Hex Valve HN49 Needle Valve with Integral Metal Seat

The Hex Valve HN49 is a heavy duty needle valve designed to handle the tough conditions of high pressure and high temperature services. It is available with male or female threaded connections, socket weld ends, or tube end connections. For corrosive or other volatile applications, the HN49 can be made in Monel, Alloy 20, Titanium, or Hastelloy. The HN49 is available in 1/4" to 1" sizes.

Key Specifications

  • Back-steated bonnets with packing below the stem threads eliminates possibility of thread contamination by process media
  • Metal-to-metal backseat minimizes fugitive emissions, prevents accidental removal and stem blow-out during operation
  • Available in carbon steel and stainless steel with Teflon or Grafoil packing
  • 10,000 PSIG bonnet assembly model available for high pressure applications

Supporting Documentation
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