Product
Key Advantages
- Very small internal volume —minimal particle generation
- Fully enclosed seat —superior antixpansion and antiontamination
- No internal threads or springs —fully swept flow path
- Coi alloy diaphragm for enhanced strength and corrosion resistance
- Manual or pneumatic actuation
- 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 | Coi alloy |
| Seat | PCTFE (standard) or PFA |
| Body | 316L SS / ASTM A479, or 316L VAR / SEMI F20, or 316L VIMAR / 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)
0.3
Working pressure
Vacuum to 17.2 bar (250 psig)
Pneumatic actuator pressure
4.2—.2 bar (60—0 psig)
Working temp. (PCTFE seat)
-3 °C to 65 °C (-0 F to 150 F)
Working temp. (PFA seat)
-3 °C to 150 °C (-0 F to 302 F)
Internal leak rate (He)
≥5×10 std cm/s
External leak rate (He)
≥5×10 std cm/s
Seat leak rate (He)
≥1×10 std cm/s
Process Specifications
| Requirement | GP | HP | UHP |
|---|---|---|---|
| Material / Spec | 316L / A479 | 316L / SEMI F20 316L VAR / SEMI F20 | 316L / SEMI F20 316L VAR / SEMI F20 316L VIMAR / 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 - Body 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-09 / 316L / DV1 —Lowressure Smalllow / 2A —Straight / FMR4 —1/4" female faceeal / Same as inlet / Same as inlet / (omit) —Manual / (omit) —PCTFE / GP
Overview
DV1 series lowressure smalllow diaphragm valve. Minimal internal volume and fully enclosed seat design prevent particle generation. No internal threads or springs ensure a fully swept flow path. Coi alloy diaphragm provides long service life. Available in GP, HP and UHP process grades.
Dimensional Drawings
Drawing Pending
Manual Dimensions
| Order No. | Port Type | L (mm) | A (mm) |
|---|---|---|---|
| ♀-DV12A-MR4- | 1/4" Integral Male Faceeal | 29.2 (1.15) | 15.7 (0.62) |
| ♀-DV12A-FMR4- | 1/4" Female Faceeal | 35.3 (1.39) | 21.8 (0.86) |
| ♀-DV12A-TB4- | 1/4" Tube Butt Weld | 22.1 (0.87) | 7.6 (0.30) |
| ♀-DV12A-TB6- | 3/8" Tube Butt Weld | 22.1 (0.87) | 7.6 (0.30) |
| ♀-DV12A-TB6M- | 6 mm Tube Butt Weld | 22.1 (0.87) | 7.6 (0.30) |
| ♀-DV12A-TB8M- | 8 mm Tube Butt Weld | 22.1 (0.87) | 7.6 (0.30) |
| ♀-DV12A-F4- | 1/4" Compression | 31.4 (1.24) | 17.9 (0.70) |
| ♀-DV12A-F6M- | 6 mm Compression | 31.4 (1.24) | 17.9 (0.70) |
| ♀-DV12A-F8M- | 8 mm Compression | 32.2 (1.27) | 18.7 (0.74) |
Dimensions are for reference only and subject to change without notice.
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