HA4A/01 - Hansen - 3/4 (20MM) Pressure Regulator Range A

The Hansen HA4A/01 is a 3/4" (20 mm) modular pressure regulator designed for ammonia (NH₃) and other industrial refrigerants. It belongs to the HA4A series, known for its rugged construction, modular design, and high reliability in demanding refrigeration environments.

🔧 Technical Specifications

• Model: HA4A/01
• Port Size: 3/4" (20 mm)
• Connection Type: Threaded (FPT)
• Pressure Range: Range A (typically low-pressure applications)
• Safe Working Pressure: 400 PSIG (27 bar)
• Body Material: Ductile iron
• Temperature Range: –60°F to +240°F (–50°C to +115°C)
• Refrigerants: NH₃, R22, R134a, CO₂, and other Hansen-approved refrigerants

🌟 Key Features

• Modular Design:
  • Interchangeable control modules (pilots) for various functions.
  • Easy maintenance and upgrades.
• High Dirt Tolerance:
  • Teflon® dirt-wiping piston seals.
  • Operates reliably in dry or oil-free systems.
• Manual Opening Stem:
  • Located on top to avoid contamination from rust or debris.
• Sealing:
  • Teflon seating and stainless steel spring closing.
  • Non-asbestos gaskets.
• Certifications:
  • CSA Certified
  • CRN for Canada