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Electric Valve High-Temperature Butterfly Valve
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Electric Valve High-Temperature Butterfly Valve
- It combines the dual advantages of metal hard sealing and elastic sealing.
- It can be installed in any orientation without restrictions from medium flow direction or spatial limitations.
- Widely used in industrial pipelines (e.g., metallurgy, power, petroleum, chemical) with medium temperatures ≤425°C, it serves for flow regulation and fluid shut-off.
The electric hard-seal butterfly valve adopts a three-dimensional eccentric structure, with the disc made of soft-hard laminated metal discs. It combines the dual advantages of metal hard sealing and elastic sealing. Featuring unidirectional sealing functionality, it can be installed in any orientation without restrictions from medium flow direction or spatial limitations. Widely used in industrial pipelines (e.g., metallurgy, power, petroleum, chemical) with medium temperatures ≤425°C, it serves for flow regulation and fluid shut-off.
Product Features
- Metal seals are suitable for media containing slight particles or slurry.
- Operating temperature up to 425°C.
- Negligible friction during sealing, ensuring lower torque and enhanced sealing performance.
- Flange clamp connections compatible with multiple standards.
IV. Structure and Components
| Component | Material/Specification | Function |
| Body | Carbon steel, alloy steel, stainless steel | Pressure-bearing main body, fully corrosion-resistant, flange-connected to pipelines. |
| Disc | Carbon steel, alloy steel, stainless steel | Rotates to control medium flow, forming zero-leakage seals with seats. |
| Stem | Carbon steel, 304/316/316L stainless steel | Transmits driving force from the actuator; corrosion-resistant and torsion-resistant. |
| Seal Ring | Stainless steel | Elastic sealing structure, adapts to high temperatures and medium variations. |
| Actuator | Explosion-proof/Non-explosion-proof electric actuators | Supports on/off and modulating control, integrated with intelligent signal feedback. |
Technical Parameters
| Parameter Name | Parameter Value |
| Nominal Diameter (DN) | DN50~400mm (customizable) |
| Nominal Pressure (PN) | PN1.6, 2.5MPa |
| Temperature Range | ≤425°C |
| Applicable Media | Water, air, natural gas, oil products, weakly corrosive fluids |
| Connection Type | Clamp-style connection |
| Leakage Class | ANSI/FCI 70-2 Class VI (Zero Leakage) |
| Actuator Type | Switching (ON/OFF), Modulating (proportional control); optional explosion-proof certification (Ex d IIC T6). |
Application
Application Scope
Medium Types:
- Water, air, natural gas, oil products, and weakly corrosive fluids.
Application Fields:
- Chemical Industry: Transport systems for weakly corrosive media.
- Pharmaceutical/Food: Aseptic pipelines and high-purity fluid control.
- Environmental Engineering: Weakly acidic/alkaline wastewater treatment systems.
- Electroplating/Metallurgy: High-temperature gases and steam.
Installation Requirements
- Pipeline Cleaning: Remove welding slag and impurities before installation to avoid damaging the sealing surface 37.
- Alignment Calibration: Tighten flange bolts symmetrically to prevent valve body deformation 47.
- Flow Direction Marking: Align the valve body arrow with the medium flow direction (applicable only for single-seal designs; dual-seal designs may ignore this requirement).
- Actuator Positioning: Reserve operational space around the actuator and avoid exposing it to high-temperature areas to prevent damage to pneumatic components.
Package
Plywood case
Our Service
After-Sales Warranty
- Warranty Period: 12 months (excluding damage caused by accidental misuse or improper operation).
- Technical Support: Free installation guidance and troubleshooting services provided.
