Electric actuated butterfly valves offer precise, remote control of liquids, gases, and air in industrial and commercial systems. This guide helps buyers pick the right valve for automation, installation style, and durability. The top five picks below suit automation-focused buyers: plant engineers seeking reliable actuation, maintenance teams prioritizing flange or lug designs, and project managers needing compact, space-saving configurations.
Summary of selected products:
| Product | |||||
|---|---|---|---|---|---|
| UNOX Butterfly Valve DN80 (3″) 110V AC Electric Actuator Lug Type | Lug | 110V AC | AISI304 stainless steel | GGG40.3 body | Industrial, modular systems |
| UNOX Butterfly Valve DN50 (2″) 110V AC Electric Actuator Wafer Type | Wafer | 110V AC | AISI304 stainless steel or Iron (option) | GGG40.3 body | Compact automation, limited spaces |
| TNEHOD Compact Electric Actuated Butterfly Valve – 2 Inch | Wafer | 24V DC | Stainless steel disc | Cast iron body | High-precision flow in 2″ lines |
| UNOX Butterfly Valve DN80 (3″) 24V DC Electric Actuator Wafer Type | Wafer | 24V DC | Iron (disc) or stainless steel | GGG40.3 body | Durable, compact automation |
| UNOX Butterfly Valve DN150 (6″) 24V DC Electric Actuator Lug Type | Lug | 24V DC | Iron | GGG40.3 body | Heavy-duty, larger-diameter lines |
Below are detailed product sections to help compare fit, installation, and operation across common use cases.
UNOX DN80 3″ Lug Type Electric Actuated Valve
AUTOMATED PRECISION CONTROL – A 110V AC electric actuator enables fast, repeatable opening and closing with minimal operator effort. Best for automated process lines that require remote regulation of water, air, or gas.
DISC AND BODY DURABILITY – AISI304 stainless steel disc offers corrosion resistance for harsh fluids, while the GGG40.3 body provides structural strength for industrial settings.
INSTALLATION FLEXIBILITY – Lug type provides easy alignment between flanges and supports partial shutoffs without disconnecting the entire system. Choose this for modular pipelines where maintenance at isolated sections is needed.
Who it’s best for: plant engineers needing robust corrosion resistance with interchangeability in modular layouts. Limitation: lug designs can be bulkier than wafer types, impacting space in tight installations.
UNOX DN50 2″ Wafer Type 110V Actuated Valve
AUTOMATED & CONSISTENT FLOW CONTROL – 110V AC actuator enables quick, precise operation for liquids, gas, or air in controlled environments. Wafer design minimizes overall footprint while providing reliable clamping between flanges.
DISC OPTIONS FOR DURABILITY – Stainless steel AISI304 disc adds corrosion resistance; iron disc offers higher mechanical strength for demanding service. Both options are designed for long-term life in variable conditions.
INSTALLATION STYLE – Wafer type design simplifies initial installation and future maintenance with a compact footprint.
Who it’s best for: spaces-constrained automated systems requiring strong durability. Limitation: wafer style may require precise flange alignment and compatible gasket selection.
TNEHOD 2″ Electric Actuated Wafer Valve
HIGH-QUALITY CONSTRUCTION – Cast iron body with stainless steel disc and EPDM seat provides durability for heavy-duty applications. Best for demanding flows where budget-friendly, sturdy design is required.
ACTUATOR RELIABILITY – Aluminum alloy actuator offers dependable control, suitable for rugged environments. Paired with a 24V DC drive for safety and energy efficiency.
FLOW CONTROL PRECISION – Double-acting actuator enables smooth operation across a range of fluids. Choose this when precise throttling and quick shutoff are priorities.
Who it’s best for: projects needing solid mechanical strength at a reasonable price, with a compact footprint. Limitation: cast iron bodies can be heavier than alternatives.
UNOX DN80 3″ Wafer Type 24V DC Actuated Valve
MAXIMUM DURABILITY – Wafer design with either iron or stainless steel disc, housed in a GGG40.3 body for long-term industrial use. Best for reliable operation in automation projects needing space efficiency.
LOW-VOLTAGE CONTROL PRECISION – 24V DC actuator provides energy-efficient, precise flow control suitable for compact automation systems and mobile setups.
SEALING RELIABILITY – EPDM gasket ensures leak-free performance across -10ºC to 110ºC media temperatures and under pressure.
Who it’s best for: installers prioritizing energy efficiency and compact footprints in automation lines. Limitation: 24V DC systems require compatible control electronics and wiring.
UNOX DN150 6″ Lug Type 24V DC Actuated Valve
PRECISE FLOW REGULATION – Lug type with electric actuator enables precise control of water, gas, or steam in larger pipelines. The lug design supports isolation without full system shutdown.
RELIABLE LUG SUPPORT – Bolted lug configuration provides secure pipe-end support and straightforward installation for large-diameter lines.
FLEXIBLE INDUSTRIAL APPLICATIONS – Suitable for HVAC, chemical plants, power generation, and shipbuilding, handling various media efficiently.
Who it’s best for: projects requiring robust performance on large-diameter lines and sectional isolation. Limitation: larger size increases space and weight considerations on installation.
Buying Guide
What actuation voltage should I choose?
Common options are 110V AC and 24V DC. 110V AC offers strong, universal utility in industrial automation with readily available power, while 24V DC is safer for compact or mobile setups and can improve energy efficiency.
Wafer vs Lug vs Flange designs: which is right?
Wafer valves save space and are ideal for tight installations with compatible flanges. Lug valves support isolation of sections without system shutdown, useful in modular plants. Flanged or lug connections impact maintenance and alignment requirements.
What disc material suits my media?
Stainless steel discs (AISI304) excel in corrosion resistance, while iron discs offer higher mechanical strength for rugged environments. Consider the media and temperature range when selecting.
Is actuator voltage safety a concern?
24V DC actuators are generally safer in mobile or confined spaces but require compatible control electronics. 110V AC actuators deliver strong performance in fixed installations with standard industrial power.
What about seating and sealing?
EPDM gaskets provide broad chemical compatibility and good temperature tolerance (-10ºC to 110ºC). Verify compatibility with the specific fluid and temperature range in your system.
Maintenance and installation considerations
Modular systems benefit from lug designs for isolation without full shutdown. Wafer styles are preferred when space is at a premium and flange compatibility is ensured. Regular inspection of seals, actuator connections, and wiring is recommended for reliable operation over time.
Frequently Asked Questions
Q: Do electric actuated butterfly valves require special control systems?
A: They typically integrate with standard automation controllers, PLCs, or motor drivers compatible with the actuator’s voltage and interface.
Q: Are these valves suitable for hot water or steam?
A: Many are designed for water and air; check temperature ratings and gasket materials for media compatibility before use with steam or hot fluids.
Q: Can I retrofit an existing pipeline with these valves?
A: Yes, with proper flange or lug compatibility and correct pipe sizing. Confirm flange standards and bolt patterns first.
Q: Which is more durable: wafer or lug in harsh environments?
A: Durability depends on body material and operating conditions. Lug designs offer isolation advantages; wafer designs save space but require precise flange alignment.
Q: Do these valves support remote monitoring?
A: Many 110V and 24V actuators support remote control and feedback via standard automation networks; verify with the specific model’s integration options.