Mass Flow

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.

A flow controller is a differential pressure regulator designed to control minute gas flows with precision and keep a certain constant flow rate. Model 2203 Variable Secondary Pressure Flow Controller is a control valve that keeps mass flows at a constant rate under a given constant level of supply pressure even when the load pressure on the secondary side (outlet side) fluctuates, and its construction is designed so that the performance of its precision control over flows to the set flow rate is maintained by the incorporated precision needle valve without being affected by such fluctuations.

This is a miniature needle valve at an affordable price with simplified construction that allows easy control of operation for fine regulation of gases and liquids. Its simplified structure is comprised of the components that are the minimum requirement, avoiding overspecification

This bellows seal type needle valve has been specifically developed so that it can satisfy the requirements for such areas in which leak is a concern of vital importance. Model 2450 Bellows Needle Valve has a construction to drastically prevent fluid leaks. In addition, it is outstanding in heat resistance and corrosion resistance, so the customer can use it with peace of mind not only in such adverse conditions where high vacuum, high pressure, high temperature or extremely low temperature is present but also for corrosive, toxic or costly fluids.

This is an enhanced model of the KOFLOC Precision Needle Valve Model 2412 (see page 102), which now incorporates a multidial that allows the user to set desired flow rates by dial operations. This valve makes the most of the rotationto-flow linearity and repeatability performance of the 2412 needle.

This needle valve has been designed to control minute gas and liquid flows 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.

The Model 3000 Series maintains flow control characteristics with hysteresis of 15% or less (full-scale current). This ultra-compact proportional solenoid valve is perfect for automatic gas flow control of gas chromatographs and various other analyzers. With its high resolution, the Model 3000 is also suitable for precision pressure control.

Amber tapered tube with secure structure

This acrylic resin flow meter is designed for measuring large flow. The flow meter integral with a transparent acrylic panel permits easy reading, coming in two types according to the direction of flow – one from bottom to top and the other on the back side. It can be mounted on< a panel with a support metal.

This acrylic resin flow meter covers a wide flow range Two types, with and without a valve, are available. The flow meter integral with a transparent acrylic panel permits easy reading, making it ideal for water treatment systems, purge systems, and medical equipment.

This is a compact lightweight acrylic flow meter. Models with or without a valve are available. The integrated transparent acrylic panel structure permits easy reading of the flow. This model is ideal for air sampling equipment, medical equipment, and analyzers.

The flow meter for gas mixing uses a KOFLOC multiple flow meter to mix multicomponent fluids. Connection of pipes to respective gas inlets and the mixed gas outlet permit gases to be mixed. This flow meter is ideal for easy gas mixing in laboratories and studies.

This multiple flow meter with a needle valve is made by combining several types of flow meter for controlling various flows in a laboratory. It is designed based on the RK1200, a flow meter with precision needle valve, and has been verified to have outstanding reliability.

The easy-to-handle RK1360 Series for laboratory use is ideal for high-precision measurement and control of very small flow.

These are large capacity float type flowmeters. Flows within the ranges of 200 to 1,000 L/MIN (for gases) and 10 L/MIN to 30 L/MIN (for liquids) full scale can be measured and controlled.

These compact reed switch flowmeters developed centering the focus on cost reduction are for monitoring gas and liquid flows. Any of these models is optimum for process control of cooling water.

he RK1935 Series has been developed for compact alarm switches. It is a compact flow meter for small equipment panel designs.

This top-grade high precision, float type area flowmeter is a fruit of KOFLOC's challenge to boost the general perception currently conceived by people of flowmeter of being a "mere yardstick" into a new conception that a flowmeter is a "precision instrument." This flowmeter particularly features its uniquely precision-formed glass tube and ultraprecision ball float that ensures accurate measurements of minute flows to medium flows.

This top-grade high-precision area flowmeter is a fruit of KOFLOC's challenge to boost the general perception currently conceived by people of flowmeter of being a "mere yardstick" into a new conception that a flowmeter is a "precision instrument." This flowmeter particularly features its uniquely precision-formed glass tube and ultra-precision ball float.

The MODEL RK1600R Series Flowmeter is a compact, lightweight model with needle valve designed through our all-out effort at streamlining with the aim of achieving an economical but superior quality flowmeter in accuracy and repeatability, and still more, handy at operation site.

This is a completely renewed model of existing KOFLOC RK1600R with sophisticated design to fit sophisticated laboratory or plant equipment.

This is a compact handy flow control/measuring unit made by combining a compact DIN72 x72 power indicator [CR-400] and MFC/MFM.

Model 3200 Series Mass Flow Controller is an advanced model designed as a successor of the 3910 Series that enjoys a wide use for diverse applications such as manu-facture of semiconductors, LCDs, combustion equipment, analytical devices, and biotechnology fields. Its high per-formance is equal to a new standard of KOFLOC.

Model 3660 Series Mass Flow Controller has been devel-oped centering the focus on compactness and low cost and is being acclaimed by a wide range of users for di-verse applications, including from laboratory research and development activities to the use as a standard mass flow control model for various types of analyzers and vacuum devices in the production line. Varieties of derived models and options are available.

DF-550C is now released as an all-metal model of the high-performance digital mass flow controller DF-250C Series. The metal sealed structure enables controlling the measurement of corrosive gases such as semiconductor process gases.

The Model DF-350 Series is a digital mass flow controller with an integral indicator that operates on a 24-V power supply. It offers features equivalent to the DF-250 Series designed for up to 50 SLM.