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.
Technical Specifications
| 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 | |||||
Product Benefits & Features
1. Performance & Reliability
• The motorized stainless steel butterfly valve delivers precise torque and stable automatic flow control.
• The EPDM seat ensures tight sealing and zero leakage under varying temperatures and pressures.
• The electric actuator butterfly valve features a corrosion-resistant stainless-steel body for long service life.
• Tested to API 598 and EN 12266-1 standards for proven reliability.
2. Durability & Maintenance Efficiency
• The EPDM-lined butterfly valve offers excellent wear resistance and reduced maintenance needs.
• The streamlined disc design lowers torque, protecting the electric control valve from wear.
• Compact wafer-style structure allows quick installation in limited spaces.
• Modular actuator assembly enables fast part replacement and minimal downtime.
3. Application Versatility & Compatibility
• Ideal for water treatment, HVAC, oil, and chemical systems.
• The ISO 5211 mounting pad fits multiple actuator brands for automation use.
• Compatible with PN10/PN16/ANSI150 flanges for global interchangeability.
• Multiple voltage options (AC110V, AC220V, AC380V, DC24V) for diverse setups.
4. Energy Efficiency & Control Precision
• The electric butterfly valve saves energy versus pneumatic types.
• Supports modulating signals (4–20 mA / 0–10 V) for accurate flow control.
• Fast response prevents water hammer and pressure surges.
• Built-in limit switches and torque protection ensure safe, efficient automation.
Why Choose Fleyenda Valve Manufacturing
Product Stability
We use reinforced structures and precision sealing to ensure consistent performance under pressure and temperature changes.
Conpany&Product Certification
We have CE, RoHS, ISO, SIL, TUV, and IP68 waterproof certifications covering safety, quality, and environmental standards.
Projects Experience
Cooperated over 40 countries, we have experience in oil & gas, energy, water, chemicals, food & beverage, and automation.
Customization Capability
With 20 years experience, we turn complex working conditions into precise valve solutions with high speed and accuracy.
Aftersales Support
•We have technical team provides real-time video support to help customers resolve on-site issues quickly.
Customer Cases
Trusted by Shell plc, Petronas, Chevron, TotalEnergies, and Dupont in projects across 40+ countries.
Our Product Actual Export Pictures
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.