HH Series High Pressure Needle 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. Other high pressure connections are available upon request. For corrosive or other volatile applications, the HH Series can be specified in a variety of materials including Titanium, Hastelloy and Inconel.
- 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.