HA2A-11 - Hansen - Small Back Pressure Regulator High Capacity, Range A

The Hansen HA2A-11 is a small back pressure regulator designed for high-capacity applications in industrial refrigeration systems. It is part of Hansen’s HA2A series and is built for use with a variety of refrigerants, including ammonia (NH₃), R22, R134a, and CO₂.

🔧 Technical Specifications

• Model: HA2A-11
• Type: Small Back Pressure Regulator, High Capacity
• Range: A
• Body Material: Ductile Iron
• Connection Types:
  • 3/4" FPT (Female Pipe Thread)
  • Socket weld
  • Weld neck
  • ODS (for copper tubing)
• Safe Working Pressure:
  • 400 PSIG (27 bar)
  • 600 PSIG (40 bar) for CO₂
• Operating Temperature: –60°F to +240°F (–50°C to +115°C)
• Weight: ~6 lbs
• Dimensions: 9" W x 5" H x 10" L
• Inlet Pressure Gauge Port: Included

🌟 Key Features

• Compact and Rugged: Ideal for small capacity systems or as a pilot valve for larger main valves.
• Versatile Applications:
  • Suitable for both liquid and vapor refrigerants.
  • Can be used as a non-atmospheric relief to the low side (e.g., HA2BK setups).
• Maintenance-Friendly: Minimal service required; available with close-coupled strainers.
• Compatibility: Drop-in replacement for Parker R/S A2A and A2B series regulators.