Electric flange centerline-biased butterfly valve
Product Core Advantages: This electric flange centerline-biased butterfly valve is an ideal equipment for flow regulation and medium cut-off in industrial pipeline systems. It adopts a centerline-biased structure design, which has superior sealing performance and smaller opening and closing torque compared to traditional butterfly valves, effectively reducing valve wear and extending service life; it is also equipped with a high-quality electric actuator to achieve remote intelligent control, eliminating the need for on-site manual operation, significantly enhancing the automation level and operational safety of industrial production, and can widely adapt to the transportation control requirements of various industrial media such as water, steam, oil, and gas.
Material Details:
Valve Body Material: Selects ductile iron (QT450-10) or carbon steel (WCB), ductile iron has high strength, high toughness, and good corrosion resistance, suitable for general industrial conditions; carbon steel has higher strength and excellent temperature and pressure resistance, capable of meeting the requirements of medium and high pressure, high-temperature industrial complex conditions.
Valve Plate Material: Uses stainless steel (304 or 316L), 304 stainless steel has strong resistance to common corrosive media, suitable for routine conditions; 316L stainless steel contains molybdenum, has more outstanding performance in resisting acids, alkalis, seawater, etc., suitable for chemical, marine engineering, etc. special corrosive conditions.
Sealing Material: Uses nitrile rubber (NBR) or ethylene propylene diene monomer rubber (EPDM), nitrile rubber has excellent oil resistance, suitable for oil products, hydraulic oil, etc.; EPDM has strong resistance to high and low temperatures, aging resistance, and chemical corrosion, can work stably within the temperature range of -40℃ - 150℃, suitable for water, steam, corrosive gases, etc.
Electric Actuator Shell: Made of aluminum alloy by die-casting, surface treated with anti-corrosion spraying, has good waterproof, dustproof, and impact resistance, protection level可达 IP67， suitable for outdoor， humid， dusty， etc. harsh working environments.
Technical Parameter Details：
Nominal Diameter： DN50 - DN600 (standard specifications， can be customized to DN800 - DN1200 large-diameter models).
Nominal Pressure： PN1.0MPa - PN2.5MPa (suitable for different pipeline pressure grades， custom PN4.0MPa models for high-pressure conditions).
Working Temperature： -40℃ - 150℃ (standard EPDM sealing)， special conditions can customize - 196℃ - 300℃ high-temperature and low-temperature sealing models.
Flow Characteristics： Approximately equal percentage flow characteristics， high regulation accuracy， can achieve precise control of medium flow.
Leakage Level： GB/T 13927-2008 Ⅳ level (soft seal)， excellent sealing performance， effectively prevents medium leakage， meets environmental protection and safety production requirements.
Electric Actuator Parameters：
Power Supply Voltage： AC220V/380V (standard)， DC24V (customizable).
Control Signal： 4-20mA DC (analog control， realizes flow proportional regulation) or switch control (realizes full opening / full cut-off of the valve).
Output Torque： 50N・m - 5000N・m (matched according to valve diameter and pressure to ensure stable valve opening and closing).
Protection Level： IP67， some models can be upgraded to IP68 (short-term immersion underwater).
Explosion-proof Level： Ex dⅡBT4/Ex dⅡCT6 (optional， suitable for flammable and explosive hazardous areas in chemical， oil and gas， etc.).
Connection Method： Flange connection， conforms to GB/T 9113， ANSI B16.5 and other domestic and international standards， installation is convenient， suitable for different standards of industrial pipeline systems.
