Kofloc Model 2204 Variable Primary Pressure Flow Controller

Model 2204 Variable Primary Pressure Flow Controller is a control valve that always keeps flows at a constant rate under a given constant level of secondary pressure (outlet pressure) even when the primary pressure (inlet pressure) fluctuates.

Description

Model 2204 Variable Primary Pressure Flow Controller is a control valve that always keeps flows at a constant rate under a given constant level of secondary pressure (outlet pressure) even when the primary pressure (inlet pressure) fluctuates. The built-in precision needle valve accurately controls flows to the set flow rate, including ultra-minute flows.

Brand

Kofloc

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

  • Stable flow control
    A non-rotary needle valve composed of high-precision components ensures smooth control of even ultra-minute flows.
  • Not subject to supply pressure fluctuations
    Flows are protected from being affected by primary pressure (supply pressure) fluctuations, under a given constant level of secondary pressure (outlet pressure).
  • Cleanliness ensured
    All the high-precision components are super-cleaned before assembly so that the product can be safely used even on high-sensitivity instruments for analysis for which cleanliness is essential.

Applications

  • Physical and chemical appliances
  • Control of the second-stage operation of pumps
  • Various instruments for analysis
  • Environmental instrumentation systems

Specification

Rated flow ranges Gas: 10 ML/min–10 L/min
Control accuracy Within the set flow ±2% when the primary pressure (inlet pressure)
changes by 0.3 MPa in a range between 0.07 MPa and 0.8 MPa.
Number of turns of regulating
screw
Approx. 12 turns
Maximum operating pressure 0.8 MPa
Maximum operating temperature 60℃
Materials of parts in contact
with fluids
(A) Al, brass, POM, NBR, SUS316
(SS) SUS316, fluorocarbon resin, FKM
Connection end Rc 1/8 (M8 + Rc 1/8)

Optional Specifications

  • IN side filter joint Model 2300
    • Connection joint

Additional Information

  • You may specify the fluid,pressure and flow rate of your equipment for our selection of the type that most suits your requirements.Use the values on Table of Rated Flow Ranges for reference purposes only.
  • At least an inlet/outlet pressure difference of 0.07 MPa is required.