes.