Sporlan Controls 903805 Discharge Bypass Valve 7/8" ODF 55/70 PSIG

The Sporlan Controls 903805 (Model DRHE-6-55/70AR) is a discharge bypass regulating valve designed for HVAC and refrigeration systems. This valve features 7/8" ODF (copper solder) inlet and outlet connections with a brass body construction, providing reliable performance in commercial refrigeration applications.

Key Features:

• 7/8" ODF inlet and outlet connections for copper tubing installation
• Adjustable pressure range: 55-70 PSIG for precise system control
• Externally equalized with 1/4" ODF equalizer connection
• Remote bulb adjustment type for flexible sensing location
• 3/4" port size for system integration
• Body Style H configuration with Type 6 valve design
• 500 PSI design working pressure rating
• Factory tested for leak-free performance

This discharge bypass valve (DBV) limits minimum evaporating pressure during low-load conditions to prevent coil icing and protect the compressor from operating below its designed suction pressure. The valve monitors discharge line pressure and redirects excess refrigerant back to the compressor suction side when pressure exceeds the set threshold, maintaining optimal system operation and component protection.