Using the design for Maximator’s 60k psi fitting, the needle valve would be able to offer smooth valve handle turning, field serviceability, and panel mount capability. It has been deemed that a single piece of non-rotating stem design would be able to prevent the damage of the seat surface. It would be providing the regulating stem and rotating stem options.
It would also be pertinent to mention here that the adjustable packing under the stem threads would isolate the stem threads from the fluids, whereby increasing the service life of the valve. They have been providing to your specific needs and requirements in the best manner possible.