The 15112B220 is a model from the Apollo Conbraco Series 15—a compact, high-performance air relief valve designed for overpressure protection in compressed air and gas systems.

 Key Specifications

• Type: Air Relief Valve
• Series: Apollo 15 Series
• Model: 15112B220
• Connection: 1/4" NPT (Male)
• Set Pressure: 220 PSI
• Body Material: Brass (ASTM B16)
• Seat Material: Viton (FKM)
• Temperature Rating: Up to 325°F (163°C)
• Media Compatibility: Air and inert gases
• Dimensions: Approx. 2.62" H × 0.78" W
• Certifications: ASME Section VIII, National Board certified

 Features & Benefits

• Top-guided design for consistent performance
• Stainless steel spring with fluorocarbon soft seat
• Compact and rugged for OEM and aftermarket use
• Ideal for compressors, dryers, receivers, and control air lines
• Optional compliance with European Pressure Equipment Directive