Electric Ventilation Butterfly Valve

An Electric Ventilation Butterfly Valve is an automated quarter-turn flow control device,integrating a precision electric actuator with a rugged butterfly valve body,specifically engineered for regulating,isolating,and throttling low-pressure gaseous media in industrial ventilation,dust collection,and environmental protection systems.It achieves remote automatic control via 4-20mA signals,PLC,or DCS systems,delivering efficient,reliable,and precise airflow management for large-diameter ducts.

Key Design Features

Welded Steel Construction:Body and disc fabricated from carbon steel or stainless steel plates,offering lightweight yet robust structure,easy installation,and excellent resistance to thermal deformation.

Centerline Disc Design:Precision-machined centerline disc with large thermal expansion clearance,preventing seizure under high-temperature cycling and ensuring smooth operation.

Low-Torque Actuation:Optimized flow geometry minimizes operational resistance,requiring small electric actuators for efficient 90°rotation.

Non-Binding Internal Design:No internal connecting rods,bolts,or moving parts,eliminating wear points and ensuring exceptional reliability and long service life.

Versatile Electric Actuators:Available with standard,explosion-proof,or intelligent integrated actuators,supporting ON/OFF,modulating,and proportional control modes.

Bi-Directional&Flexible Installation:Full bi-directional flow capability allows horizontal,vertical,or angled mounting without performance degradation.

Technical Specifications

Size Range:DN50(2")to DN4000(160")

Pressure Rating:PN0.05~PN0.6 MPa(low-pressure ventilation service)

Temperature Range:-20°C to 600°C(depends on material and seal selection)

Actuator Power:380V/220V/110V AC,24V/110V DC

Control Signal:Switch type(ON/OFF)or modulating type(4-20mA)

Connection Type:Flanged(GB,ANSI,DIN)or wafer type

Leakage Class:Non-bubble tight(standard for ventilation,≤1%leakage)

Materials:Carbon steel(WCB),stainless steel(CF8,CF8M),with EPDM,NBR,silicone,or metal seals