Venn Co.
Venn VD-1H type vacuum adjustment valve

Manufacturer: Venn Co., Ltd.
Model: VD-1H
Features
- When the negative pressure drops below the set value, the valve opens.
- As a result, it draws in air and prevents piping and equipment from becoming vacuumed.
- In addition, when installed on a steam pipe with a silencer, it prevents water from being drawn in after the steam stops.
Specifications
| Product code | VD1H-F | VD1H-D |
|---|---|---|
| Valve type | Vacuum regulating valve | |
| Nominal diameter | 15-50 (1/2-2) | |
| Applicable fluid | Steam / air | |
| Fluid temperature | 200 ℃ or less | |
| Applicable pressure | 1.0MPa or less | |
| Set pressure range | 1: -0.5 to -22kPa, 2: -22 to -49kPa 3: -49–76kPa, 4: -76-82kPa | |
| End connection | JIS R screw | |
| Material | C3604 or CAC406 (Metal Touch) | SUS (metal touch) |
| Mounting posture | Vertical mounting with the entrance side down | |











