Kofloc Model 2412D Large Capacity Precision Needle Valve

This large capacity needle valve exhibits high performance in precision control of comparatively large flow.


This large capacity needle valve exhibits high performance in precision control of comparatively large flow. The needle valve is a larger version of our precision needle valve (Model 2412) that has time-tested reliability, and is suitable for stable control in a comparatively large flow range of 50–300 l/min (0.1 MPa)




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.


The rotational motion of the flow control screw is changed into a linear motion to ensure smooth flow control without causing a screw gap.

  • The completely clean inside of the valve permits clean flow control.
  • Special grease is used for the section not in contact with liquid to ensure outstanding durability.


Number of turns of regulating screw Approx. 8-12 turns
Needle 3 types
Maximum operating pressure 1 MPa
Materials of parts in contact with fluids (A) Brass, Al, NBR, POM
(SS) SUS316, FKM, fluorocarbon resin
Connection end Rc 3/8, Rc 1/4
Fluid Gas and liquid
Rated flow ranges See the table below.

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

Couldn’t find what you were looking for?

Contact us with your specification for assessment and availability of other products configurations.

Click Here