Venn Co.
Venn RD-4B type pressure reducing valve (for air / gas)
Manufacturer: Venn Co., Ltd.
Model: RD-4B type
Features
- It is a direct acting pressure reducing valve and uses to reduce the pressure of high-pressured gas.
Specifications
| Product code | RD4B-N |
|---|---|
| Nominal diameter | 15/20/25 (1/2/3/4/1) |
| Applicable fluid | Air / gas |
| Fluid temperature | 5-80 ℃ |
| Primary side applied pressure | 5.0MPa or less |
| Secondary adjustment pressure range | L: 0.5-1.0, M: 1.0-1.5, H: 1.5-2.0, S: 2.0-3.0MPa |
| Maximum decompression ratio | 10: 1 |
| Minimum differential pressure before and after the valve | 0.05MPa |
| Deadline boost | Set pressure x 10% or less |
| Allowable leakage amount | Nominal diameter 15:30 mL / min or less (standard state), nominal diameter 20: 40 mL / min or less (standard state), nominal diameter 25: 50 mL / min or less (standard state) |
| End connection | JIS 16, 20, 30, 40, 63K RF flange |
| Material body | S25C |
| Material Valve body | SUS |
| Material Valve seat | SUS |
| Material diaphragm | C5212P |
| Material disc | PCTFE |
| Mounting posture | Upright mounting on horizontal piping |
| Cv value | 0.4 |
| Mass (kg) | Nominal diameter 15: 22, Nominal diameter 20: 23, Nominal diameter 25: 24 |
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