![Trane VAL9478 TXV Expansion Valve, 4 Ton R410A — New England Supply House spec card [NESH-SPEC-CARD-V2]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-val9478-card.png?v=1794002819&width=1946)
![Trane VAL9478 TXV Expansion Valve, 4 Ton R410A specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-val9478-specs.png?v=1794002820&width=1946)
Trane VAL9478 TXV Expansion Valve, 4 Ton R410A
Trane VAL9478 TXV Expansion Valve, 4 Ton R410A
Regular price
$278.99 USD
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Sale price
$278.99 USD
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Low stock: 5 left
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SKU:VAL9478
View full details![Trane VAL9478 TXV Expansion Valve, 4 Ton R410A — New England Supply House spec card [NESH-SPEC-CARD-V2]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-val9478-card.png?v=1794002819&width=1445)
![Trane VAL9478 TXV Expansion Valve, 4 Ton R410A specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-val9478-specs.png?v=1794002820&width=1445)
The Trane VAL9478 is a thermostatic expansion valve (TXV) that regulates refrigerant flow into the evaporator coil, maintaining proper superheat for efficient cooling. It is sized for 4 ton systems using R410A refrigerant, with 3/8 in. x 1/2 in. connections and a 5 ft. capillary tube.
This is a genuine Trane replacement part. Confirm this part number against your equipment's parts list before ordering.
Specifications
| Part Number | VAL9478 |
|---|---|
| Brand | Trane |
| Type | TXV Expansion Valve |
| Refrigerant | R410A |
| Capacity | 4 Ton |
| Connection Size | 3/8 in. x 1/2 in. |
| Capillary Tube Length | 5 ft. |