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HH Series High Pressure Needle Valve

Brand: Hex Valve

The HH Series is a heavy duty, high pressure needle valve that features an industrial strength stem and bonnet and enhanced packing arrangement all designed to handle the tough conditions of high pressure service. 

With a multitude of configurations available, you will find a model to meet your varying needs. 

The HH Series is produced in 1/8", 1/4", 3/8", 1/2" NPT ends and 1/4", 3/8" and 9/16" cone and threaded ends. 

For corrosive or other volatile applications, the HH Series can be specified in a variety of materials including Titanium, Hastelloy® and Inconel®.
Features
  • Packing Materials: TFE or high pressure graphite
  • Backseated bonnets with packing below the stem threads: To eliminate potential thread contamination by the process media, the packing is located below the stem threads
  • Non-Rotating Tip (NRT) stem: Provides tight, repeatable shutoff without galling or cross-scoring that occurs on ball type stems

Specifications

Brand

Cone & Thread Inlet

  • 1/4” Female High Pressure Cone & Thread
  • 1/4” Female Medium Pressure Cone & Thread
  • 3/8” Female High Pressure Cone & Thread
  • 3/8” Female Medium Pressure Cone & Thread
  • 9/16” Female High Pressure Cone & Thread
  • 9/16” Female Medium Pressure Cone & Thread

Cone & Thread Outlet

  • 1/4” Female High Pressure Cone & Thread
  • 1/4” Female Medium Pressure Cone & Thread
  • 3/8” Female High Pressure Cone & Thread
  • 3/8” Female Medium Pressure Cone & Thread
  • 9/16” Female High Pressure Cone & Thread
  • 9/16” Female Medium Pressure Cone & Thread

Enclosure, Body Material

  • 316 Stainless Steel NACE
  • 316H Stainless Steel, Max.
  • 316L Stainless Steel NACE
  • Hastelloy C, Max.
  • Incoloy 800, 825, Max.
  • Inconel 600 (Max.)
  • Inconel 625 (Max.)
  • Stainless Steel (SA-479, 316)
  • Titanium Grade 2, Max.

NACE & NIST

  • NACE

NPT Inlet

  • 1/2” NPT Female
  • 1/4” NPT Female
  • 1/8” NPT Female
  • 3/8” NPT Female

NPT Outlet

  • 1/2” NPT Female
  • 1/4” NPT Female
  • 1/8” NPT Female
  • 3/8” NPT Female

Operating Pressure

  • psi: 0 to 15,000 (kPa: 0 to 103,421, bar: 0 to 1,034)

Packing Material

  • Graphite
  • TFE

Stem Material

  • 17-4 PH Stainless Steel
  • 316 Stainless Steel
  • 316H Stainless Steel
  • 316L Stainless Steel
  • Hastelloy C
  • Incoloy 825
  • Inconel 600

Welded Inlet

  • 1/2” Socket Weld End Female
  • 1/4” Socket Weld End Female
  • 3/8” Socket Weld End Female

Welded Outlet

  • 1/2” Socket Weld End Female
  • 1/4” Socket Weld End Female
  • 3/8” Socket Weld End Female

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