Sporlan Controls 904077 1-1/8″ Discharge Bypass Valve Body, 0–75 PSI Range

Description

Sporlan Controls 904077 Discharge Bypass Valve Body

The Sporlan Controls 904077 is a 1-1/8″ discharge bypass valve body designed for use in commercial refrigeration and HVAC systems. Discharge bypass valves play a critical role in compressor capacity control, preventing short-cycling and protecting compressor integrity during low-load operating conditions. This valve body routes excess discharge gas back into the low-pressure side of the system, maintaining stable suction pressure and consistent system performance across varying load demands.

Key Features

• 1-1/8″ connection size for compatibility with medium-to-large commercial refrigeration and HVAC systems
• Operating pressure range: 0–75 PSIG, suitable for a wide variety of low- and medium-temperature refrigeration applications
• Discharge bypass design prevents compressor short-cycling under reduced load conditions
• Durable valve body construction engineered to Sporlan’s exacting quality standards
• Compatible with Sporlan’s full line of discharge bypass valve components and accessories
• Designed for field installation and service flexibility

Application

This discharge bypass valve body is ideal for use in supermarket refrigeration systems, walk-in coolers and freezers, commercial air conditioning systems, and other applications where compressor capacity modulation is required. By bypassing hot discharge gas to the evaporator inlet or suction line, the valve maintains minimum system load and protects the compressor from damage caused by operating at extremely low suction pressures.

About Sporlan Controls

Sporlan Controls, a division of Parker Hannifin, is a globally recognized leader in refrigeration and HVAC controls. Sporlan products are trusted by contractors and engineers worldwide for their reliability, precision engineering, and broad application compatibility.