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DK56-WB Electric Cast Iron Wafer Butterfly Valve - Compact & Cost-Effective Isolation
Size Range: DN40-DN1200
Material:Cast Iron, WCB, SS304/316 etc.
Connection Standard: GB / ANSI / JIS /DIN
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DK56-LB-S Electric Stainless Steel Lug Butterfly Valve - Corrosion Resistant Dead-End Service
Size Range: DN40-DN1200
Material:Cast Iron, WCB, SS304/316 etc.
Connection Standard: GB / ANSI / JIS /DIN
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DK56-LB Electric Cast Iron Lug Butterfly Valve - Dead-End Service & Automated Isolation
Size Range: DN40-DN1200
Material:Cast Iron, WCB, SS304/316 etc.
Connection Standard: GB / ANSI / JIS /DIN
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DK56-FB-G Electric Stainless Steel Hard Seal Flange Butterfly Valve - High Temperature & Abrasion Resistant
Size Range: DN40-DN1200
Material:Cast Iron, WCB, SS304/316 etc.
Connection Standard: GB / ANSI / JIS /DIN
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DK56-DC Electric Cast Iron Fluorine-Lined Wafer Butterfly Valve - Compact Corrosion Control
Size Range: DN40-DN1200
Material:Cast Iron, WCB, SS304/316 etc.
Connection Standard: GB / ANSI / JIS /DIN
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QT-DK56-FB Electric Explosion-Proof Cast Steel Flange Butterfly Valve-High-Performance Coated/Lined
Size Range: DN40-DN1200
Material:Cast Iron, WCB, SS304/316 etc.
Connection Standard: GB / ANSI / JIS /DIN
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DK56-PB Electric UPVC Butterfly Valve for Pure Water and Chemical Control
Size Range: DN50-DN450
Material: UPVC, CPVC,PPH,PVDF
Connection Standard: GB / ANSI / JIS /DIN
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Electric Hard Seal Flanged Butterfly Valve for High-Integrity, High-Pressure Systems
Size Range: DN40-DN1200
Material:Cast Iron, WCB, SS304/316 etc.
Connection Standard: GB / ANSI / JIS /DIN
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Electric Hard Seal Wafer Butterfly Valve for High-Temperature and High-Pressure
Size Range: DN40-DN1200
Material:Cast Iron, WCB, SS304/316 etc.
Connection Standard: GB / ANSI / JIS /DIN
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Electric Sanitary Clamp Butterfly Valve for Aseptic Process Automation
Size Range: DN15-DN100
Material: SS304/SS316,SS304L/S316L
Connection:Butt-Weld / Tri-Clamp / Thread
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Electric Actuated Lug-Type High-Performance Butterfly Valve (Double Offset)
Size Range: DN40-DN1200
Material:Cast Iron, WCB, SS304/316 etc.
Connection Standard: GB / ANSI / JIS /DIN
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Electric Fluorine Lined Flanged Butterfly Valve for Aggressive Chemical Services
Size Range: DN40-DN1200
Material:Cast Iron, WCB, SS304/316 etc.
Connection Standard: GB / ANSI / JIS /DIN
What Are Electric Butterfly Valves?
DELCO electric butterfly valves provide industrial-grade, quarter-turn flow control designed to automate demanding pipeline systems. Driven by precision motorized actuators, these valves deliver leak-tight isolation and seamless PLC/DCS integration for reliable plant automation. To support both specialized engineering upgrades and comprehensive procurement lists, our complete portfolio features versatile connection types (wafer, lugged, flange, groove) and high-performance materials (plastic, fluorine-lined, hard-seated, sanitary) engineered to master any harsh, corrosive, or high-purity fluid challenge.
Explore the Complete DELCO Electric Butterfly Valve Series
Engineered for diverse industrial environments, our comprehensive range of motorized butterfly valves provides reliable automation and precise flow control. Whether your piping system requires strict sanitary standards, severe chemical resistance, or extreme temperature and pressure resilience, DELCO offers a tailored, performance-driven solution.

Electric Wafer Butterfly Valve
Designed for space-saving installation, this compact valve is sandwiched directly between pipe flanges. It provides a lightweight, cost-effective automation solution ideal for general water treatment and HVAC systems.

Electric Lugged Butterfly Valve
Featuring threaded metallic inserts for secure, bolt-through mounting, this valve allows for downstream pipeline maintenance without draining the entire system. It is the perfect automated choice for end-of-line service.

Electric Flanged Butterfly Valve
Built with integral flanged ends to withstand heavy-duty, high-pressure environments. This robust motorized valve ensures maximum stability and secure connections in large-diameter industrial pipelines.

Electric Sanitary Butterfly Valve
Manufactured from highly polished stainless steel with FDA-approved seals to meet strict hygiene standards. It delivers quick, sterile automated flow control for the food, beverage, and pharmaceutical industries.

Electric Plastic Butterfly Valve
A lightweight, corrosion-resistant automated valve crafted from durable UPVC, CPVC, or PP. It offers a highly cost-effective, non-scaling solution for agricultural irrigation, desalination, and basic chemical handling.

