Description
The Copeland 057370 (Model XB-1019MW551B) is a precision-engineered Power Assembly designed for use in refrigeration systems operating on R134a refrigerant. Built to exacting Copeland standards, this replacement power element delivers reliable thermostatic control across a broad application temperature range, making it a dependable choice for commercial and industrial refrigeration service work.
Key Features
- Designed for R134a refrigerant systems
- 1/4″ SAE (Flare) equalizer-type connection for secure, leak-free installation
- 5-foot capillary tube length for flexible positioning of the sensing bulb
- Wide application temperature range: -50°F to +50°F
- 55 PSI Maximum Operating Pressure (MOP) for system protection
- Capscrews included for complete, ready-to-install assembly
- Genuine Copeland replacement part — engineered for precise fit and performance
Specifications
- SKU: 057370
- Model: XB-1019MW551B
- Refrigerant Type: R134a
- Connection Type: 1/4″ SAE Flare, Equalizer Type
- Capillary Tube Length: 5 ft
- Application Temperature Range: -50°F to +50°F
- MOP Rating: 55 PSI
- Includes: Capscrews
Application
This power assembly is the sensing and actuating element of a thermostatic expansion valve (TXV), responsible for regulating refrigerant flow into the evaporator based on superheat. The equalizer-type design allows the valve to compensate for pressure drop across the evaporator, ensuring accurate superheat control even in longer coil applications. The 55 PSI MOP limits refrigerant flow during high-load startup conditions, protecting the compressor from liquid slugging. Ideal for medium- and low-temperature refrigeration applications within the -50°F to +50°F range.
Reviews
There are no reviews yet.