Kofloc Grease-less Needle Valve Model 2420 SERIES

Description

The Kofloc 2420 SERIES Grease-less Needle Valve was developed for applications where fluid purity is the absolute priority. In standard valves, lubricants are often used on mechanical parts to ensure smooth operation; however, these lubricants can evaporate or leach into the gas stream (outgassing), potentially damaging sensitive sensors or posing a fire hazard in pure oxygen systems. The 2420 series overcomes these challenges by using self-lubricating materials and a proprietary cleaning process during manufacturing. This grease-less design ensures that no oil residue comes into contact with the flow media. Beyond its cleanliness, this valve maintains Kofloc’s signature excellence in providing smooth and stable micro-flow control. Built with a corrosion-resistant Stainless Steel body, the 2420 series offers long-term reliability without compromising the chemical integrity of the gases or liquids being regulated.

Brand

Kofloc

The natural environment is preserved through the balance of solids, liquids and gases that exist on the earth. However, human civilization has caused pollution that has greatly damaged our environment. The task of the present generation is to restore our environment to its natural healthy state. And this is also the greatest challenge for 21st century science and technology.

KOFLOC's corporate motto is "A Scientific Approach for Fluids." In other words, we create products that scientifically measure and control the balance of liquids and gases. We trust that through our work we are making a contribution to the regeneration of the environment and to the establishment of a prosperous society.

Specifications

Applicable fluids
gas N2, Air, He, Ar, O2, CO2
liquid H2O
Max Flow rate
gas 20mL/min to 180L/min (air at 20℃, 0,1MPa differential pressure) up to woring conditions, for details see the reference data
liquid 500mL/min to 4L/min (H2o at 20℃, 0,1MPa differential pressure)

Features

Grease-less Technology: The entire flow path is free from oil lubricants to prevent fluid contamination.
Precision Micro-Flow Control: Enables extremely small flow rate adjustments with high stability.
High Oxygen Safety: Ideal for oxygen gas service due to the absence of flammable hydrocarbons.

Applications

Oxygen Gas Systems: Eliminates the risk of explosion or fire caused by the reaction of oxygen with hydrocarbon lubricants.
Semiconductor Industry: Used in cleanroom environments to avoid oil particles during wafer processing.
Analytical Instrumentation: Controlling carrier gas in chromatography systems that require ultra-high purity.