Contact Platform Support
Help CenterIndustrial Electric Butterfly Valve With Manual Override and Mill Test Report
Product Spotlights
Related Products
-
Factory Direct Electric Butterfly Valve Compliant With GB/T3036 StandardNegotiableMOQ: 1 Unit -
Electric Butterfly Valve for Chemical Processing, Corrosion-Resistant LiningNegotiableMOQ: 1 Unit
-
GB/T3036 Standard Electric Butterfly Valve With IP67 Waterproof EnclosureNegotiableMOQ: 1 Unit
-
Electric Butterfly Valve With 2-Year Warranty and Technical SupportNegotiableMOQ: 1 Unit
-
Compact Electric Butterfly Valve for HVAC and Water Treatment SystemsNegotiableMOQ: 1 Unit
As a specialized manufacturer with over eight years of industry expertise, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our high-performance Industrial Electric Butterfly Valve with Manual Override. Engineered for reliability in demanding applications, this valve combines automated electric actuation with a fail-safe manual operation feature, ensuring uninterrupted process control. Each unit is backed by a comprehensive Mill Test Report, providing full traceability and verification of material integrity, giving you confidence in every installation.
Our valve is designed to deliver precise flow control, robust sealing, and long service life in systems handling water, air, gases, and mild corrosive fluids. The integrated manual override is a critical safety and maintenance feature, allowing for immediate valve operation during power outages or for manual system checks without disconnecting the actuator. This dual-operation capability makes it an ideal choice for industries where process continuity is paramount.
Core Technical Specifications & Advantages:
- Dual Operation Design: Seamlessly switch between automated electric control and manual handwheel operation. The manual override is easily accessible and does not require special tools.
- Superior Sealing Performance: The valve utilizes a resilient seat (EPDM, NBR, or PTFE options) that ensures bubble-tight shut-off, minimizing leakage and enhancing system efficiency.
- Robust Construction: The disc is typically made from corrosion-resistant stainless steel, while the body is available in cast iron, ductile iron, or stainless steel to match specific pressure and media requirements.
- Versatile Actuator Options: The electric actuator can be supplied for simple on/off service or with modulating control (4-20mA, 0-10V signals) for precise flow regulation. Standard voltages include 24V, 110V, 220V, and 380V AC/DC.
- Enhanced Safety & Reliability: The manual override acts as a fail-safe, ensuring the valve can be operated during emergencies or power failures, preventing costly downtime.
- Simplified Installation & Maintenance: The compact wafer or lug design allows for easy installation between flanges, reducing space and weight compared to traditional gate valves.
The table below outlines key standard parameters. Customizations are available to meet your specific project needs.
| Parameter | Specification |
| Size Range | DN50 (2") to DN1200 (48") |
| Pressure Rating | PN10, PN16, ANSI 150 (Higher ratings optional) |
| Body Material | Cast Iron, Ductile Iron, Stainless Steel (SS304, SS316) |
| Disc Material | Stainless Steel (Standard), Other alloys available |
| Seat Material | EPDM (Water, Air), NBR (Oil), PTFE (Chemicals) |
| Operation Temperature | Depends on seat: EPDM up to 120°C, PTFE up to 200°C |
| Actuator Control Signal | On/Off (Switch), Modulating (4-20mA, 0-10V) |
| Manual Override | Integrated Handwheel or Lever (Standard) |
What This Means for Your Operations:
- Process Assurance: The manual override guarantees you are never locked out of controlling your system, protecting against unexpected stops.
- Quality Confidence: The accompanying Mill Test Report provides documented proof of material chemical composition and mechanical properties, simplifying quality audits and compliance.
- Reduced Lifetime Cost: Durable materials and design minimize maintenance needs and replacement frequency, offering a favorable total cost of ownership.
- Integration Ready: The electric actuator is compatible with standard PLC and DCS systems, facilitating seamless integration into your automated control networks.
Trust is earned through consistent performance and verifiable quality. Since our establishment in 2016, Shanghai Zhibang Valve has built a reputation by exporting over a million dollars worth of industrial valves annually to diverse markets across North and South America, Europe, Asia, Africa, and Oceania. Our operations are underpinned by an ISO9001 Quality Management System, ensuring every valve, including this Electric Butterfly Valve with Manual Override, is produced under stringent quality controls. The included Mill Test Report is not just a document; it's our commitment to transparency and your assurance of receiving a product built to perform reliably. For a valve solution that combines automated efficiency with manual reliability and full material traceability, contact us today to discuss your specifications.
