Purpose:
These pumps are designed to create a vacuum in closed systems, often for tasks like evacuating refrigerant lines in air conditioning or refrigeration units.
Features:
They typically feature an integrated body structure, forced oil lubrication, and an oil window for monitoring oil levels. Some models include features like gas ballast valves to manage condensable vapors and anti-sucking back valves to prevent oil contamination.
Models:
Value offers various models, including single-stage (e.g., VE 160N, FY-1C-N) and double-stage (e.g., VE-245N) pumps, differing in their ultimate vacuum levels and flow rates.
Availability:
These pumps are available from various suppliers specializing in HVAC tools and equipment.