Kofloc 2412M Flow Meters and Controllers for Liquid

Description

What distinguishes the Kofloc 2412M is its specialized needle valve mechanism. The “M” designation signifies a larger valve orifice and needle assembly, which provides a smoother, more linear adjustment curve for liquid flows. This design prevents the “jumpy” flow changes often seen in smaller valves when used with liquids.

The unit features a precision-tapered borosilicate glass tube. For liquid applications, Kofloc uses a specialized float design to maintain stability against fluid viscosity and surface tension. Because the 2412M uses a non-rotating needle, it significantly reduces wear on the valve seat, ensuring that once you set your flow rate, it stays locked in place without drifting over time.

Brand

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

Middle-Sized Precision Valve: Optimized for stable control in small-to-medium liquid flow ranges.
Non-Rotating Needle: Minimizes mechanical wear for superior repeatability and longevity.
High-Purity Construction: SUS316 wetted parts and Pyrex glass ensure compatibility with DI water and chemicals.
Stable Float Technology: Specifically calibrated to handle the density and viscosity of liquids without “chattering.”
Easy Maintenance: The glass tube can be cleaned or replaced without removing the entire block from the panel.
Compact Block Design: Ideal for high-density integration into water treatment or chemical panels.

Applications

The Kofloc 2412M for Liquid is essential for:

Water Treatment Pilot Plants: Precise dosing of flocculants or chemical additives.
Semiconductor Wet Processing: Managing rinsing water or chemical supply lines.
Cooling Water Monitoring: Ensuring exact flow rates for high-power laser or laboratory equipment cooling.
Food & Beverage: Controlling liquid flavorings or additives in small-batch production.
Chemical Research: Precise reactant feed control in high-pressure reactor setups.

Specification

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

Additional Information

Table of Rated Flow Ranges (Reference)

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	－
* Due to operating conditions and instrumental errors, there may be differences between the values indicated											(L/MIN）
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.