Independently developed by VONTRON, the RO element ULP1812-50 is designed for the treatment of low-salinity water resources such as tap water, well water, etc. Working under extra-low pressure, it is applicable to water purifying devices in residence, hospital, and laboratory.

Properties and Testing Conditions

Model	Average Permeate (GPD)	Stable Rejection (%)	Min. Rejection (%)
ULP1812-75	75	97.5	96

Notes: Permeate of a single element may vary within [-20%] ~ [+20%]

Testing Conditions:

Testing Pressure: 60 psi (0.41MPa)
The temperature of Testing Solution: 25°C
The concentration of Testing Solution (NaCl): 250 ppm
the pH of Testing Solution: 6.5~8.5
Recovery of Single Element: 15%

Properties and Testing Conditions

Model		ULP-1812-50	ULP-1812-75	ULP- 1812-100
Perfor-mance	Stable Desalination %	97	97	97
	Min. Desalination %	96	96	96
	Mean Permeable Flow GPD (L/d)	50 (204)	75 (281)	100 (380)
	Active Film Area ft2(m2)	3.5 (0.32)	4.2 (0.38)	5.0 (0.46)
Test Conditions	Pressure	65psi (0.45Mpa)
	Water Temp.	25℃
	Concentration(NaCl)	500ppm
	Water PH	6.5 to 7.5
	Recovery Rate %	15
Operating Conditions	Max. Operating Pressure	200psi (2.0Mpa)
	Max. Feed Water Temp.	45℃
	Max. Feed Water Silt Density Index (SDI)	5
	Feed Water Chlorine Tolerance	< 0.1 mg/l
	Feed Water PH Range, Continuous Operation	3 to 10
	Feed Water PH Range, Short-Term Cleaning	2 to 11
	Max. Pressure Drop of Single Membrane	10psi (0.07Mpa)