Features and Strengths:
Examples of use:
1. Top-Bellows
| Symbol | Description |
| B1.5 | Top-Bellows, 1.5 folds |
| B2.5 | Top-Bellows, 2.5 folds |
| B4.0 | Top-Bellows, 1.5 folds + Middle Bellows, 2.5 folds |
| B5.0 | Top-Bellows, 1.5 folds + Middle Bellows, 3.5 folds |
| B6.0 | Top-Bellows, 2.5 folds + Middle Bellows, 3.5 folds |
2. Top-Bellows Size
| Symbol | Description |
| 20 | 20 mm Diameter, only for MD-type Sealing Lips |
3. Suction Lip
| Symbol | Description |
| MD20 | MD-type Sealing Lip, 20 mm Dia. |
4. Lip Material
| Symbol | Description |
| N6 | Nitrile (NBR), 60° Hardness |
| S3 | Silicone, 30° Hardness |
| S5 | Silicone, 50° Hardness |
| W3 | White Silicone, 30° Hardness |
| W5 | White Silicone, 50° Hardness |
| W3(FDA) | White Silicone, 30° Hardness (FDA) |
| W5(FDA) | White Silicone, 50° Hardness (FDA) |
| U6 | Urethane, 60° Hardness |
5. Stopper
| Symbol | Description |
| D | D-type |
6. Disc Filter
| Symbol | Description |
| Blank | No Vacuum Filter |
| F2 | Vacuum Filter, 200 mesh |
6. Fitting
| Symbol | Description |
| 18F | G1/8 Female |
| 14F | G1/4 Female |
| 18M | G1/8 Male |
| 14M | G1/4 Male |
| 38M | G3/8 Male |
1. Recommended Lifting Maximum Force
| Part Number | Volume | Lifting Force (↑), Kg | ||
| MD-type lip | (cm³) | -20 kPa | -60 kPa | -90 kPa |
| B1.5/20-MD22 | 3.29 | 0.71 | 1.61 | 2.20 |
| B2.5/20-MD22 | 3.57 | 0.71 | 1.61 | 2.20 |
| B4.0/20-MD22 | 4.49 | 0.71 | 1.61 | 2.20 |
| B5.0/20-MD22 | 4.78 | 0.71 | 1.61 | 2.20 |
| B6.0/20-MD22 | 5.26 | 0.71 | 1.61 | 2.20 |
2. Material Specifications
| Material | Hardness Shore (°) | Color | Temperature (℃) |
| NBR/Nitrile – N6 | 60 | Blue | -20 ~ 110 |
| Silicone – S3 | 30 | Translucent White | -70 ~ 200 |
| Silicone – S5 | 50 | Red | -70 ~ 200 |
| White Silicone – W3 | 30 | Translucent White | -70 ~ 200 |
| White Silicone – W5 | 50 | Translucent White | -70 ~ 200 |
| White Silicone – W3(FDA) | 30 | Translucent White | -70 ~ 200 |
| White Silicone – W5(FDA) | 50 | Translucent White | -70 ~ 200 |
| Urethane – U6 | 60 | Dark Grey | 0 ~ 100 |
3. Material Resistance
| Description | Wear Resistance | Oil | Weather/Ozone | Alcohol | Acid |
| NBR/Nitrile | Excellent | Excellent | Fair | Good | Fair |
| Silicone | Good | Poor | Excellent | Good | Poor |
| White Silicone | Good | Poor | Excellent | Good | Poor |
| White Silicone /FDA | Good | Poor | Excellent | Good | Poor |
| Urethane | Excellent | Excellent | Excellent | Fair | Poor |
| B1.5, B4.0, B5.0 series |
| Unit: mm |
| Part Number | φ A | ST | H* | B* |
| B1.5/20-MD22 | 22 | 6.1 | 31.1 | 40.1 |
| B4.0/20-MD22 | 22 | 6.1 | 41.9 | 50.9 |
| B5.0/20-MD22 | 22 | 6.1 | 46.9 | 55.9 |
| * Dimension “H” and “B”: Measured with 1/4 male fitting – Available Fitting Size: 1/8″, 1/4″, 3/8″ Male & 1/8″, 1/4″ Female, |
| B2.5, B6.0 series |
| Unit: mm |
| Part Number | φ A | ST | H* | B* |
| B2.5/20-MD22 | 22 | 6.1 | 39.1 | 48.1 |
| B6.0/20-MD22 | 22 | 6.1 | 54.9 | 63.9 |
| * Dimension “H” and “B”: Measured with 1/4 male fitting – Available Fitting Size:1/8″, 1/4″, 3/8″ Male & 1/8″, 1/4″ Female, |
1. Top-Bellows
| Part Number | Description |
| TB1.5/20 | 1.5 Folds for MD20-type Sealing Lips |
| TB2.5/20 | 2.5 Folds for MD20-type Sealing Lips |
2. Middle-Bellows
| Part Number | Description |
| MB2.5/20 | 2.5 Folds for MD20-type Sealing Lips |
| MB3.5/20 | 3.5 Folds for MD20-type Sealing Lips |
3. Stoppers
| Part Number | Description |
| MS20-D | D-type, for MD20-type Sealing Lips |
4. Vacuum Filters
| Part Number | Description |
| VTFE20 | Filter, 200 mesh, 20 mm Top & Middle Bellows |
5. Suction Lips
| Part Number | Description |
| MD20-N6 | MD-type, 20mm Sealing Lip, Nitrile(NBR), 60° Hardness |
| MD20-S3 | MD-type, 20mm Sealing Lip, Silicone, 30° Hardness |
| MD20-S5 | MD-type, 20mm Sealing Lip, Silicone, 50° Hardness |
| MD20-W3 | MD-type, 20mm Sealing Lip, White Silicone, 30° Hardness |
| MD20-W5 | MD-type, 20mm Sealing Lip, White Silicone, 50° Hardness |
| MD20-W3(FDA) | MD-type, 20mm Sealing Lip, White Silicone, 30° Hardness (FDA) |
| MD20-U6 | MD-type, 20mm Sealing Lip, Urethane, 60° Hardness |
6. Fittings
| Part Number | Description |
| 350-003-1101 | G1/8 Female, for 20 mm Top & Middle Bellows |
| 350-003-1501 | G1/4 Female, for 20 mm Top & Middle Bellows |
| 350-003-1201 | G1/8 Male, for 20 mm Top & Middle Bellows |
| 350-003-1301 | G1/4 Male, for 20 mm Top & Middle Bellows |
| 350-003-1401 | G3/8 Male, for 20 mm Top & Middle Bellows |
