SRS International

Powerful and Versatile Vacuum Pumps

The NL Series Conical Lobe Liquid Ring Vacuum Pump offers an excellent drop-in replacement for the Nash CL Series 1, 2, and 3 models. Designed for high-performance, these pumps cover a broad capacity range from 300 CFM to 15,000 CFM. The NL Series is ideal for applications requiring rough vacuum levels from 5โ€ to 28โ€ Hg vac. Whether you need a high-capacity pump or one for smaller applications, the NL Series delivers unmatched flexibility.


Durable Construction for Tough Environments

The NL Series comes with standard cast iron and Teflon packing construction. If your application demands more, we offer upgrades to bronze, stainless steel 316, or stainless steel 304 for better resistance to corrosion. Additionally, the pump features mechanical seals with Viton elastomers for optimal sealing and durability. We also provide spare parts and repair kits to keep your pump in top condition. Plus, enjoy peace of mind with a 2-year warranty against manufacturer defects.


Versatile Applications Across Industries

The NL Series is trusted across diverse industries, including:

  • Food Processing
  • Chemical Manufacturing
  • Pharmaceutical Production
  • Textile Industry
  • Paper and Pulp Industry
  • Beverage Industry

It efficiently handles challenging tasks like autoclaves, evisceration, evaporating, cooking, dewatering, slot extraction, labeling, and forming. The NL Series stands strong in both simple and complex processes, proving its value across the board.


Key Features of the NL Series

Robust and Long-Lasting Construction

The NL Series features thick cast iron chambers that provide durability in the harshest environments. Whether exposed to wet conditions or dirty environments, these pumps are built to last.

Dual Functionality

Models 01 in the NL Series handle both vacuum pumping (up to 28โ€ Hg vac.) and compression (up to 14.7 psia). This dual capability makes them ideal for a wide range of applications. Models 02 and 03 are optimized for vacuum pumping, allowing you to select the perfect model for your system.

Resistance to Flooding

Thanks to the dual conical lobe configuration, the NL Series can handle significant liquid carryover without compromising performance. The anti-flooding features further ensure that the pump operates smoothly, extending its service life.


Proven Reliability in Demanding Applications

The NL Series has been relied upon for decades, offering outstanding performance in a variety of industries. Its durability and versatility make it a preferred choice for pharmaceutical, chemical, food processing, and textile applications.


Contact Us Today for a Quote

Are you ready to optimize your vacuum system with the NL Series Conical Lobe Vacuum Pump? Contact us today for more details, and our team will help you select the perfect model for your needs.