Parker Refrigerating Specialists A9S 5/8″ Pressure Valve Regulator
The Parker A9S Pressure Valve Regulator is a high-performance component designed to modulate refrigerant gas flow, ensuring consistent outlet pressure in commercial refrigeration systems. Its robust construction and advanced features make it an ideal choice for various applications requiring precise pressure control.
Key Features
- Electric Shut-Off Capability: Equipped with an integral electric shut-off feature, the A9S allows for efficient pump-down control, enhancing system safety and performance.
- Pilot-Operated Design: This design ensures close regulation of outlet pressure, maintaining system stability under varying load conditions.
- Externally Equalized: The external equalizer connection allows for accurate pressure control at the sensing point, accommodating diverse system configurations.
- Sweat-End Design: Facilitates easy installation by allowing the regulator to be soldered into the line without disassembly, while still permitting in-line cleaning and maintenance.
- Wide Pressure Range: Operates effectively within a pressure range of 10″ Hg to 120 psig, suitable for a broad spectrum of refrigeration applications.
- Temperature Resilience: Functions reliably across a temperature range of -50°F to 200°F (-45°C to 93°C), ensuring durability in various operating environments.
Technical Specifications
- Connection Size: 5/8″ ODF (Sweat)
- Port Size: 5/8″
- Pressure Range: 10″ Hg to 120 psig
- Maximum Rated Pressure: 400 psig (27.5 bar)
- Temperature Range: -50°F to 200°F (-45°C to 93°C)
- Weight: Approximately 4 lbs
Applications
The A9S Pressure Valve Regulator is versatile and can be utilized in various applications, including:
- Hot gas bypass for compressor capacity control
- Air-cooled condenser head pressure control
- Hot gas defrost systems
- Liquid pressure regulation
- Booster suction pressure control to prevent deep vacuum conditions
Its adaptability and precise control make it a valuable component in maintaining optimal performance and efficiency in commercial refrigeration systems.
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