The vast majority of membrane components on the market are applicable to the pH range of feed solution 2-11. However, many pharmaceutical / biochemical / food industrial applications require production under harsh conditions of alkali.
FFM Inc membrane has super stability and meets the application requirements of high and low pH value, high temperature (up to 158 ° f or 70 ° C) and organic media in the market.
It is suitable for stable operation in the pH range of 2-14.
Suitable for applications requiring severe chemical cleaning (CIP).
It is suitable for recovering high-temperature alkali cleaning liquid. The recovered cleaning liquid can be reused directly, which solves the problem of waste liquid discharge and reduces the production cost.
Membrane Chemistry | Special composite membrane | Interception accuracy （Dalton） | 4K | structure | Coil type sanitary grade belt grid / FRP | |
Specification parameters | (31mil) ft2 (㎡) | (46mil) ft2 (㎡) | (62mil) ft2 (㎡) | (80mil) ft2 (㎡) | (100mil) ft2 (㎡) | (135mil) ft2 (㎡) |
FFM-U2540GBL-4K | 34 (3.1) | 23 (2.1) | 16 (1.4) | 11 (1.0) | -- | -- |
FFM-U3838L-4K | 72 (6.7) | 58 (5.4) | 45 (4.2) | -- | -- | -- |
FFM-U4040GBL-4K | 90 (8.3) | 75 (6.9) | 53 (4.9) | 45 (4.2) | -- | -- |
FFM-U8038L-4K | 358 (33.2) | 276 (25.6) | 215 (20.0) | -- | -- | -- |
FFM-U8040GL-4K | 370 (34.3) | 276 (25.6) | 215 (20.0) | 189 (17.5) | -- | -- |
FFM-U8338L-4K | 400 (37.1) | 320 (29.7) | 250 (23.2) | 210 (19.5) | ||
For alkali resistant membrane parts, see the following table for typical alkali solutions applied (molecular weight above 1000)
solution | concentration |
NaOH | 2-20 % |
KOH | 2-10 % |
OPERATION PARAMETERS
Recommended operating pressure：
140-360 psi (10.0-25.0bar)
Maximum operating pressure：
435psi (30.0bar)
Operating temperature range：
41-131° F (5-55℃)
Cleaning temperature range：
104-122° F (40-50℃)
PH range of continuous operation：
8.0-14.0（25℃)
On line cleaning pH range:
8.0-14.0（25℃)
Design pressure drop of single membrane element：
Runner 31mil: 12-15 psi (0.8-1.0 bar)
Runner 46mil: 15-20 psi (1.0-1.4 bar)
Other Runner：15-25 psi (1.0-1.7 bar)
The vast majority of membrane components on the market are applicable to the pH range of feed solution 2-11. However, many pharmaceutical / biochemical / food industrial applications require production under harsh conditions of alkali.
FFM Inc membrane has super stability and meets the application requirements of high and low pH value, high temperature (up to 158 ° f or 70 ° C) and organic media in the market.
It is suitable for stable operation in the pH range of 2-14.
Suitable for applications requiring severe chemical cleaning (CIP).
It is suitable for recovering high-temperature alkali cleaning liquid. The recovered cleaning liquid can be reused directly, which solves the problem of waste liquid discharge and reduces the production cost.
Membrane Chemistry | Special composite membrane | Interception accuracy （Dalton） | 4K | structure | Coil type sanitary grade belt grid / FRP | |
Specification parameters | (31mil) ft2 (㎡) | (46mil) ft2 (㎡) | (62mil) ft2 (㎡) | (80mil) ft2 (㎡) | (100mil) ft2 (㎡) | (135mil) ft2 (㎡) |
FFM-U2540GBL-4K | 34 (3.1) | 23 (2.1) | 16 (1.4) | 11 (1.0) | -- | -- |
FFM-U3838L-4K | 72 (6.7) | 58 (5.4) | 45 (4.2) | -- | -- | -- |
FFM-U4040GBL-4K | 90 (8.3) | 75 (6.9) | 53 (4.9) | 45 (4.2) | -- | -- |
FFM-U8038L-4K | 358 (33.2) | 276 (25.6) | 215 (20.0) | -- | -- | -- |
FFM-U8040GL-4K | 370 (34.3) | 276 (25.6) | 215 (20.0) | 189 (17.5) | -- | -- |
FFM-U8338L-4K | 400 (37.1) | 320 (29.7) | 250 (23.2) | 210 (19.5) | ||
For alkali resistant membrane parts, see the following table for typical alkali solutions applied (molecular weight above 1000)
solution | concentration |
NaOH | 2-20 % |
KOH | 2-10 % |
OPERATION PARAMETERS
Recommended operating pressure：
140-360 psi (10.0-25.0bar)
Maximum operating pressure：
435psi (30.0bar)
Operating temperature range：
41-131° F (5-55℃)
Cleaning temperature range：
104-122° F (40-50℃)
PH range of continuous operation：
8.0-14.0（25℃)
On line cleaning pH range:
8.0-14.0（25℃)
Design pressure drop of single membrane element：
Runner 31mil: 12-15 psi (0.8-1.0 bar)
Runner 46mil: 15-20 psi (1.0-1.4 bar)
Other Runner：15-25 psi (1.0-1.7 bar)
