Kofloc Model 2412 Flow Meters and Controllers for Liquid

Description

Brand

Features

Applications

Specification

Additional Information

Kofloc

The Kofloc Model 2412 is often referred to as a “Precision Purge Meter.” For liquid applications, it utilizes a specially calibrated tapered glass tube and a float designed to minimize the effects of viscosity and surface tension.

The highlight of this model is its integrated needle valve, which uses a non-rotating needle design to prevent seat wear and ensure high-resolution control. This makes the 2412 ideal for micro-flow liquid control, where even a fraction of a milliliter per minute matters. The body is typically crafted from Stainless Steel (SUS316), ensuring that it can handle deionized water and various chemical solutions without corroding or contaminating the fluid.

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.

Ultra-Fine Control: Equipped with a precision needle valve for minute liquid adjustments.
High Stability: Non-rotating needle design ensures long-term calibration consistency.
Excellent Visibility: Clear, easy-to-read scale on a high-quality borosilicate glass tube.
Compact Block Construction: Rugged and space-saving, perfect for high-density instrument panels.
Premium Materials: Available in SUS316 for superior chemical and water resistance.
Custom Scales: Can be calibrated specifically for the density and viscosity of your liquid.

The Kofloc Model 2412 for Liquid is essential for:

Precision Chemical Dosing: Managing small-scale additive injection in chemical reactors.
Laboratory Analysis: Constant flow delivery for liquid chromatography or titration.
Semiconductor Processing: Controlling DI water flow for wafer cleaning and rinsing.
Cooling Systems: Monitoring ultra-low flow cooling loops for sensitive laser or sensor equipment.
Pharmaceutical Production: Accurate measurement of liquid ingredients in pilot plants

Feature	Specification
Measurement Principle	Variable Area (Tapered Glass Tube)
Applicable Liquids	Water, Deionized Water, Chemicals, Oils
Accuracy	Within $pm$ 2% Full Scale (Precision Grade)
Max Operating Pressure	1.0 MPa (Standard)
Operating Temperature	0°C to 60°C
Wetted Materials	SUS316, Pyrex Glass, Fluororesin, Viton
Connection Size	Rc 1/4 (Standard)

* Due to operating conditions and instrumental errors, there may be differences between the values indicated

in the table above and those that are　actually used by the customer.

* The values shown in the table above are data for Model 2412L for illustrative purposes only. As compared with the 2412L, flows on the 2412T will

run less smooth when the flow rate increases. It is therefore recommended that the 2412L be used for flows of 5 L/MIN or more.

Due to operating conditions and instrumental errors, there may be differences in the range of 80% to 130% between the
values indicated in this table and those that are actually used by the customer. Please use these values for reference only

Flow rate when the outlet valve is totally opened to release flows into air

Needle #	Supply pressure (MPa)(Air at 20℃)							Supply pressure (MPa)(Water at 20℃)
Needle #	0.05	0.1	0.2	0.3	0.4	0.5	0.6	0.05	0.1	0.15
#SS1	0.023	0.047	0.078	0.11	0.15	0.19	0.22	－	－	－
#S1	0.08	0.11	0.2	0.27	0.34	0.4	0.47	－	－	－
#1	0.15	0.23	0.36	0.51	0.65	0.79	0.93	0.00145	0.0026	0.0036
#2	0.34	0.46	0.71	1.0	1.2	1.5	1.75	0.0076	0.012	0.0153
#2A	0.45	0.65	1.0	1.3	1.65	2.0	2.3	0.0132	0.0195	0.0245
#3	0.9	1.3	2.0	2.6	3.25	3.9	4.6	0.0260	0.0390	0.0510
#3A	1.25	1.9	2.75	3.65	4.5	5.3	6.4	0.0365	0.0546	0.0740
#3B	1.85	2.5	3.7	5.0	6.0	7.2	8.3	0.053	0.0760	0.0980
#4	4.3	6.2	9.0	12.0	15.0	18.3	22.0	0.124	0.188	0.234
#4A	8.0	11.0	15.0	21.0	26.0	31.0	36.0	0.228	0.336	0.417
#5	10.0	14.0	21.0	27.0	33.0	40.0	46.0	0.294	0.435	0.576
#6	22.0	31.0	45.0	60.0	75.0	92.0	105.0	0.564	0.834	1.100
#6A	30.0	41.0	60.0	80.0	100	118	138	0.774	1.190	－
#6B	38.0	53.0	82.0	106	135	160	185	1.280	1.950	－
#7	80.0	110	160	215	260	285	310	1.840	2.890	－