Kofloc Precision Needle Valve 2412D Series

Large Capacity Precision Needle Valve (for Stable Control)

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).

Kofloc Precision Needle Valve 2412D Series


  • 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.

Specifications of Kofloc Precision Needle Valve 2412D Series

  • Number of turns of regulating screw : Approx. 8-12 turns
  • Needle : 3 types
  • Materials of parts in contact with fluids : 
(A) Brass, Al, NBR, POM
(SS) SUS316, FKM, fluorocarbon resin
  • Connection end : Rc 3/8, Rc ¼
  • Fluid : Gas and liquid
  • Rated flow ranges : See the table below

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