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First Company CP81-51 0.051" Orifice Piston

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Special Price $27.16 Regular Price $35.31
In stock
SKU
CP81-51
The First Company CP81-51 Orifice Piston is a refrigerant metering part that is used to control the refrigerant flow in cooling units. The refrigerant is forced through a 0.051-inch calibrated orifice opening, which forms a controlled restriction to the flow of refrigerant into the evaporator coil utilized in the HVAC systems. The piston-style insert is installed in the distributor or metering body of the refrigerant circuit to create a fixed passage that regulates the flow of refrigerant in the system. It is located in the liquid line or evaporator inlet assembly, and it regulates the refrigerant flow when cooling is in progress.
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Manufacturer:
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Specifications

  • Type: Orifice Piston
  • Size: 0.051"
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Product Questions (2)
Customer Questions
What maintenance is required for the First Company CP81-51 Orifice Piston?

Regularly inspect the orifice for blockages, corrosion, or debris buildup. Clean carefully with compressed air or a soft brush if needed. Ensure proper seating in the system to maintain consistent refrigerant flow. Handle gently to avoid deformation.

What are common issues with the First Company CP81-51 Orifice Piston?

  • Restricted or uneven refrigerant flow.
  • Clogging from debris or contaminants.
  • Improper seating causing pressure fluctuations.
  • Wear or damage affecting system performance.

Installation Steps

Step 1: Turn off all power and recover refrigerant from the system before beginning.

Step 2: Locate and remove the existing orifice piston from the liquid line.

Step 3: Insert the new orifice piston securely into the correct line position.

Step 4: Ensure proper alignment and seating to prevent leaks.

Step 5: Reassemble any line fittings or components removed during installation.

Step 6: Evacuate the system, recharge refrigerant, restore power, and test system operation.