Description
Sporlan Controls 902948 – 7/8″ ODF Head Pressure Control
The Sporlan Controls 902948 is a 7/8″ ODF Head Pressure Control engineered to maintain minimum condensing pressure in refrigeration and air conditioning systems operating under low-ambient temperature conditions. By regulating head pressure, this control protects the compressor from slugging, ensures adequate liquid refrigerant supply to the expansion device, and preserves overall system efficiency year-round.
Why Head Pressure Control Matters
During cold weather or low-load conditions, condensing pressure can drop below the threshold needed for proper refrigerant flow. Without a head pressure control, systems may experience poor expansion valve operation, compressor damage, and inconsistent cooling performance. The Sporlan 902948 addresses these challenges by modulating refrigerant flow to maintain the correct operating pressure range.
Key Features
- 7/8″ ODF connection for straightforward integration into standard refrigeration line sets
- Designed to maintain minimum condensing (head) pressure during low-ambient operation
- Protects compressors from liquid slugging and refrigerant migration
- Ensures consistent expansion valve performance across varying ambient conditions
- Built to Sporlan’s industry-leading quality standards for commercial refrigeration applications
- Compatible with a wide range of refrigerants used in commercial refrigeration and HVAC systems
Typical Applications
- Commercial refrigeration systems (walk-in coolers, reach-in cases)
- Air-cooled condensing units operating in variable or low-ambient environments
- Supermarket refrigeration racks
- Light commercial air conditioning systems
About Sporlan Controls
Sporlan, a Parker Hannifin brand, has been a trusted name in refrigeration controls and components for decades. Their head pressure controls are widely specified by refrigeration engineers and service technicians for dependable, long-lasting performance in demanding commercial environments.







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