DOT Brass Female Adapter

DOT-certified brass female adapter for air brake systems. Securely connects nylon tubing to threaded valves/cylinders. Leak-proof design meets FMVSS 121 standards.

DOT Air Brake Fitting

Material: Corrosion-resistant brass

Pressure Rating: 150 PSI (FMVSS 121 compliant)

Thread Standards: NPT / BSPP / Metric

Tubing Sizes: 1/4″ | 3/8″ | 1/2″

Installation: Hand-tighten + torque to 12-15 Nm

DOT Air Brake Female Brass Adapter

Seamless Threaded-to-Tubing Conversion for Air Brake Systems

• Simplified Integration
  Directly connects nylon tubing to threaded ports (NPT/BSPP/metric) on brake valves, air tanks & cylinders
  Eliminates extra adapters – reduces leak points by 30%
• Rapid Maintenance
  Quick-disconnect ferrule design (tool-activated) enables line replacement without fitting disassembly
  Field-repairable connections minimize vehicle downtime
• Global Compatibility
  Works with all standard nylon tubing (1/4″, 3/8″, 1/2″)
  Supports NPT, BSPP, and metric threads for worldwide applications

Critical Functions

• Interface Conversion
  Bridges flexible nylon tubing to rigid metal equipment (valves/cylinders/reservoirs)
  Solves material mismatch & international threading standards (e.g., NPT to metric)
• High-Pressure Sealing
  Dual-ferrule crimp + O-ring ensures leakproof seal at 150 PSI
  Brass construction prevents corrosion-induced failure
• Vibration Resistance
  Mechanical ferrule locking withstands extreme road/engine vibrations
  Prevents joint loosening in commercial vehicles
• Maintenance Optimization
  Modular design enables section-by-section repairs
  Re-crimpable ferrules allow non-destructive disassembly

DOT Brake Fittings Application

DOT Air Brake Fittings Specification

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