AWK butterfly valve DN150 (6")
The DN150 (6") FL for controlling the flow of liquids in medium diameter pipes, it stands out for its robustness and reliability.
The valve features a body made of GG-GJL gray cast iron , known for its excellent mechanical resistance and ability to withstand heavy stress, even in industrial environments. Its flanges at both ends are designed according to the ANSI standard, which ensures a safe and standardized connection with other equipment or pipelines. The nominal size of the valve is 150 mm (6 inches) , making it suitable for medium liquid flow applications.
The main component is the internal disk, which rotates perpendicular to the flow of the liquid, blocking it or regulating its intensity. The butterfly disc is driven by a C36000 bronze stem, which ensures high corrosion resistance, a crucial factor when working in humid environments or in contact with aggressive liquids.
Butterfly valves are designed to provide rapid opening and closing operation, with 90° rotation of the disc. Thanks to the OS&Y configuration, the stem moves outside the valve body, allowing easy access to the thread and simplifying maintenance. The cast iron body and metal disc give the valve sufficient mechanical resistance to withstand high pressures, while maintaining a relatively compact and lightweight structure.
The operation of the AVK DN150 butterfly valve is simple: by turning the manual handwheel, the disc moves from a fully open to fully closed position in a few seconds, thus regulating the flow. It is particularly useful in situations where frequent regulation or rapid flow control is needed, such as in water distribution networks or wastewater treatment plants.
It is possible to combine the valve with electric, pneumatic or hydraulic actuators for system automation. This accessory becomes essential in systems where remote control is required or where direct access to the valve is difficult. Additionally, pressure or flow sensors can be integrated to monitor system performance in real time.
The flow rate of the fluid and the pressure within the system can be optimized using formulas such as the Darcy-Weisbach , which takes into account the internal diameter, the length of the pipe, the flow velocity and the friction coefficient of the fluid. For valves like this, it is important to ensure that operating conditions do not exceed the rated specifications of the DN150, especially in terms of maximum allowable pressure.
Maintenance of the DN150 butterfly valve requires periodic inspection of the stem and seals, which may wear over time. Thanks to the OS&Y system, the stem is easily accessible for lubrication or replacement of parts. In a used unit, it is essential to check that the stem is still in good condition, and that the disc moves without excessive friction or leaks.
A butterfly valve like the AVK DN150 , if used, can represent an excellent purchasing opportunity if you verify that the main components are intact and well preserved. In particular, it is necessary to check:
Butterfly valves such as the AVK DN150 are widely used in water treatment, the chemical industry, water distribution networks and many other industrial sectors. Choosing to purchase a used valve like this can result in significant savings without significant compromises on performance, especially if it has been properly maintained.
Buying a used valve can be a smart choice, especially when you are certain of the quality and robustness of the product.
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