Description
Aprilaire XB-1019MC1B R134a Power Assembly Overview
The Aprilaire 5768 (Model XB-1019MC1B) is a precision-engineered thermostatic expansion valve (TXV) power assembly designed for reliable refrigerant metering in a wide range of refrigeration and HVAC applications. Engineered for use with R134a refrigerant, this power assembly delivers accurate superheat control and consistent system performance across demanding operating conditions.
Key Features
- Designed for use with R134a refrigerant
- 1/4″ SAE (Flare) equalizer-type connection for secure, leak-free installation
- 5-foot (5 FT) capillary tube length for flexible bulb placement and routing
- Application temperature range: -20°F to +50°F, suitable for low- and medium-temperature refrigeration systems
- Equalizer-type power element ensures accurate superheat sensing across varying load conditions
- Capscrews included for complete, ready-to-install assembly
- Direct OEM replacement for compatible Aprilaire and associated refrigeration systems
Specifications
- SKU: 5768
- Model: XB-1019MC1B
- Refrigerant: R134a
- Connection Type: 1/4″ SAE (Flare), Equalizer Type
- Capillary Tube Length: 5 FT
- Application Temperature Range: -20°F to +50°F
- Assembly Type: Power Assembly
- Hardware: Capscrews included
Application
This power assembly is ideal for technicians performing TXV service, repair, or replacement on refrigeration systems operating in low- to medium-temperature environments. The 5-foot capillary tube provides ample length for proper bulb positioning on the suction line, while the 1/4″ SAE flare equalizer connection ensures compatibility with standard refrigeration piping. Whether you’re servicing commercial refrigeration cases, walk-in coolers, or other R134a-based systems, the Aprilaire XB-1019MC1B delivers the precision and durability expected from a trusted OEM source.







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