Frequently Asked Questions (FAQ):
Q1: What is the primary advantage of having a manual override on an electric butterfly valve?
A: The manual override provides a critical fail-safe mechanism. It allows operators to open or close the valve manually during power failures, system maintenance, or emergency situations, ensuring process continuity and safety without relying on electrical power.
Q2: Can this valve be used for throttling or flow control, or is it only for on/off service?
A: It is highly versatile. While standard models are configured for on/off operation, we can supply valves with modulating electric actuators that accept control signals (like 4-20mA) to provide precise proportional flow control, making them suitable for applications requiring variable flow rates.
Q3: What does the Mill Test Report include, and why is it important?
A: The Mill Test Report (MTR) is a certificate from the material manufacturer detailing the chemical analysis and mechanical properties (tensile strength, yield strength, etc.) of the metal used for critical components like the body and disc. It is crucial for quality assurance, traceability, and compliance with project specifications, especially in regulated industries.
Q4: What are the standard seat material options, and how do I choose?
A: Common options are EPDM for general water and air services, NBR for oils and fuels, and PTFE for aggressive chemicals and higher temperatures. Selection depends on the fluid media, temperature, and pressure. Our team can advise based on your specific application details.
Q5: Is the manual override feature always engaged, or does it require switching?
A: Typically, the manual override (handwheel or lever) is designed to be disengaged during normal electric operation to prevent accidental movement. A clutch or declutch mechanism allows you to easily engage the manual mode when needed, and it automatically re-engages the electric drive when power is restored and switched back.
Q6: What is the lead time for an order of these valves?
A: Lead time varies based on order quantity, size, and material specifications. Standard configurations typically have shorter lead times. We provide reliable production schedules upon receipt of your detailed inquiry to ensure timely delivery to your project.
Q7: Can you provide valves with different end connections besides wafer type?
A: Absolutely. While wafer style is common for its compactness, we also offer lug-style valves (for dead-end service) and double-flanged end connections. The choice depends on your piping system design and installation requirements.
Q8: Do you offer support for actuator configuration and control wiring?
A: Yes, we provide comprehensive technical support. This includes helping select the appropriate actuator torque, voltage, control signal, and accessories (limit switches, positioners). Wiring diagrams and installation manuals are supplied with each unit to facilitate correct setup.
Send Inquiry to This Supplier
You May Also Like
-
Marine Butterfly Valve for Seawater Cooling Systems, GB/T3036 Design, EPDM Seal, 316L DiscNegotiableMOQ: 1 Unit
-
DN50 to DN600 Electric Butterfly Valve for Flow Control, 220V/380V AC MotorNegotiableMOQ: 1 Unit
-
Automated GB/T3036 Butterfly Valve for Bulk Material Handling SystemsNegotiableMOQ: 1 Unit
-
GB/T3036 Electric Butterfly Valve With 304 Stainless Steel Disc and PTFE SeatNegotiableMOQ: 1 Unit
-
316L Stainless Steel Disc Marine Butterfly Valve, GB/T3036 Compliant for Seawater Corrosion ResistanceNegotiableMOQ: 1 Unit
-
GB/T3036 Marine Butterfly Valve for Seawater Systems, 316L Stainless Steel Disc & EPDM Seal, DN50-DN600NegotiableMOQ: 1 Unit
-
PN16 Pressure Rated Marine Butterfly Valve, GB/T3036 Standard for Seawater Ballast and Bilge LinesNegotiableMOQ: 1 Unit
-
Cast Iron Body Marine Butterfly Valve for Seawater, GB/T3036 Compliant, DN50 to DN600 SizesNegotiableMOQ: 1 Unit
-
Marine Butterfly Valve for Seawater Intake and Discharge Applications, GB/T3036 CompliantNegotiableMOQ: 1 Unit
-
GB/T3036 Standard Marine Butterfly Valve, PN0.6-1.6MPa Pressure Rating for Seawater PipingNegotiableMOQ: 1 Unit
