Oil Lubricated Rotary Vane Vacuum Pump 2XA Series 0.25-25L/s High Ultimate Vacuum

Oil Lubricated Two Stage Rotary Vane Vacuum Pump 2XA Series 0.25-25 L/s High Ultimate Vacuum

Product Overview

The 2XA series two-stage oil-lubricated rotary vane vacuum pump adopts high-speed direct-coupled two-stage structure for deep high vacuum. Fitted with specially designed gas ballast valve, it prevents water contamination of vacuum oil and extends oil service life while maintaining excellent vacuum level. The pump uses mature international design, small footprint, light weight, low noise and convenient startup. Built-in forced automatic oil supply mechanism allows stable operation even under atmospheric pressure. It features reliable anti-return oil and zero leakage performance, no environmental pollution. This pump can run independently for gas extraction or act as fore pump for booster pumps, diffusion pumps and molecular pumps.

Key Features and Benefits

Two-Stage Deep Vacuum Structure

Two-stage series compression structure achieves ultra-low ultimate pressure as low as 6×10⁻² Pa, meets high-vacuum process requirements.

Built-in Gas Ballast Valve

Special gas ballast valve prevents water vapor from mixing into vacuum oil, prolong oil service cycle and retains good vacuum performance when gas ballast is open.

Forced Automatic Oil Feed System

Independent oil pump assembly supplies lubricating oil actively; the pump can start and operate normally at atmospheric pressure.

Anti-Backflow & Oil Tight Design

Effectively prevents oil backflow, eliminates oil leakage and avoids oil contamination to vacuum chamber and surrounding environment.

Compact, Light & Quiet Operation

Optimized body layout, small volume and light weight. Low running noise, simple startup and easy on-site installation.

Versatile Working Role

Can be used as standalone vacuum pump, or pre-pump / backing pump for diffusion pump, molecular pump and booster vacuum systems.

Working Principle

This two-stage rotary vane vacuum pump consists of two series-connected pumping chambers. Rotors and sliding vanes rotate at high speed, and vacuum oil serves for sealing, lubricating and cooling. Gas is compressed step by step through the first stage and second stage cavity to obtain far deeper vacuum than single-stage vane pumps. The gas ballast valve injects dry air to dilute condensable vapor and protect vacuum oil.

Technical Specifications

Note: Product images are for reference only. The final delivered product shall be subject to the actual goods. For detailed parameters and customization, please consult our professional customer service team.

Industrial Applications

Suitable for laboratory vacuum setups, scientific research, vacuum coating, and serves as backing / foreline pump for booster pumps, diffusion pumps and molecular pump systems. Also widely used in analytical instruments and small high-vacuum process equipment.

Why Choose AIRIPA?

Direct Factory Manufacturing With our own production workshops and assembly lines, AIRIPA offers factory-direct communication, coordinated production support, and efficient technical discussions for industrial vacuum and compressed air projects.

R&D & Engineering Expertise Our engineering team focuses on industrial vacuum and air compression technology, precision engineering, and continuous product optimization, supported by technical collaboration with industry specialists and research teams.

In-House Assembly & Factory Testing AIRIPA operates its own assembly lines and professional factory testing equipment, supporting full production oversight, strict quality management, and comprehensive product performance verification before delivery.

OEM, ODM & Private Labeling Services We support OEM, ODM, and private labeling services for equipment manufacturers, distributors, and industrial brands, including customized product configurations, system integration, and branding requirements.