Shut-off Valve 1 (25MM) 3-Way Dual 1FPT Connections - Hansen

The Hansen H8024 is a 1" (25 mm) 3-way dual shut-off valve with 1" FPT (female pipe thread) connections, designed for use in ammonia (NH₃) refrigeration systems, especially for parallel pressure relief valve installations.

🔧 Technical Specifications

• Model: H8024
• Connection Size: 1" FPT (inlet and outlet)
• Valve Type: 3-way dual shut-off
• Material: Forged steel body
• Weight: ~11 lbs
• Dimensions: 11" W x 6" H x 15" L
• Working Pressure: Up to 600 PSIG

🌟 Key Features

• Purpose: Enables parallel installation of two pressure relief valves, ensuring one valve is always active while the other can be serviced or replaced.
• Safety Compliance: Meets ANSI/ASHRAE 15-2007 requirements for pressure vessels with 10+ cubic feet of internal volume.
• Design:
  • Prevents both relief valves from being isolated at the same time.
  • Metal-to-metal seating for durability.
  • O-ring stem seal for leak resistance.
• Operation:
  • Can be frontseated or backseated.
  • Backseated position is recommended for normal operation to relieve packing pressure.