Membrane type reverse osmosis (RO) membrane brand DOW/ Dow applicable water
Purpose: water filter thickness 150 (mm) application tap
Filtration mode internal pressure performance of acid, alkali resistant operating pressure 12 (MPa)
Operating temperature 35 (c) filter accuracy of 0.0001 molecular weight of 1 (10000)
Aperture 4 (mu m) flux of 400 (L/H) longitudinal strength of 12 (MPa)
Specification 45
Import of Dow BW30-400IG important information
In the preparation of the membrane system to put into operation, in order to prevent water flow through large or hydraulic impact and destruction of membrane components, the right to reverse osmosis system is very important. Follow the correct start-up procedures to ensure that the operating parameters of the system meet the design specifications, and thus make the water quality and electrical conductivity of the system meet the requirements. Prior to the start of the RO system, the system should be debugged, component filled, instrument calibrated and other system detected. Please refer to the applicable technical literature section 6-2 system operation management for more information.
BW30-400IG guide to the operation of Dow
In order to avoid the damage of the membrane element, the pressure or flow should be avoided in the process of starting, stopping, cleaning and other processes. In the start-up process, we propose to move from the stop state to the running state as follows:
• imports of Dow membrane BW30-400IG membrane components should gradually increase the water pressure, boost to the normal operation of the state should be no less than 30-60 seconds.
• imports of U.S. Dow BW30-400IG membrane components water flow rate should be gradually increased, the flow rate increased to the specified value of time shall not be less than 15-20 seconds.
• imports of the Dow Dow membrane BW30-400IG system within first hours after the start of the product should not let go of water.
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Imports of Dow BW30-400IG general information
• imports of Dow membrane BW30-400IG components once wetted, that should always remain moist.
• imports of U.S. Dow BW30-400IG film, if not strictly comply with the design guidelines and operating limits in the technical bulletin, limited warranty will be invalid.
• imports of Dow BW30-400IG in the system during shutdown, transportation, storage, in order to prevent the growth of microorganisms, we recommend that the membrane components immersed in the preservation of liquid. Standard preservation solution containing 1.5% wt% Sodium Bisulfite (food grade).
• imports of Dow membrane BW30-400IG components to be used at least 6 hours after the use of formaldehyde disinfection. If the use of formaldehyde in 6 hours, may lead to loss of flux.
• imports of the U.S. Dow BW30-400IG film on the chlorine (hypochlorite) in the short term there is a certain resistance to attack, but continuous exposure will destroy the membrane, and therefore should be avoided.
• imports of Dow BW30-400IG customers should be fully responsible for the impact of incompatible chemicals and lubricants on components. The use of incompatible drugs will lead to failure of limited quality assurance.
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Imports of the United States Dow membrane BW30-400IG note: always avoid the water side of the product to produce back pressure.
product
Effective area ft2 (M2)
Inlet channel width (MIL)
PD (m3/d)
Stable desalting rate (%)
8 inch plain brackish water film
BW30-365
365 (34)
Thirty-four
9500 (36)
Ninety-nine point five
BW30-400
400 (37)
Twenty-eight
10500 (40)
Ninety-nine point five
BW30-400/34i
400 (37)
Thirty-four
10500 (40)
Ninety-nine point five
BW30-440i
440 (41)
Twenty-eight
11.500 (43)
Ninety-nine point five
8 inch anti pollution brackish water film
BW30-365-FR
365 (34)
Thirty-four
9500 (36)
Ninety-nine point five
BW30-400-FR
400 (37)
Twenty-eight
10500 (40)
Ninety-nine point five
BW30-400/34i-FR
400 (37)
Thirty-four
10500 (40)
Ninety-nine point five
8 inch low pressure brackish water film
BW30LE-400
400 (37)
Twenty-eight
11.500 (44)
Ninety-nine point three
BW30LE-440i
440 (41)
Twenty-eight
12650 (48)
Ninety-nine point three
BW30-LE440
440 (41)
Twenty-eight
11500 (44)
99,0
BW30XLE-440
440 (41)
Twenty-eight
12700 (48)
Ninety-nine
4 inch plain brackish water film
Effective area ft2 (M2)
Operating pressure
PD (m3/d)
Stable desalting rate (%)
BW30HRLE-4040
78 (7.2)
10 kg
3000 (11.4)
Ninety-nine point three
BW30-4040
78 (7.2)
15 kg
2400 (9.1)
Ninety-nine point five
8 inch seawater desalination film
SW30HRLE-400
400 (37)
1200psi (83bai)
7500 (28)
Ninety-nine point seven fiveSW30HRLE-400I
400 (37)
1200psi (83bai)
7500 (28)
Ninety-nine point seven five
SW30XLE-400I
400 (37)
1200psi (83bai)
9000 (34)
Ninety-nine point seven zero
SW30HR-380
380 (35)
800psi (55bai)
6000 (23)
Ninety-nine point seven zero
4 inch seawater desalination film
SW30-4040
85 (7.9)
800psi (55bai)
1950 (7.4)
Ninety-nine point four
SW30HRLE-4040
80 (7.4)
1600 (6.1)
Ninety-nine point seven five
Dow thermal disinfection membrane
HSRO-4040-FF
90 (8.4)
150psi (10.3bai)
1900 (7.2)
Ninety-nine point five
HSRO-390-FF
390 (36)
150psi (10.3bai)
9000 (34)
Ninety-nine point five
RO-4040-FF
85 (7.9)
2400 (9.1)
Ninety-nine