| 摘要 |
The internally piloted dome loaded pressure reducing regulator includes a regulator body with a main valve portion and a pilot valve portion. The inlet is fluidly connected to the main valve bore which in turn is connected to the pilot valve bore. Each of the pilot and main valve members are spring urged to a closed position while the pilot valve is moved to an open position by a diaphragm when there is a decrease of pressure in the pilot chamber. A continuous fluid connection is provided from the pilot chamber, including through the main valve member, to a control chamber portion below a piston which is moved under pressure to open the main valve member. The piston has a bleed hole bottom chamber portion to the top control portion which in turn is fluidly connected to the outlet.
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