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External pressure column ultrafiltration
Your location: Home > Products > RTL-4040-PVDF
RTL-4040-PVDF
Column ultrafiltration membrane module is a screening tool that utilizes membrane separation technology to separate the two sides of the membrane
Using pressure difference as the driving force and ultrafiltration membrane as the filtering medium, the surface of the ultrafiltration membrane is densely covered with many particles
Small micropores only allow water, small molecules, and soluble solids to pass through and become permeable
Liquid, while substances with a volume larger than the surface micropores of the membrane in the original solution are trapped in the inlet of the membrane
On the side, it becomes a concentrated solution, thus achieving the purpose of purifying, separating, and concentrating the original liquid. There are two types of column ultrafiltration membrane components: internal pressure and external pressure.
Consultation Hotline : 86-574-63024862 


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Product Introduction:
Column ultrafiltration membrane module is a screening tool that utilizes membrane separation technology to separate the two sides of the membrane
Using pressure difference as the driving force and ultrafiltration membrane as the filtering medium, the surface of the ultrafiltration membrane is densely covered with many particles
Small micropores only allow water, small molecules, and soluble solids to pass through and become permeable
Liquid, while substances with a volume larger than the surface micropores of the membrane in the original solution are trapped in the inlet of the membrane
On the side, it becomes a concentrated solution, thus achieving the purpose of purifying, separating, and concentrating the original liquid. There are two types of column ultrafiltration membrane components: internal pressure and external pressure.
Product advantages:
The membrane fiber has high strength and a breakage rate of less than 0.3%.
The central pipe bracket adopts a unique design, with evenly distributed membrane fibers, smooth water flow, and long service life.
Reliable performance, high cleaning resistance, and good flexibility.
The produced water has good quality and can remove almost all suspended particles, microorganisms, colloids, viruses, and bacteria.
Product Performance List:
Specifications A B L1 L2 L3
RTL-4040-PVDF 90 99 931 959 1007


Component parameters Component model RTL-4040-PVDF
Effective membrane area (m²) 5.5
Shell material UPVC
Casting form Epoxy resin
Sealing form and material O-ring/EPDM
Equipment weight (net weight/gross weight, kg) 3.3/3.6
APPLICATION PARAMETERS Filtration flux (25ºC) 40-120 L/m²/hr
Flow range 0.22-0.66 m³/hr 
Backwash flux 100-120 L/m²/hr
Gas wash flow rate during operation 0.9-2.1 Nm³/hr 
PH range during operation 2-11
Temperature 1-40ºC
Maximum inlet component pressure (at 20ºC) 6.25 bar
Maximum transmembrane pressure difference during operation 2.1 bar
Maximum backwash pressure 2.5 bar
Maximum NaOCl tolerance concentration 2,000 mg/L
Maximum tolerable concentration of suspended solids 100 mg/L
Turbidity (highest) 300 NTU
Particle size (maximum) 300 μm
Flow direction setting External pressure structure, cross flow/dead end filtration
Expected turbidity of produced water ≤ 0.5 NTU
Expected Water Production Sludge Density Index (SDI) ≤ 2.5

Suggested parameters for application design Type of inflow Tap-water Groundwater Surface Water Recycled Water Waste Water
Turbidity ＜1 ＜2 ＜2 ＜5 ＜15 ＜50 ＜20 ＜20
Security filtration Optional Recommend
Design flux
(L/m²/hr) 		90-100 80-90 70-80 70-80 60-70 50-60 50-70 20-40
Rate of recovery 95% 90% 85% 80% 70%
Backwash interval 60m 30m 20m
Backwash time 60s 60s 60s 60s 60s 100s 100s 100s
Backwash pressure 0.15MPa-0.2Mpa
Backwash flux
(L/m²/hr) 		150-200 100-150 60-100
Chemical Cleaning Not recommended Optional Recommend
Online consultation
zhangyy@rtlwater.com
0574-63206668
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