QT-D-SH Motorized Stainless Steel Hard-Seated Butterfly Valve
QT-D-SH Motorized Stainless Steel Hard-Seated Butterfly Valve
The Motorized Stainless Steel Hard-Seated Butterfly Valve features a metal-to-metal seal for zero leakage under high pressure and temperature, providing corrosion resistance, precise flow control, and long service life—proven by 100,000-cycle testing and API 609, API 598, CE certification.
| Size Range | DN50–DN1200 (2″–48″) |
| Working Pressure Range: | PN10–PN40 / Class 150–300 |
| Working Temperature Range: | −20°C to +450°C |
| Body Material: | CF8 / CF8M |
| Connection Type: | Flanged |
| Applicable Medium: | Steam, hot air, oil, gas, chemical media, high-temperature water |
| Actuator Type: | Electric actuator |
| Voltage Options | AC220V, AC380V, DC24V |
| Design Standard | API 609 / EN 593 |
| Testing Standard | API 598 / ISO 5208 |
| Fire-Safe Design | Optional per API 607 |
| Certification | CE / ROHS / ISO / SIL / TUV /IP68 Waterproof |
| Customization | Above Are Standard Parameter Samples. If You Have Specific Parameters And Materials, We Can Customize Them All. |
| Actuator Model | Standard Time/Torque | Optional Time/Torque | Rotation Angle Range | Actuator Weight | Power Supply | Optional Control Circuit |
|---|---|---|---|---|---|---|
| FLE-105 | 25S/50Nm | 4S/20Nm 10S/30Nm | 0-90° Adjustable | 2.2kg | DC24V AC24V AC110V AC220V AC380V | A type B type C type D type E type F type |
| FLE-110 | 25S/100Nm | 15S/50Nm | 5.1kg | |||
| FLE-116 | 25S/160Nm | 15S/80Nm | 5.1kg | |||
| FLE-120 | 25S/200Nm | 15S/100Nm | 7.5kg | |||
| FLE-140 | 25S/400Nm | 15S/200Nm | 7.5kg | |||
| FLE-160 | 25S/600Nm | 15S/300Nm | 8.1kg | |||
| FLE-1100 | 50S/1000Nm | 25S/500Nm | 12.7kg | |||
| FLE-1200 | 50S/2000Nm | 25S/1000Nm | 12.7kg | |||
| Type | ON/OFF, Regulating, Intelligent | |||||
| Insulation Resistance | 100MΩ/500VDC | |||||
| Dielectric Strength | 1500V AC 1min. | |||||
| Level of Protection | IP67 (IP68 optional) | |||||
| Installed Location | 360° Installation at any Angle | |||||
| Electrical Interface | 2-G1/2 Metal Fitting, the corresponding metal cable joints should be installed according to the selected cables | |||||
| Ambient temperature | -20°C to +60°C | |||||
| Optional Explosion Proof | Ex d II BT4 / CT4 / CT6 Gb | |||||
| Power-loss reset (fail-safe) function | Fail-open, Fail-closed or No-reset (factory-selectable) | |||||
| Optional functions | Overtorque protection, dehumidification heater, passive contact switch, operating handwheel | |||||
Certified Quality for Industrial Valve Applications
Fleyenda valves and electric actuators are built for stable performance, reliable operation, and long-term industrial use. With certified quality support, they are suitable for water treatment, chemical processing, automation, and industrial process control systems.
FAQs That 80% Users Interest
1.What operating conditions should I check before choosing a Motorized Stainless Steel Hard-Seated Butterfly Valve?
• Verify system pressure, temperature, and flow to ensure the electric hard-seated butterfly valve suits high-temperature service.
• Confirm the media type to match the stainless steel body and corrosion-resistant seat.
• Ensure the electric actuator valve power matches your automation setup.
• Check that the flange connection meets ASME or EN standards.
2. Why might a motorized metal-seated valve leak or fail to close completely?
• Solid particles may block full closure between disc and seat.
• Pipeline misalignment can deform the stainless steel butterfly valve body or disc.
• Worn or corroded sealing faces reduce tight shut-off in a metal-seated control valve.
• Incorrect actuator torque or limit switch calibration may leave the disc partially open.
3. How do I integrate a motor-operated butterfly valve into an automated control system?
• Align the actuator with the ISO 5211 interface for proper torque transfer.
• Connect control signals for modulating or on-off operation.
• Add feedback sensors to monitor the electric butterfly valve position via PLC or DCS.
• Choose actuator protection with IP65 or higher for harsh environments.
4.In which applications does a stainless steel motorized butterfly valve perform best?
• Suitable for high-pressure or high-temperature steam, oil, or gas systems.
• Ideal for abrasive or corrosive fluids in power, chemical, and refinery applications.
• Used in industrial automation for precise remote flow control.
• The hard-seat butterfly design maintains sealing where soft seats fail.