Motorized Butterfly Valve DN65 (65A, 2½ Inch)

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Motorized Butterfly Valve DN65

The Belimo Motorized Butterfly Valve DN65 is engineered to deliver outstanding reliability, precise flow control, and long-term performance for HVAC and industrial applications. The valve is available with On/Off, Modulating, and Electronic Fail-Safe actuator options, allowing engineers to select the optimal control strategy for each installation.

Designed for ANSI Class 150 piping systems, the valve combines a heavy-duty cast iron body with either a cast iron or stainless steel disc, providing exceptional mechanical strength, corrosion resistance, and dependable operation under demanding service conditions.

Its advanced disc and resilient seat design ensure reliable shut-off over a wide operating pressure and temperature range. Under low-pressure or vacuum conditions, the resilient seat maintains excellent sealing performance, while at higher pressures it optimizes seat movement to extend valve life and reduce operating torque.

Belimo's intelligent actuator technology consumes up to 80% less energy than conventional electric actuators while delivering accurate positioning, dependable operation, and long service life.

Typical applications include:

• Chilled water systems
• Cooling tower systems
• Changeover systems
• Process control systems
• Air handling units (AHUs)
• District cooling plants
• Industrial HVAC installations
• Large commercial buildings

The Belimo butterfly valve range is available in sizes from DN25 to DN1200, with 2-way and 3-way configurations, spring-return, non-spring-return, Electronic Fail-Safe actuators, and both On/Off and modulating control options.

Key Advantages of Belimo Motorized Butterfly Valves

Belimo motorized butterfly valves are engineered to meet the requirements of both HVAC and industrial applications through standardized, grooved, and high-performance valve designs. Their advanced disc and resilient seat construction provides excellent shut-off performance while maintaining low operating torque throughout the valve's service life.

Belimo offers NEMA 2, NEMA 4, and NEMA 4X actuator enclosures to ensure reliable operation in a wide range of indoor and outdoor environments. Standard HD/HDU butterfly valves feature a bolted shaft design that separates the valve shaft from the body, improving controllability and simplifying maintenance. Stainless steel or nickel-plated discs are available as standard for enhanced corrosion resistance and long-term durability. Grooved butterfly valve models are also AWWA certified for potable water applications in the United States, providing additional assurance of quality and safety.

Available Sizes

Belimo motorized butterfly valves are available in sizes ranging from DN25 to DN1200, offering a comprehensive solution for commercial HVAC and industrial flow control applications. The product range includes 2-way and 3-way butterfly valves with On/Off, modulating, and Electronic Fail-Safe control options, as well as spring-return and non-spring-return actuators, allowing engineers to select the most suitable configuration for each system requirement.

The DN65 model is commonly referred to by several names in the HVAC industry, including Butterfly Valve DN65, Electric Butterfly Valve DN65, Motorized Butterfly Valve DN65, Butterfly Valve 65A, Butterfly Valve 2½ Inch, Electric Butterfly Valve 65A, Modulating Butterfly Valve DN65, and On/Off Butterfly Valve DN65. These terms are widely used interchangeably by engineers, contractors, and MEP consultants when specifying or selecting butterfly valves for HVAC systems.

Technical Support & Product Consultation

For detailed product information and technical assistance, please contact PGTECH, the official representative and distributor of Belimo Switzerland in Vietnam. Our experienced engineering team can provide expert guidance on the complete range of Belimo control valves, including globe control valves, butterfly control valves, ball valves, and HVAC automation solutions.

Email: info@pgtech.com.vn - Hotline: +84 962 875 986