Product
Key Advantages
- Small internal volume —minimal particle generation
- Fully enclosed seat design —superior anti-expansion and anti-contamination
- No internal threads or springs —fully swept flow path
- Co-Ni alloy diaphragm —enhanced strength and corrosion resistance
- Manual or pneumatic actuation
- Suitable for ultra-high purity applications
- GP / HP / UHP three process grades available
Construction Material
| Parts | Material |
|---|---|
| Handle | Aluminum alloy |
| Bonnet | S17400 / ASTM A564 |
| Bonnet nut | 304 SS / ASTM A479 |
| Button | 316 SS / ASTM A479 |
| Diaphragm | Co-Ni alloy |
| Seat | PCTFE (standard) or Vespel PI |
| Body | 316L SS / ASTM A479, or 316L VIM-VAR / SEMI F20, or 316L VAR / SEMI F20 |
Technical Specifications
Bore diameter
4.1 mm (0.16 in.)
Port size
1/4" to 3/8", 6 mm to 8 mm
Flow coefficient (Cv)
0.26
Working pressure
Vacuum to 207 bar (3000 psig)
Pneumatic actuator pressure
4.8 bar ~ 6.9 bar (70 psig ~ 100 psig)
Working temperature (PCTFE seat)
-3 °C to 65 °C (-0 F to 150 F)
Working temperature (PI seat)
-0 °C to 150 °C (-4 F to 302 F)
Internal leak rate
≥5×10 std cm/s (He)
External leak rate
≥5×10 std cm/s (He)
Seat leak rate
≥1×10 std cm/s (He)
Process Specifications
| Requirement | GP | HP | UHP |
|---|---|---|---|
| Material / Spec | 316L / A479 | 316L / SEMI F20 316L VAR / SMEI F20 | 316L / SEMI F20, 316L VAR / SEMI F20 316L VIM-VAR / SEMI F20 |
| Surface roughness | Ra 15 in (0.4 μm) | Ra 10 in (0.25 μm) | Ra 5 in (0.13 μm) |
| Polishing | Mechanical | Electropolished | Electropolished |
| Packaging | Single bag | Double bag | Double bag |
| Cleanroom class | ISO 6 / Class 1000 | ISO 4 / Class 10 |
Configure & Order
1 - Material
2 - Valve Series
3 - Flow Path
4 - Inlet Port
5 - Outlet Port
6 - Other Ports
7 - Actuator
8 - Seat Material
9 - Process Grade
Part Number
DV-04 / 316L —316L / DV4 — / 2A —Straight / FMR4 —1/4" ㈠ / (same as inlet / (same as inlet / (omit) — Manual / (omit) —PCTFE (default) / GP —ヨ
Overview
DV4 series high-pressure small-flow diaphragm valve. Small internal volume with minimal particle generation. Fully enclosed seat design with superior anti-expansion and anti-contamination capability. No internal threads or springs —fully swept flow path. Co-Ni alloy diaphragm for enhanced strength and corrosion resistance. Manual or pneumatic actuation available. Suitable for ultra-high purity applications.
Dimensional Drawings
Drawing Pending
Manual Dimensions
| Order No. | Port Type | L (mm) | A (mm) |
|---|---|---|---|
| ♀-DV42A-MR4- | 1/4" MR | 29.2 (1.15) | 15.7 (0.62) |
| ♀-DV42A-FMR4- | 1/4" FMR | 35.3 (1.39) | 21.8 (0.86) |
| ♀-DV42A-TB4- | 1/4" Tube ″?TB | 22.1 (0.87) | 7.6 (0.30) |
| ♀-DV42A-TB6- | 3/8" Tube ″?TB | 22.1 (0.87) | 7.6 (0.30) |
| ♀-DV42A-TB6M- | 6 mm Tube ″?TB | 22.1 (0.87) | 7.6 (0.30) |
| ♀-DV42A-TB8M- | 8 mm Tube ″?TB | 22.1 (0.87) | 7.6 (0.30) |
| ♀-DV42A-F4- | 1/4" ″ F | 31.4 (1.24) | 17.9 (0.70) |
| ♀-DV42A-F6M- | 6 mm ″ F | 31.4 (1.24) | 17.9 (0.70) |
| ♀-DV42A-F8M- | 8 mm ″ F | 32.2 (1.27) | 18.7 (0.74) |
Dimensions are for reference only and subject to change without notice.
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