Koganei Membrane Air Dryer KRM

Manufacturer: KOGANEI CORPORATION

Features

This freon-free air dryer uses hollow fiber membranes, providing a gentle touch to the environment without requiring a power supply. As a result, no power supply is needed, enhancing both efficiency and eco-friendliness.

Moreover, the absence of mechanical moving parts eliminates vibrations and heat emissions, contributing to a long service life. The built-in dew point indicator further allows for easy condensation checks, ensuring optimal performance.

Additionally, the extracted moisture is released as water vapor, preventing any issues with drain media. This design also makes the unit compact and lightweight, occupying just 1/5th of the installation space and less than 1/10th of the mass compared to Koganei refrigerating-type air dryers.

Specifications

Item	Model	KRM-05	KRM-1	KRM-3
Media		Air
Operating pressure range	MPa [psi]	0.2～0.83 [29～120]	0.2～0.83 [29～120]	0.2～0.83 [29～120]
Supply air temperature	°C [°F]	5～55 [41～131]	5～40 [41～104]	5～40 [41～104]
Ambient temperature	°C [°F]	5～55 [41～131]	5～40 [41～104]	5～40 [41～104]
Supply air temperature	°C [°F]	30 [86]
Ambient temperature	°C [°F]	28 [82.4]
Vapor content in supply air		Saturation at 28°C [82.4°F]
Supply air pressure	MPa [psi]	0.69 [100]
Normal ratings
Supply air flow rate	ℓ/min [ft³/min] (ANR)	33～133 [1.3～4.70]	65～205 [2.30～7.24]	195～615 [6.89～21.71]
Purged air flow rate**	ℓ/min [ft³/min] (ANR)	13 [0.46]	25 [0.88]	75 [2.65]
Dry air flow rate	ℓ/min [ft³/min] (ANR)	20～120 [0.71～4.24]	40～180 [1.41～6.36]	120～540 [4.24～19.07]
Dry air dew point	°C [°F]	－26～－10 [－14～14]	－26～－12 [－14～10]	－26～－12 [－14～10]
Mass	kg [lb.]	0.4 [0.88]	1.0 [2.2]	0.9 [2.0]