Nash CL Series Replacement

AV CL Series – Single Stage, Dual Cone, Liquid Ring Vacuum Pumps, and Compressors

Airvac CL series liquid ring vacuum pumps are heavy-duty, single-stage pumps designed for demanding industrial applications and harsh environments. They are particularly well-suited for tasks like dewatering in the paper industry and vacuum filtering in mineral ore processing. Their robust design also allows them to handle some solids, making them suitable for applications where other pumps might struggle

Airvac offers the AVCL Series liquid ring vacuum pumps, ranging from 20 to 550 HP, as an ideal replacement or repair option for the classic Nash CL series. These drop-in replacement single stage dual cone pumps are available in various models: NL-400, 700, 1000, 1500, 2000, 3000, 4000, 6000, and 9000 (up to 10,000 CFM), with vacuum ranges from 5” to 28” Hg depending on the model. Constructed with standard cast iron and Teflon packing, AV CL Series pumps undergo performance testing and come with a comprehensive 2-year warranty against manufacturer’s defects.

We have directly interchangeable parts with the NASH Classic CL.

Model

Nash*	Airvac Equivalent	Suction	Discharge*
CL-400	AVCL-300	3” Flange	2.5” Flange
CL-700	AVCL-400	4” Flange	3” Flange
CL-1000	AVCL-650	5” Flange	4” Flange
CL-1500	AVCL-900	6” Flange	4” Flange
CL-2000	AVCL-1250	6” Flange	5” Flange
CL-3000	AVCL-2500	8” Flange	6” Flange
CL-4000	AVCL: 4000	10” Flange	8” Flange
CL-6000	AVCL-6000	12” Flange	10” Flange
CL-9000	AVCL-9000	14” Flange	12” Flange

About AV CL Series

• Models: AVCL-400, 700, 1000,1500, 2000, 3000, 4000, 6000, and 9000
• Power Range: 20 HP to 550 HP
• Capacity Range: 300 CFM to 10,000 CFM
• Maximum Vacuum: Up to 28″ Hg
• Materials of Construction (MOC): Cast Iron, Bronze, Stainless Steel 304, Stainless Steel 316 Clad

Features

• Drop-in Replacement: AV CL Series liquid ring vacuum pumps serve as direct replacements for the classic Nash CL series.
• Construction Options: Standard models feature durable cast iron with packing, with optional upgrades to 304 or 316 stainless steel.
• Optional Viton Seals: Available with optional Viton mechanical seals for enhanced sealing performance.
• Parts and Repair Kits: Easily accessible parts and repair kits ensure convenient maintenance and longevity.
• Engineered Systems: Available as standalone pumps or integrated into engineered systems tailored to specific applications.
• Fast Availability: Standard models are typically stocked for quick shipment and installation.
• Warranty Coverage: Includes a comprehensive 2-year warranty against manufacturer’s defects for peace of mind.
• Heavy Duty Design:
The pumps are built to withstand demanding industrial conditions.
• Single Stage:
They are single-stage pumps, offering a balance of performance and simplicity.
• Wide Capacity Range:
They come in various models with a wide range of suction volumes, vacuums, and pressures.
• Ability to Handle Some Solids

Applications

• Dewatering: The paper industry relies on CL series pumps for dewatering processes in paper machines.
• Vacuum Filtering: Mineral ore processing utilizes these pumps for vacuum filtration.
• Autoclaves: They are used in autoclaves for various processes.
• Carburetor Testing: CL series pumps are also used in carburetor testing.
• Chucking: They are used in chucking applications.
• Condenser Air Removal: Removal of air from condensers is another application.
• Container Filling: These pumps are involved in container filling processes.
• Cooking: CL series pumps are used in cooking applications.
• Deaerating: They are used for deaerating processes.
• Drying: Drying applications, particularly in food processing plants, utilize these pumps.
• Eviscerating: They are used in eviscerating processes.
• Exhausting: Exhausting processes in various industries utilize CL series pumps.
• Molding Pickup and Conveying: They are used in molding and conveying applications.
• Priming: Priming pumps are another application.
• Slot Extraction: CL series pumps are used in slot extraction.
• Solvent Recovery: They are also involved in solvent recovery processes.
• General Industrial Applications: They are also used in a wide range of other general industrial applications.