
The NASH AT Two-Stage Liquid Ring Vacuum Pump is a medium- to large-capacity solution designed for applications requiring deeper vacuum levels and stable performance across demanding process conditions.
Its two-stage configuration enhances efficiency and allows for improved vacuum capability compared to single-stage designs. Built with a robust, horizontally split casing, the pump supports easier maintenance access and long-term operational reliability.

The liquid ring design enables it to handle saturated gases, vapors, and entrained liquids without internal damage, making it well suited for harsh or variable environments. Engineered for continuous-duty operation, the AT series is a strong fit for processes where consistent vacuum levels and durability are critical to production performance.
Key Characteristics
- Suction Capacity: Broad range supporting medium to high-volume applications
- Vacuum Range: Capable of achieving deeper vacuum levels than single-stage pumps
- Design: Two-stage liquid ring construction for improved efficiency and performance
- Construction: Heavy-duty casing with service-friendly internal access
- Operation: Continuous-duty capable with stable vacuum output
- Process Handling: Tolerant of wet, saturated, and contaminated gas streams
Ideal Applications
The AT two-stage design is particularly effective in processes requiring deeper vacuum levels, consistent performance, and the ability to operate reliably in moisture-laden or variable process environments.
- Vacuum distillation and evaporation
- Power plant condenser evacuation
- Chemical and petrochemical processing
- Pulp and paper production
- Plastics and extrusion processes
- Drying and degassing operations
Industries Served
- Chemical Processing
- Power Generation
- Pulp and Paper
- Plastics & Polymers
- Oil and Gas
- General Manufacturing












