Precision Needle Valve w/Non-rotary Needle
MODEL 2412 SERIES
![](https://flowiratama.files.wordpress.com/2017/05/a9254-2412s.png?w=277)
with precision and ease. Design allows the rotation of the regulating
screw to transform into linear motion of the needle without subjecting
the needle to gaps and/or vibrations produced by the screw, so smooth,
stable flows can be ensured.
Features
1.Capable of controlling ultra-minute flows
Very accurate, stable control of ultra-minute flows up to 1 ml/min possible
2.Wide variations of needle type
15 types of needles are available for your choice of the type that best suits your needs.
3.Needle of non-rotary structure
Because this valve is constructed so that the rotation of the regulating screw
is transformed into linear motion of the needle, the valve has a
longer life in addition to superior control performance.
4.Superior temperature characteristic (15-35°C)
The valve counts on an outstanding temperature characteristic (flow
fluctuations remain within an insignificant range of 0.3%/°C to ambient
temperature variations) thanks to the temperature compensation system
incorporated in the valve’s needle and orifice. This temperature
compensation system is a utility model of KOFLOC registered at the
United States Patent and Trademark Office. (Optional specification for
needles #SS1 to #3B-BS)
This
temperature compensation system is applicable to gases only, and not to
liquids, because the viscosity of a liquid may fluctuate depending upon
the temperature conditions.
Very accurate, stable control of ultra-minute flows up to 1 ml/min possible
2.Wide variations of needle type
15 types of needles are available for your choice of the type that best suits your needs.
3.Needle of non-rotary structure
Because this valve is constructed so that the rotation of the regulating screw
is transformed into linear motion of the needle, the valve has a
longer life in addition to superior control performance.
4.Superior temperature characteristic (15-35°C)
The valve counts on an outstanding temperature characteristic (flow
fluctuations remain within an insignificant range of 0.3%/°C to ambient
temperature variations) thanks to the temperature compensation system
incorporated in the valve’s needle and orifice. This temperature
compensation system is a utility model of KOFLOC registered at the
United States Patent and Trademark Office. (Optional specification for
needles #SS1 to #3B-BS)
This
temperature compensation system is applicable to gases only, and not to
liquids, because the viscosity of a liquid may fluctuate depending upon
the temperature conditions.
Applications
1.For accurate control of minute flows of gases and liquids
Standard Spesifications
Rated flow ranges : Rated flow ranges
Number of turns of regulating screw : Approx. 12 turns
Maximum operating pressure : 1.0 Mpa
Maximum operating temperature : (B) 70℃
(SS) 120℃
(SS) 120℃
Materials of parts in contact with fluids : (B) Brass, POM, NBR
(SS) SUS316, fluorocarbon resin, FKM
(SS) SUS316, fluorocarbon resin, FKM
Fluids : Gas and liquid
Connection end : Rc 1/4 (standard)