In a throttled refrigeration system, which component is typically located immediately before the throttling device?

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The liquid refrigerant stockpiled and separated from vapor sits in the receiver, which sits right ahead of the throttling device. The receiver ensures a steady supply of liquid to the expansion device and helps keep vapor from reaching it. Since the throttling device relies on delivering liquid refrigerant, having the receiver in that position keeps the flow consistent and primarily liquid, which is essential for proper expansion and heat absorption in the evaporator. The condenser comes earlier in the cycle, condensing gas to high-pressure liquid, and the evaporator is downstream after the expansion device, where the liquid absorbs heat and boils off. The accumulator is placed on the low-pressure, suction side to prevent liquid from returning to the compressor, not before the throttling device.