Electric Fluorine-lined Butterfly Valve
Fully lined with premium PTFE or PFA to provide absolute resistance against severe corrosive media. It is engineered for safe and reliable automated isolation in demanding chemical and petrochemical processing plants.

Electric Hard-Seated Butterfly Valve
Equipped with a rugged metal-to-metal seal designed to conquer extreme temperatures, high pressures, and abrasive fluids. This is the ultimate automated valve for steam lines, power generation, and metallurgy.

Electric Groove Butterfly Valve
Designed with grooved ends for rapid, weld-free installation and easy maintenance. It delivers highly reliable motorized control specifically tailored for fire protection systems, commercial HVAC, and municipal water networks.
Need Custom Actuation?
Beyond our standard series, we provide custom actuator sizing, mounting bracket manufacturing, and specialized control signals (Modbus, Profibus) tailored to your exact DCS requirements.
Download Full Catalog
Get comprehensive technical data sheets, CAD drawings, wiring diagrams, and torque charts for the entire electric butterfly valve family.
Electric Butterfly Valve Selection Guide
Skip the guesswork. Share these 8 key application parameters with our engineering team, and we will configure the exact sizing, material, and actuator integration for your project.
Valve Structure & Design
Specify the structural design (Concentric, Double Eccentric, or Triple Offset) based on your application's flow characteristics, friction tolerance, and operating cycle frequency.
Connection Type & Size
Define nominal pipe size (typically DN40-DN1200 / 1.5"-48") and standard body connections: Wafer, Lugged, Flange (ANSI/DIN/JIS), or Groove.
Body, Disc & Seat Materials
Select body/disc materials (Ductile Iron, WCB, SS316, UPVC) and seat liners (EPDM, NBR, PTFE, or Metal-to-Metal) strictly compatible with your process medium.
Operating Temperature
Provide working temperature ranges (-20°C to +425°C+) to determine if standard elastomer seats, high-temp fluorine-lined, or metal hard-seated configurations are required.
Pipeline Working Pressure
Specify system pressure ratings (PN10-PN64 / Class 150-300) to verify valve body rating and calculate the exact breakaway torque for accurate actuator sizing.
Actuator Operating Voltage
Select power supply specifications for your site control panel: DC24V, AC24V, AC110V, AC220V, or heavy-duty 3-Phase AC380V.
Control Method & Signal
Choose operational modes: On/Off type, Intelligent Modulating (4-20mA/0-10V control signal), fail-safe backup, or digital fieldbus integration (Modbus/DCS).
Final Review & Quote
Submit your configured parameters to our engineering team for a rapid technical review, CAD drawings, torque calculations, and customized pricing.
Why Choose DELCO Electric Butterfly Valves?
Advanced Motorized Control
Driven by heavy-duty intelligent actuators, our quarter-turn butterfly series ensures rapid actuation and precise flow modulation. These units are built for immediate compatibility with modern industrial automation setups, including PLC and advanced fieldbus architectures.
Large-Diameter Sealing Integrity
Utilizing streamlined discs and resilient seating materials, these valves minimize pressure drop while providing bubble-tight isolation. They are specifically optimized to safely manage massive fluid volumes in large-scale municipal, HVAC, and chemical networks.
Optimized Power Efficiency
Relying on motor-driven gearboxes that mechanically lock in place upon reaching the desired angle, our valves consume zero standby energy. This self-locking mechanism not only slashes electricity costs but also prevents disc fluttering under high fluid velocities.
Comprehensive Pipeline Adaptability
We manufacture fluid control solutions for any challenge. Whether your project requires plastic or fluorine-lined bodies for corrosives, hard-seated trims for extreme heat, or sanitary finishes for hygiene—securely mounted via wafer, lugged, flange, or groove formats—DELCO has you covered.
Rigorous Factory Validation
Quality is non-negotiable. As a direct manufacturer, we subject every completed valve-actuator package to strict hydrostatic pressure tests, pneumatic seal checks, and electronic stroke calibrations to certify zero defects prior to global shipment.
Expert Engineering & Sizing
Selecting the correct actuator torque for a butterfly valve is critical. Our dedicated technical team supports distributors and contractors with precise breakaway torque calculations, complete 3D models, and wiring schematics to guarantee flawless field installation.
Electric Butterfly Valve Applications
Reliable DELCO Electric Buttery Valves engineered for demanding industrial environments.
Why Partner with DELCO Valves
Driven by modern CNC precision, 100% pressure testing, and comprehensive international compliance, DELCO delivers high-performance automated flow control solutions engineered for demanding global infrastructure.
Frequently Asked Questions
Find expert answers to critical questions regarding actuator sizing, fail-safe operations, and DCS integration, or contact our engineering team directly for project-specific solutions.
Get Engineering Support & OEM Solutions
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Quick valve sizing recommendations
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ISO, CE, ATEX certified production
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Datasheets and 3D drawings available
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OEM branding & packaging services
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Material & sealing customization (PTFE, EPDM, metal)
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Explosion-proof & modulating actuator options



