Kofloc Model 2412D Large Capacity Precision Needle Valve

Description

The Kofloc Model 2412D Large Capacity Precision Needle Valve represents an evolution in needle valve technology, specifically engineered to handle larger flow rates without losing the sensitivity required for delicate adjustments. Its internal needle is precision-ground to a specific taper, allowing for a smooth increase in flow that is directly proportional to the rotation of the adjustment knob.

This model features a non-rotating stem design (in specific configurations) which minimizes wear on the needle and orifice, significantly extending the service life of the valve. The Kofloc Model 2412D Large Capacity Precision Needle Valve is particularly effective in systems where mass flow controllers might be too complex or expensive, yet where standard ball or globe valves lack the necessary tuning capability. Whether used for pilot plants or heavy industrial gas mixing, this valve provides the stability and performance expected from Kofloc’s world-class instrumentation.

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.

Features

High flow capacity while maintaining superior precision adjustment.
Linear flow characteristics for predictable and repeatable control.
Non-rotating stem design to reduce friction and prevent seat wear.
Available in various high-grade materials for chemical compatibility.
Precision-cut threads for fine-tuning even at high pressures.
Robust construction suitable for both gas and liquid media.

Specification

Model: 2412D
Flow Characteristic: Linear adjustment
Applicable Fluids: Air, N2, O2, Ar, H2, He (Gases) and various Liquids
Max Flow Rate: Designed for large capacity (refer to specific Cv values per model)
Maximum Operating Pressure: 1.0 MPa (Standard)
Operating Temperature: 5°C to 60°C (Standard) / Optional high-temp versions
Connection Size: Rc 1/4, Rc 3/8, or Rc 1/2
Materials: SUS316 Stainless Steel, Brass, Fluorocarbon Rubber

Additional Information

The actual flow may be different from the values shown in the table　depending on the operating conditions and
instrument errors. Please　use these values for reference only.

Outlet side open to air at 20°C
Needle	Max.	Supply pressure (MPa)
No.	CV value	0.01	0.05	0.1	0.2	0.3
#8	0.48	50	135	200	280	370
#9	0.83	65	235	320	480	—
#10	1.06	80	300	440	—	—
						Unit: L/MIN

Applications

Industrial Gas Mixing: Precise blending of gases in large-scale manufacturing.
Pilot Plant Systems: Controlling feedstock flow in chemical process development.
Large-scale Vacuum Systems: Managing vent and bleed rates in vacuum chambers.
Cooling Systems: Regulating high-volume coolant flow for industrial machinery.
Fuel Cell Testing: Precise control of hydrogen and oxygen feed lines in high-power test stands.