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Element Vessel
A Varied Line-Up of Pressure-Resistant Vessels for Membrane Elements.
Outline
Spiral type-membrane modules consist of elements and vessels (pressure-resistant containers) used by inserting one to six elements depending on applications. Nitto Denko provides various types of vessels for different applications.
Features
[For general desalination]
Mid-high pressure and low pressure vessels are available. The end plate fixing method consists a “stud bolt” method for 8 inch application, “VICTAULIC joint” (medium to high pressure) and “snap ring” (low pressure) methods for 4 inch applications.
[For seawater desalination]
Pressure-resistance of 6.9MPa with the stud bolt method with white UV coating.
[For ultrapure water]
A low elution type FRP vessel with higher inner flatness and smoothness.
[For food processing]
A unique space-efficient U-turn flow type made of SUS316.
Mid-high pressure and low pressure vessels are available. The end plate fixing method consists a “stud bolt” method for 8 inch application, “VICTAULIC joint” (medium to high pressure) and “snap ring” (low pressure) methods for 4 inch applications.
[For seawater desalination]
Pressure-resistance of 6.9MPa with the stud bolt method with white UV coating.
[For ultrapure water]
A low elution type FRP vessel with higher inner flatness and smoothness.
[For food processing]
A unique space-efficient U-turn flow type made of SUS316.
| Product No. | S2 Vessel | 4FRP42V-1～6 | 4FRP70B-1～6 | (U-turn vessel) | |
|---|---|---|---|---|---|
| Correspondence element | S2 element | S4 Element | |||
| End plate fixation method | Snap ring | VICTAULIC (R) Joint *2 | Stud Bolts | High pressure clamp | |
| Evaluation conditions | Max. operating pressure [MPa] |
6.9 | 3.4 | 6.9 | 4.4 |
| Max. operating temperature [°C] |
45 | 90 | |||
| Measure- ment conditions |
External cylinder | FRP+SUS | FRP | SUS | |
| End plate | SUS | FRP+PVC | SUS | ||
| Features | - | Dead space-less/SUS316 Make Inside/Outside buffing | |||
| Usage | Concentration of saccharide | - | ○ | ◎ | ○ |
| Concentration of beverages (fruit juice, tea coffee, etc.) |
○ | ◎ | ○ | ||
| Decolorization of seasoning |
(-) | (-) | (-) | ||
| Separation, desalination, concentration of various liquid (dairy products, amino acid, saccharide, etc.) | (-) | (-) | ○ | ||
| Manufacturing sterile water for food and pharmaceuticals /medicines. |
(-) | ◎ | (-) | ||
| Product No. | 8FRP25UP-1～6 | 8FRP42B-1～6 | 8FRP70B-1～6 | 8FRP5RS-1～3 | |
|---|---|---|---|---|---|
| Corresponding element | S8 element | ||||
| End plate fixation method | Stud bolts | Retaining ring | |||
| Exposure limits | Max. operating pressure [MPa] | 2.5 | 4.1 | 6.9 | 0.5 |
| Max. operating temperature [°C] | 45 | 40 | |||
| Evaluation conditions | External cylinder | FRP | FW | ||
| End plate | FRP+PVC | ||||
| Features | Low dissolving type with smooth inner surface. White UV coating | Mid-pressure type | High-pressure type | For RS50-S8 (UF for turbid substance removal) | |
| Usage | Concentration of saccharide | ○ | (-) | ||
| Concentration of beverages (fruit juice, tea, coffee, etc.) |
○ | (-) | |||
| Decolorization of seasoning |
(-) | ◎ | (-) | ||
| Separation, desalination, concentration of various liquid (dairy products, amino acid, saccharide, etc.) |
○ | ○ | (-) | ||
| Manufacturing sterile water for food and pharmaceuticals /medicines. |
(-) | (-) | |||
