You should be able to operate and properly maintain any motorized butterfly valve or valve actuator you install. You'll be able to get the most out of your investment with this.
Dissimilar to a commonplace butterfly valve, the plate of the butterfly valve stretches out past the substance of the valve body. The disc's seating surface is not on the valve body in this type of valve; rather, it is on a separate seating surface called the seat or seal ring.
A flange or seal ring, which can be made of forged or threaded metals, is typically the seating surface. Although the seal ring can serve as the disc's seating surface, it is typically not considered a pressure boundary component. When the valve is working together, it seals against the flanges instead.
Each of the parallel planar faces of the valve body has an annular groove. The face is sealed by an O-ring or gasket in the annular groove. The gasket or O-ring's outer extremities are larger than the valve faces' inner extremities. This makes it possible to install the valve at a reasonable distance from the equipment that is next to it.
The amount of disc travel directly affects flow rate.A valve with 30 mm of stem movement, for instance, can achieve a full travel flow rate of 20 m3/s.
It is essential to select the appropriate butterfly valve size. The appropriate size will absorb up to half of the total pressure drop in the system. A pressure surge may occur if the valve is too small. Internal valve components may be damaged if the valve is too big.
There are numerous variations of the well-known butterfly valve. It could be a valve with a reverse action or a direct action. It can be used for throttling in addition to its primary function of opening and closing.
Additionally, the valve has a one-of-a-kind body design. It can be made of exotic metals or cast iron. Typically, it is attached to a bonnet with bolts. An elastomeric seat keeps the disc safe. This seat can be pressed in or bonded.
It takes some research to determine which butterfly valve supplier is best suited to your system. Based on the requirements of the system and the requirements of the application, it is essential to select the appropriate size and type of valve.
You need to know the difference between a linear characteristic and an equal percentage characteristic, regardless of whether you have a motorized butterfly valve with actuator. For the same pass area, each will give you a different "valve opening."
The process by which a valve's Cv increases by a certain percentage for every ten percent of valve travel is known as an equal percentage characteristic. It has a slight advantage over the linear version and is similar to an oversized standard valve.
On the other hand, the inherently linear characteristic indicates the same valve opening and flow capacity without any system effects. For systems with a pressure differential of more than 25% at maximum flow rates, this is the best option.
A three-port valve that diverts the same amount of water through each port while maintaining a constant flowrate is a good illustration of this. The actual characteristic of the installed flow can be graphed by a computer program.
Motorized butterfly valves can be used to control the flow of liquid or gas, depending on the media being handled. They can also be used to completely halt the flow. Additionally, water and wastewater treatment applications make use of these valves. They are small, lightweight, and require very little upkeep.
Cast iron, ductile iron, or stainless steel are all options for the cast iron body butterfly valves. The operating environment, the media to be handled, and the valve's lifespan are all taken into consideration when selecting materials. Different materials are also used to make the valve disc. Aluminum and bronze, ductile/epoxy coated, stainless steel, and ductile/nickel plated are examples of these.
Disc materials are used to improve valve performance and seal efficiency. The valve's pressure rating and flow rate are also affected by the various materials. Metal seats can be used in high-temperature applications. Elastomeric seats can also be used in applications that aren't as demanding. The material of the seat also varies with the media that is handled. PTFE is the most frequently used material for butterfly valve seats. It is more resistant to corrosion than other materials and has a higher compatibility.
Every valve manufactured at AFC Valve has undergone hydrostatic testing, which is a guarantee. For seat and shell tests, the pressure to be tested is typically 1.5 *. Because of the tests, we are confident that every valve, including Pressure regulating and flow control valve, can function in the water system. We adhered to EN12266 as the standard. The UL/FM test procedure is followed when testing products that meet UL and FM standards.
The valves, like keystone high performance butterfly valves and others, are controlled throughout the manufacturing process using a standard procedure. AFC's quality management system oversees every stage of production, from castings to coating machining, packaging assembly, testing, and packaging. A bad product can be the result of controlling processes.
The nozzle check valve design and some valves is based on thirty years of experience and a lot of feedback from workers in the field. Our valve is dependable in the field and easy to use. Various standards serve as the foundation for all valve designs. It's possible that the gate valve can meet EN, AS, or UL requirements. Double eccentric butterfly valves conform to EN and AWWA standards. Each product must adhere to the specifications of its own manufacturer.
China has unquestionably the most extensive and cost-effective supply chain. The water valve's most expensive component, is the casting, just like cast iron flange butterfly valve. Castings of the highest quality are produced in China at reasonable prices. The price and quality can be evaluated. AFC valve is the most ideal decision to track down the harmony among quality and cost.
Copyright © 2022 Suzhou Alpine Flow Control Co., Ltd Privacy policy Terms and Conditions
EN 
ES
PT
SV
DE
TR
FR
