OverviewD343H/D373H C95800 nickel aluminum bronze triple eccentric metal hard-seated butterfly valve is a high-performance worm gear butterfly valve specially designed for seawater, marine chemical and salt spray working conditions. The worm gear drive drives the disc to rotate 90 degrees to realize pipeline medium cut-off and flow regulation. The series includes two connection types: D343H flange type and D373H wafer type. The valve body and disc are integrally cast of C95800 nickel aluminum bronze, the stem is made of seawater-resistant Monel alloy, and the sealing pair adopts multi-layer metal hard sealing structure. Based on triple eccentric mechanical design, the disc separates from the seat instantly during opening with zero friction in full stroke. Benefiting from outstanding seawater erosion, pitting and marine microorganism corrosion resistance of C95800 bronze, the valve is rated PN16. It is widely used in marine pipeline systems including ship seawater circuits, offshore platforms, seawater desalination, coastal power plants and coastal desulfurization water treatment.

OverviewThe vacuum butterfly valve series is a precision control valve specially developed for negative pressure vacuum pipeline systems. It supports manual, electric, pneumatic and other driving modes. The driving mechanism drives the butterfly plate to rotate 90 degrees to realize accurate opening, closing and flow regulation of gas media in vacuum pipelines. Adopting standard flange and clamp connection structures, the valve is professionally designed for negative pressure working conditions below standard atmospheric pressure. Optimized with precise sealing structure and ultra-low leakage technology, it adapts to full-range negative pressure environments from low vacuum to high vacuum. The valve body has no internal connecting rods or dead corners, with structurally optimized tightness and stability to prevent negative pressure air inhalation, gas leakage and vacuum degree attenuation. Widely applied in vacuum coating, semiconductors, precision instruments, metallurgical vacuum treatment, environmental negative pressure dust removal, scientific research vacuum pipelines and other fields, it serves as the core supporting valve for stable operation of vacuum systems.

OverviewD341F46 cast steel flange lined fluorine butterfly valve is a valve that opens, closes, and regulates fluid channels by rotating a disc-shaped butterfly plate around its fixed shaft (valve stem). The axis of its valve stem deviates from the center of the butterfly plate sealing surface, and adopts a "single eccentricity" or more complex structural design, with asymmetric sides on both sides of the butterfly plate. The valve adopts a flange connection, which means that the valve body has standard flanges at both ends and is directly fastened to the pipeline flange through bolts. The surface of the butterfly plate and the inner cavity of the valve body are lined with fluoroplastic (such as F46, also known as perfluoroethylene propylene FEP) as the sealing surface and anti-corrosion layer, and the butterfly plate is used to rotate and press the fluorine lined valve seat to achieve sealing. This valve is driven by manual, electric, or pneumatic devices to rotate the valve stem by 90 ° or less, achieving reliable on/off and flow control for highly corrosive and other harsh media fluids.D341F46 cast steel flange lined fluorine butterfly valve product diagram

OverviewThe D81X sanitary butterfly valve is a sterile special control valve developed for clean fluid working conditions. Driven manually, the handle drives the butterfly plate to rotate 90 degrees to realize rapid opening, closing and cut-off control of media in clean pipelines. Adopting a standard sanitary quick-clamp connection structure, the valve is easy to disassemble and install with strong adaptability. The valve body is integrally made of 304 and 316L food-grade stainless steel, and the flow channel is polished with high-precision mirror finish, featuring smooth inner wall, no dead corners and no residual gaps. Equipped with food-grade special seals, the overall structure complies with GMP clean production standards and supports CIP online cleaning and SIP high-temperature sterilization processes. It is widely used in fluid pipeline systems with strict requirements for medium cleanliness and sterility in pharmaceutical, food and beverage, dairy, bioengineering, pure water, fine daily chemical and other industries.