The disco guage is sealing at a diameter of say 0.375 and a pressure of 2,000psi acting on that
means there will be a force on teh gauge threads of 222 pounds.
Flow through the HiPac tip will occur each shot but due to the choked design the pressure at the seal will be less than the static pressure so reducing the force. The maximum force on the assembly occurs at 3,000psi when filled. After that pressure drops reducing force as well as when flowing force is reduced.