Description
The Trane VAL8974 is an OEM thermostatic expansion valve (TXV) engineered specifically for 4-ton R-410A residential and light commercial HVAC systems. Designed to deliver precise refrigerant metering, this valve maintains optimal superheat levels across varying load conditions — protecting the compressor and maximizing system efficiency.
Product Overview
As a genuine Trane replacement part, the VAL8974 is built to exact factory specifications, ensuring a reliable drop-in fit for compatible Trane equipment. The TXV continuously modulates refrigerant flow in response to evaporator load, preventing both liquid slugging and excessive superheat that can degrade system performance and equipment life.
Key Specifications
- Brand: Trane (OEM)
- Part Number: VAL8974
- Refrigerant: R-410A
- System Capacity: 4 Ton
- Inlet Connection: 3/8″ ODF
- Outlet Connection: 1/2″ ODF
- Valve Type: Thermostatic Expansion Valve (TXV / TEV)
Features & Benefits
- Genuine Trane OEM part for assured compatibility and reliability
- Optimized for R-410A refrigerant — no retrofitting required
- Precise superheat control protects the compressor from liquid slugging
- 3/8″ x 1/2″ ODF connections for straightforward installation
- Rated for 4-ton system capacity, matching common residential and light commercial applications
- Helps maintain peak system efficiency and energy performance
- Durable construction for long service life in demanding HVAC environments
Application
The VAL8974 is intended for use in Trane split-system air conditioners and heat pumps utilizing R-410A refrigerant at 4-ton capacity. Always verify compatibility with the specific equipment model before installation. Refer to the Trane service manual and follow all applicable codes and refrigerant handling regulations during installation.
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