Municipal tap water reverse osmosis membrane TW-4040

The TW (TapWater) series membrane elements are designed for desalination of water sources—including surface water, groundwater, tap water, and municipal water—with a salt content of approximately 2000 ppm or less. They are primarily used in a wide range of industries, such as the production of purified water of various scales, boiler feedwater, food processing, and pharmaceutical manufacturing.

◎ Product Introduction and Application Fields

　　The TW (TapWater) series membrane elements are designed for desalination of water sources—including surface water, groundwater, tap water, and municipal water—with a salt content of approximately 2000 ppm or less. They are primarily used in a wide range of applications, such as producing purified water of various scales, boiler feedwater, food processing, and pharmaceutical manufacturing.

 

◎ Model Specifications and Parameters

Product Model	Effective membrane area ft² (㎡)	Application test pressure psi (MPa)	Water production GPD (m³/d)	Stable Desalination Rate / %
TW-4040-HR	90 (8.4)	150(1.03)	2400 (9.1)	99.3
TW-4040-HF	90 (8.4)	150(1.03)	2700 (10.2)	99.0
TW-4040-FR	90 (8.4)	150(1.03)	1900 (7.2)	99.5

 

　　a. The water production rate and desalination rate are based on the following test conditions: softened tap water at 1500 ppm, water temperature of 25℃, pH 7.5, a single-element recovery rate of 15%, and the rated operating pressure specified above.

　　b. The water production of a single component may vary within a range of ±15%.

 

◎ Operating Limits

 

Operating limit	Membrane element type	Polyamide composite membrane
	Maximum operating temperature	45℃
	Maximum working pressure	600 psi (4.14 MPa)
	Maximum Inflow Rate	14 GPM (3.2 m³/h)
	Minimum brine flow rate	3 GPM (0.7 m³/h)
	Continuous operating pH range	3-10
	pH range for chemical cleaning	2-12
	Maximum Silt Density Index (SDI) for Inlet Water 15	5
	Maximum Inlet Turbidity/NTU	1
	Maximum residual chlorine concentration in influent / (mg/L)	0.1
	Maximum pressure drop for a single component	15 (0.1) psi (MPa)