Overview
The Sporlan R3P 58R discharge bypass valve is a precision control valve used in commercial refrigeration and air-conditioning systems. Sporlan, a division of Parker Hannifin, designs discharge bypass valves to manage compressor capacity automatically during partial-load operation, eliminating the need for separate cylinder unloaders while reducing energy consumption and system wear.
Key Features
- Economical capacity control solution for refrigeration systems
- Automatic bypass of discharge gas to low-pressure side during reduced load
- Prevents coil icing and short-cycling in low-load conditions
- Modulating design for precise pressure and flow control
- Compact design for easy installation in discharge line branch connections
Technical Specifications
Verify the following specifications with your system integrator or Sporlan documentation before installation:
- Manufacturer: Sporlan (Parker Hannifin Division)
- Part Number: R3P 58R
- Product Type: Discharge Bypass Valve
- Application: HVAC/Refrigeration Systems
- Body Material: Brass or Ductile Iron (confirm with technical data)
- Maximum Operating Pressure: Per Sporlan technical bulletin (confirm rating)
- Condition: Used, Fully Functional
Typical Applications
The Sporlan R3P 58R is applicable on refrigeration and air-conditioning systems that experience periods of low load, including:
- Walk-in coolers and freezers with variable demand
- Commercial air-conditioning systems with part-load operation
- Multi-zone refrigeration systems requiring modulating capacity control
- Systems where traditional cylinder unloaders are not practical
- Industrial process cooling with fluctuating thermal load
Compatibility & Replacements
Compatible With
- Reciprocating and rotary screw compressors
- Direct-expansion (DX) refrigeration circuits
- R-22, R-404A, R-507, R-407C, and other common refrigerants (verify system refrigerant)
- Sporlan liquid injection and distributor systems
- Standard refrigeration piping (ODF, NPT, SAE connections)
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. Specific replacement models for the R3P 58R cannot be confirmed without access to the manufacturer’s technical cross-reference documentation.
Works With
- Pressure gauges and monitors
- Thermostat and control system piping
- Sporlan service bulletins and technical documentation
- Standard HVAC service tools and procedures
