Description
1. Overview of Electric Hard-Seal Butterfly Valve
VTON electric hard-seal butterfly valves are engineered for industrial pipelines requiring high performance and durability. The three-eccentric sealing structure minimizes wear and ensures tight sealing even in extreme conditions. With advanced materials and precise manufacturing, these valves are ideal for regulating flow and isolating media in water, gas, and oil systems.
Applications:
- Industries: Metallurgy, power generation, petrochemicals, water supply, and municipal construction.
- Media: Suitable for water, air, natural gas, oil, and mildly corrosive fluids.
2. Features
- Three-Eccentric Sealing: Ensures minimal wear and increasingly tight sealing over time.
- Dual Sealing Options: Combines metal hard sealing and elastic sealing for reliable performance across a wide temperature range.
- Durable Construction: Cobalt-based hard alloy on the sealing surface provides excellent wear resistance and extended service life.
- Optimized Flow: Large-sized butterfly plates with quilted frame structures reduce flow resistance and enhance strength.
- Bi-Directional Sealing: Allows installation in any flow direction and spatial position without restriction.
- Flexible Drive Options: Multi-position installation (90° or 180° rotation) for enhanced user convenience.
3. Technical Parameters
- Nominal Diameter (DN): 50-2000mm
- Nominal Pressure (PN): 0.6, 1.0, 1.6, 2.5 MPa
- Seal Test Pressure (MPa): 0.66, 1.1, 1.76, 2.75
- Strength Test Pressure (MPa): 0.9, 1.5, 2.4, 3.75
- Operating Temperature:
- Carbon Steel: -29°C to 425°C
- Stainless Steel: -40°C to 650°C
- Applicable Media: Water, air, natural gas, oil, and mildly corrosive fluids
- Leakage Rate: Complies with GB/T13927-92 standards
- Drive Modes: Worm gear, electric, pneumatic, hydraulic
4. Material Specifications
| Component | Material Options |
|---|---|
| Body | WCB, alloy steel, stainless steel, QT450-10 |
| Disc Plate | WCB, alloy steel, stainless steel, QT450-10 |
| Shaft | 2Cr13 stainless steel, alloy steel |
| Seal Ring | Stainless steel ring |
| Packing | Flexible graphite |
