QT-D-SEW Motorized Stainless Steel EPDM Butterfly Valve
QT-D-SEW Motorized Stainless Steel EPDM Butterfly Valve
The Motorized Stainless Steel EPDM Butterfly Valve combines a stainless-steel body and EPDM seat for corrosion resistance and tight sealing, ensuring precise automated flow control, longer service life, and verified reliability under API 598 and EN 12266-1 standards.
| Size Range | DN50–DN600 (2″–24″) |
| Working Pressure Range: | PN10–PN16 (150 PSI–232 PSI) |
| Working Temperature Range: | –10°C to +120°C |
| Body Material: | CF8 / CF8M Stainless Steel |
| Connection Type: | Wafer Type (PN10/PN16/ANSI150) |
| Applicable Medium: | Water, Air, Oil, Weak Acid & Alkali |
| Actuator Type: | Electric Motorized Actuator |
| Voltage Options | AC110V, AC220V, AC380V, DC24V |
| Design Standard | ISO 5211, MSS SP-67 |
| Testing Standard | API 598, EN 12266-1 |
| 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 makes the motorized stainless steel EPDM butterfly valve reliable for industrial and water system use?
• The electric actuated butterfly valve combines a stainless-steel body with an EPDM rubber seat for corrosion resistance and long-term sealing.
• Its automated flow control design ensures smooth operation and precise regulation in HVAC and water systems.
• The EPDM seat offers flexibility and chemical tolerance in humid or mildly corrosive environments.
• Each valve is tested to API 598 and EN 12266-1 for leak-free performance.
2. How does the electric actuator butterfly valve enhance automation and control accuracy?
• The motor-driven butterfly valve enables remote operation and precise modulation for energy-efficient control.
• Supports 4–20 mA or 0–10 V signals for integration with automation systems.
• The ISO 5211 mounting pad fits multiple actuator brands for flexible upgrades.
• The electric control valve consumes less power and responds faster than pneumatic types.
3. What installation conditions are crucial for achieving optimal performance with a motorized butterfly valve?
• Ensure correct alignment between PN10/PN16/ANSI150 flanges to avoid actuator torque issues.
• The EPDM-seated valve should work within –10 °C to +120 °C and PN10–PN16 pressure range.
• Match actuator wiring to the correct voltage (AC110 V, AC220 V, AC380 V, DC24 V).
• Avoid use in abrasive or slurry media that could damage the seat.
4. How can maintenance extend the life of a motorized stainless butterfly valve in continuous operation?
• Inspect the EPDM seat regularly for wear or cracks.
• Verify that limit switches and torque protection function correctly.
• Keep the valve stem and disc clean to maintain smooth rotation.
• Apply proper flange torque to prevent body distortion.