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Trane VAL19487 Thermal Expansion Valve 3/8X1/2" 40" Capillary ODF R410A

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3  Reviews Add Your Review
Special Price $250.49 Regular Price $278.05
In stock
SKU
VAL19487
The Trane VAL19487 is a thermal expansion valve for use in HVAC systems working with R-410A refrigerant. This valve will put in the better cooling performance for the outlet temperature of the refrigerant that exits the evaporator. The TXV operates based on the temperature of the refrigerant leaving the evaporator. The valve opens more as the temperature rises allowing more refrigerant to flow, absorbing more of the surrounding air's heat. However, the valve restricts flow so the evaporator doesn’t overcook and freeze when the temperature drops. This Trane TXV has a 40" capillary tube, a 1/2" output, and a 3/8" inlet. It depends on any length capillary tube and it can detect temperature changes in the evaporator.
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HVAC Controls & Electrical, Valves
Manufacturer:
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Specifications

  • Length: 7.5"
  • Weight: 0.85lbs
  • Connection Type: ODF
  • Flow Control: 2.8% Bleed
  • Inlet Size 3/8"
  • Capillary Tube Size: 40"
  • Outlet Size: 1/2"
  • Type: Thermal Expansion Valve
  • Refrigerant: R-410A
Manufacturer Name: Trane
Product Number: VAL19487
OEM Part Number: VAL19487
Product Description: 3/8"X1/2"Odf R410a Txv 40"Cap
Weight:0.85lbs/385.55g

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Product Questions (2)
Customer Questions
What maintenance is required for the Trane VAL19487 Thermal Expansion Valve?

Inspect the valve regularly for leaks, corrosion, or blockages. Ensure connections are tight and the capillary tube is properly positioned. Proper maintenance maintains efficient refrigerant flow and system performance. Always depressurize the system before handling the valve.

What are common issues with the Trane VAL19487 Thermal Expansion Valve?

  • Refrigerant leaks at connections.
  • Improper or fluctuating flow rates.
  • Clogged or restricted valve or capillary tube.
  • Incorrect superheat causing system inefficiency.

Installation Steps

Step 1: Turn off the HVAC system power and recover refrigerant safely.

Step 2: Remove the existing expansion valve, keeping fittings and hardware organized.

Step 3: Install the new valve, aligning inlet and outlet connections and securing with proper fittings.

Step 4: Connect the capillary tube carefully, avoiding kinks or bends.

Step 5: Evacuate and recharge the system with refrigerant.

Step 6: Restore power and verify proper cooling performance and leak-free operation.