Description
1. Overview of Pneumatic High-Pressure Control Valve
VTON’s pneumatic high-pressure control valves combine PSL or 3810L series actuators with high-pressure valve bodies to deliver unmatched performance in extreme conditions. These valves address challenges like short service life, stem fracture, and liner detachment through innovative cage-type throttling, which minimizes cavitation and erosion.
Key Features:
- Cage-type throttling for distributed pressure drops, reducing wear and tear.
- Integrated electric actuators with servo amplifiers for precise control using 4-20mA or 1-5V signals.
- Suitable for high-viscosity fluids with suspended solids or particulates, preventing coking, bonding, and clogging.
- Compact design with sensitive action, simple connections, and high flow capacity.
2. Technical Parameters
- Nominal Diameter: DN20-DN300
- Nominal Pressure: 1.6MPa-45MPa
- Allowable Pressure Drop: ≤ Nominal Pressure
- Flow Coefficient (Kv):
- Single Seat: 6.9-1250
- Cage: 6.3-1300
- Applicable Media: Water, oils, gases
- Environment Temperature: -25℃ to +70℃
- Environment Humidity: ≤ 95%
- Rated Stroke (mm): 16, 25, 40, 60, 100
- Input Signal: 4-20mA or 1-5V DC
- Output Signal: 4-20mA DC
- Flow Characteristics: Equal Percentage
- Explosion-Proof Mark: ExdⅡBT4 (ExdⅡBT6 optional)
- Valve Core Type: Single Seat, Cage
- Seal Packing: V-shaped PTFE, Graphite
- Body Materials: Stainless Steel, Carbon Steel, Cast Iron
- Voltage: 220V
- Protective Level: IP65
3. Material Specifications
| Component | Material |
|---|---|
| Valve Body | Stainless Steel, Carbon Steel |
| Valve Cage | Stainless Steel |
| Valve Core | Stainless Steel |
| Valve Stem | Stainless Steel |
| Gaskets | PTFE/Graphite Composite |
| Valve Cover | Carbon Steel, Stainless Steel |
| Packing | PTFE/Graphite |
| Packing Gland | Stainless Steel, Carbon Steel |
| Bolts | Stainless Steel |
4. Performance Indicators
| Item | Value |
|---|---|
| Basic Error (%) | ±2.5 (3810L), ±1.0 (PSL) |
| Backlash (%) | ±2.0 (3810L), ±1.0 (PSL) |
| Dead Zone (%) | 1.0 |
| Leakage Rate (L/h) | 0.01% × Valve Rated Capacity |
| Rated Stroke Deviation (%) | ≤2.5 |
| Adjustable Range (R) | 30:1 |
