Nash* Vacuum Pump Specialists with Proven Industry Experience
Airvac Technical Services is a trusted US-based specialist with over 23 years of experience supporting industrial and medical vacuum systems. We focus exclusively on Nash vacuum pumps and related technologies, helping facilities maintain uptime, control lifecycle costs, and extend the life of critical equipment.
We supply and support a full range of liquid ring vacuum solutions, including rebuilt pumps, replacement systems, compressors, and spare parts. Our customers rely on us for practical engineering support, fast turnaround, and proven performance in demanding environments.
What Are Nash* Vacuum Pumps?
Nash vacuum pumps are widely recognized as the global standard for liquid ring vacuum technology. They are designed to operate continuously in harsh industrial conditions while delivering stable vacuum performance and long service life.
These systems are commonly used where moisture, vapor, or contaminated gases are present. Typical applications include chemical processing, paper manufacturing, food production, power generation, and medical vacuum systems. Their simple mechanical design and robust construction make them well-suited for critical processes that require dependable operation.
An infographic explaining how liquid ring technology works can be placed here to visually support technical understanding.
Types of Nash* Vacuum Pumps and Compressors
Why Industries Trust Nash* Vacuum Pumps?
Facilities that depend on continuous operation value equipment that performs consistently over decades of use. Nash systems are trusted because they deliver predictable results with minimal maintenance demands.
Key advantages include long service life, stable vacuum under varying loads, straightforward mechanical construction, low maintenance requirements, and firm performance in aggressive or wet process conditions.
Industries that rely on these systems include paper and pulp manufacturing for dewatering and forming, chemical and pharmaceutical operations for filtration and distillation, food processing for packaging and conveying, power generation for condenser exhausting, and medical facilities for central vacuum systems.
Airvac Your Trusted Nash* Pump Supplier
For customers seeking alternatives to OEM equipment, we manufacture and supply direct drop-in replacements for the AVAirvac Technical Services is an independent Nash pump supplier dedicated to supporting both legacy equipment and modern replacement needs. We provide rebuilt pumps, engineered replacement units, and technical guidance backed by decades of hands-on experience.
series, including AV CL, AV SC, AV 904, and AV XL models. These units are engineered to match original performance specifications while offering cost and availability advantages.
OEM Nash Models and Airvac Replacement Pumps Comparison
OEM Nash Vacuum Pump Model | Airvac Replacement Model | Compatibility | Key Benefits |
Nash CL Series | AV CL Series | Direct drop-in replacement | Matches original flow and vacuum performance with reduced lead time |
Nash SC Series | AV SC Series | Direct drop-in replacement | Engineered for continuous duty with improved serviceability |
Nash 904 Series | AV 904 Series | Direct drop-in replacement | Proven reliability for high-demand industrial applications |
Nash XL Series | AV XL Series | Direct drop-in replacement | Designed for large capacity systems and long operating cycles |
Legacy Nash Models | Airvac Engineered Replacements | Application matched | Custom solutions for discontinued or aging equipment |
Rebuilt and Remanufactured Nash* Pumps.
Rebuilding is often the most cost-effective way to restore performance while minimizing downtime. Airvac rebuilds each pump to factory-level standards through complete disassembly, inspection, machining, balancing, and testing.
Every rebuilt unit is performance tested before shipment and delivered ready for installation. Our swap-out program allows customers to receive a rebuilt unit first and return their core later, significantly reducing production disruption.
Nash* Pump Parts and Accessories
Airvac stocks and supplies a full range of critical components to support ongoing maintenance and repairs. Available items include bearings, seals, impellers, gaskets, casings and cones, shafts, and mechanical seal kits.
Our parts inventory supports both active and discontinued models, helping facilities keep older systems running reliably without long OEM lead times.
Technical Capabilities and Product Range
- Supports a broad range of flow capacities to match varying process demands
- Designed for multiple vacuum levels and operating pressures
- Compatible with low and high horsepower requirements
- Available in cast iron and stainless steel constructions
- Suitable for corrosive, wet, and hygienic environments
- Engineered for continuous duty and long operating cycles
- Scalable solutions for small medical systems and large industrial installations
Industries Served
- Paper and pulp manufacturing
- Food and beverage processing
- Chemical and pharmaceutical production
- Power generation and utility operations
- Medical and healthcare vacuum systems
- Mining and metals processing
- General industrial manufacturing
- Trusted by facilities where vacuum system uptime directly impacts safety and production
- Valued for fast response, reliable performance, and long-term technical expertise
Our Range Of Products
Nash* CL Series Replacement
AV-CL series
Nash* SC Series Replacement
AV-SC Series
Nash* 904 Series Replacement
AV-904 Series
Nash* XL Series Replacement
AV-XL Series
Frequently Asked Questions
What are Nash* vacuum pumps used for?
They are used in industrial and medical applications that require a reliable vacuum under wet or contaminated conditions.
Are Nash* vacuum pumps reliable?
Yes, they are known for long service life and stable performance when properly maintained.
What types of Nash* vacuum pumps exist?
Standard designs include liquid-ring vacuum pumps, compressors, and specialized air-handling models.
Do you supply replacement Nash* pumps?
Yes, Airvac provides engineered replacement solutions designed for direct compatibility.
What is a Nash* liquid ring vacuum pump?
It is a positive-displacement pump that uses a liquid seal to generate a vacuum and safely handle vapors.
Are drop-in replacements available?
Yes, Airvac manufactures compatible replacement units for prominent Nash model families.
Do you offer rebuilt Nash* pumps?
Yes, rebuilt units are available with testing and fast turnaround options.
How do liquid ring compressors work?
They compress gas using a rotating liquid ring that provides sealing and heat absorption.
Can old Nash* pumps be restored?
In most cases, yes, through professional rebuilding and component replacement.
Contact & Request a Quote
If you need support for existing equipment or are planning a replacement, our team is ready to help. Contact Airvac Technical Services to request a quote, discuss your application, or get technical guidance from experienced Nash specialists.