Product
Key Advantages
- Visual open/close status indicator window on handle
- Lift-and-rotate handle mechanism —prevents accidental operation
- Optional LOTO (-LOTO) lockout/tagout hasp
- Handle rotation angle: 180 standard, 90 optional
- He leak rate ≥1×10?Pam/s (internal and external)
- Ra ≥0.13 μm electropolished internal surfaces
- UCR and Tube Stub port options
- Optional PI (Polyimide) or PFA seat materials
Construction Material
| Parts | Material |
|---|---|
| Body | 316L SS / 316L VIM-VAR (optional) |
| Diaphragm | UNS R30003 (Co-Ni alloy) |
| Seat gasket | PCTFE (PI / PFA optional) |
| Handle | Aluminum alloy 6063 |
| Surface finish | EP electropolished, Ra ≥0.13 μm |
Technical Specifications
Working pressure
Vacuum to 300 PSI (20.7 bar)
Burst pressure
900 PSI
Flow coefficient (Cv)
0.5
Working temperature
-0 to 70 °C
Internal leak rate
≥1×10?Pam/s (He)
External leak rate
≥1×10?Pam/s (He)
Surface finish
Ra ≥0.13 μm (EP)
Handle rotation
180 standard / 90 optional
Port sizes
1/4" / 3/8" / 1/2" UCR or Tube Stub
Configure & Order
Flow Path
Port Connection
Port Size
Port End Type
Body Material
Handle Color
Options
Part Number
DV-03 / I —Straight / 7 —UCR Face Seal / 4 —1/4" / M —Integral Male / SS —316L / R —Red / —Standard
Overview
The DVH series adds a visual status indicator window to the standard hard-metal diaphragm valve handle, allowing operators to confirm open/closed state at a glance without touching the valve. The handle requires a lift-and-rotate action to open, preventing accidental operation. Optional LOTO (Lockout/Tagout) hasp for safety-critical isolation points. Handle rotation angle is 180 standard, 90 optional. Low-pressure only (Vac—00 PSI).
Dimensional Drawings
Drawing Pending
Manual Dimensions
| Port Type | L (mm) | H (mm) | h (mm) | D (mm) |
|---|---|---|---|---|
| 74M | 1/4" Integral Male | 91 | 11.2 | 47.4 |
| 74MS | 1/4" Male Swivel | 91 | 11.2 | 47.4 |
| 74F | 1/4" Female | 91 | 11.2 | 47.4 |
| T4 | 1/4" Tube Stub | 91 | 11.2 | 47.4 |
| T6 | 3/8" Tube Stub | 91 | 11.2 | 47.4 |
| T8 | 1/2" Tube Stub | 91 | 11.2 | 47.4 |
| 78M | 1/2" Integral Male | 91 | 11.2 | 47.4 |
| 78MS | 1/2" Male Swivel | 91 | 11.2 | 47.4 |
| 78F | 1/2" Female | 91 | 11.2 | 47.4 |
Dimensions are for reference only and subject to change without notice.
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