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Pneumatic PVDF Butterfly Valve

The Pneumatic PVDF Butterfly Valve is a type of valve that controls the flow of fluids (liquids or gases) within a pipeline by adjusting the flow rate. The name of this valve is given by the way it operates, since it uses a disc or "butterfly" that rotates within the valve body to either allow fluid flow or restrict it.

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Company Profile

Qinhuangdao JeveTec Co., Ltd is a young and dynamic company.
Jevetec mainly provide electric actuators, pneumatic actuators, ball valve, butterfly valve, gate valve, check valve and other series products and control unit of IOT that exactly suit our customer's needs.
These valves are widely used in water treatment systems, home automation, HVAC system, smart irrigation system, wildfire emergency sprinkler system, recreational vehicle (RV), trailer home, sprinkler truck, fire truck, air compressor, washing machine, etc., wherever automatic remote fluid control is needed. Based on experienced expert team from Hebei Normal University Of Science & Technology .We offers solutions to ensure that your control system are exactly fit for your use.

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To be a leader in the automatic valve by providing enhanced services, relationship, and profitability.

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To provide quality products & service that exceed the expectations of our esteemed customers.

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To build long term relationships with our customers and clients and provide exceptional customer services by pursuing business through innovation and advanced technology.

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We believe in treating our customers with respect and faith. We grow through creativity, invention, and innovation. We integrate honesty, integrity and business ethics into all aspects of our business functioning.

Pneumatic PVDF 3 Way Ball Valve

Pneumatic PVDF 3 way ball valve is a type of valve that uses compressed air or gas to operate a ball-shaped closure element within the valve body. This closure element, often referred to as a "ball," normally has two shapes (T or L ), T shape ball has three bores,L shape ball have two bores through its center.

Pneumatic 3 Way Ball Valve

This pneumatic 3-way ball valve is a type of valve used to control the flow of fluids or gases in a piping system. The body of the valve is made from PPH,which exhibits excellent chemical resistance to a wide range of acids, bases, and solvents.

Air Actuated True Union Ball Valve

Air actuated true union ball valve is a type of valve that consist of the features of an air driven actuator and a true union ball valve. A true union ball valve is a type of valve that uses a spherical ball with a hole through it (the ball) to control the flow of fluid through a pipe or tubing.

1 Inch Air Actuated Three Way Ball Valve

1 inch air actuated three way ball valve is a type of control valve used in various industrial applications to control the flow of fluids. It consists of a valve body with three port with ball-shaped disc inside it.

Pneumatic Actuated Ball Valve

This pneumatic actuated ball valve is consist of a pneumatic actuator and a PPH double true union ball valve, The pneumatic actuator is similar like our handle, which can drive the ball in the middle of the valve to rotate 90° clockwise or anticlockwise, In doing so, the valve will be close or open accordingly.

Pneumatic Operated 3 Way Valve

A pneumatic operated 3-way valve is a type of industrial valve that is controlled by a pneumatic (air pressure) actuator and is designed to divert or mix the flow of fluids in a system.

Pneumatic PVDF Butterfly Valve

Pneumatic PVDF butterfly valve is a type of industrial valve used to control the flow of fluids, typically in applications where chemical resistance is essential. This pneumatic PVDF butterfly valve consist of a pneumatic actuator and a ready for actuator butterfly valve. Pneumatic actuators are devices that use compressed air to open and close the valve.

What is Pneumatic PVDF Butterfly Valve?

Pneumatic PVDF 3 Way Ball Valve is a three-way ball valve driven by compressed air and made of polyvinylidene fluoride (PVDF) as the main valve body material. It is used to achieve flow diversion, confluence or switching control of fluid in corrosive or high-purity fluid systems.

Benefits of Pneumatic PVDF Butterfly Valve

Corrosion resistance
The Pneumatic PVDF 3 Way Ball Valve body is made of polyvinylidene fluoride (PVDF) material, which can withstand sulfuric acid with a concentration of more than 60%, hydrochloric acid with a concentration of 30%, and most organic solvents for a long time. The water absorption rate of PVDF is less than 0.03%, and the temperature range can reach −40°C to +140°C, which is suitable for highly corrosive fluid conditions.

Three-way flow path design
This product is a T-type or L-type three-way structure, which can realize diversion, confluence or switching functions. The three-way valve can reduce the number of 90° elbows and additional joints used, thereby reducing the overall pressure drop and leakage points of the system and improving layout efficiency.

Pneumatic drive structure
This valve is equipped with double-acting or single-acting pneumatic actuators, with fast opening response time and high control accuracy. The actuator can integrate components such as solenoid valves, limit switches, and valve position feedback devices, and seamlessly connect with PLC or DCS systems to achieve remote control and program logic adjustment.

True Union structure
This product adopts the True Union connection method, so that the valve body can be replaced or repaired without removing the entire pipeline. This structure uses the nut connection design at both ends to achieve rapid separation and reinstallation of the pipeline and valve, which is particularly suitable for application scenarios that require regular maintenance or flushing of the system.

Types of Pneumatic PVDF Butterfly Valve

There are different kinds of Pneumatic PVDF Butterfly Valve, each adapted for different pressures and different usage. The zero offset butterfly valve, which uses the flexibility of rubber, has the lowest pressure rating.

The high performance double offset butterfly valve, used in slightly higher-pressure systems, is offset from the centre line of the disc seat and body seal (offset one), and the centre line of the bore (offset two). This creates a cam action during operation to lift the seat out of the seal resulting in less friction than is created in the zero offset design and decreases its tendency to wear.

The valve best suited for high-pressure systems is the triple offset butterfly valve. In this valve the disc seat contact axis is offset, which acts to virtually eliminate sliding contact between disc and seat. In the case of triple offset valves the seat is made of metal so that it can be machined such as to achieve a bubble tight shut-off when in contact with the disc.

Description of how the Pneumatic PVDF Butterfly Valve works

The pneumatic butterfly valve is a compact device that works by rotating two metal plates on an axis. When the plates are angled in the closed position, they block all flow, and when opened, create an opening for the desired material to pass through.

This operation is done manually or with a lever/knob system to allow for quick and easy changing of the valve's setting. The full flow capacity of this type of valve makes it highly efficient compared to other shutoff devices, as more material can be allowed to pass through when opened.

Pneumatic PVDF Butterfly Valve operate based on the principle of rotating a disc or plate within the valve body to control fluid flow. When the pneumatic actuator receives a signal, it engages the valve, rotating the disc to open, close, or modulate the flow passage. The actuator provides precise control, allowing for accurate adjustments to regulate flow rates.

Application of Pneumatic PVDF Butterfly Valve

Water and Wastewater Management
Pneumatic PVDF Butterfly Valveare ideal for controlling the flow of water in a variety of settings. They can be used to regulate flow from reservoirs, pipelines, and other sources. With precise control over the pressure applied to the valve, it is easy to manage and maintain the required fluid levels in any water management system.

Mining and Mineral Processing
Mining and mineral processing often requires large amounts of water, which must be managed carefully to prevent spills or other environmental damage. Pneumatic PVDF Butterfly Valve with pneumatic actuators are an ideal choice for the industry, while they provide precise control over the flow of fluids in order to meet safety, regulatory, and operational requirements.

Pneumatic Actuator in Pharmaceutical Industries
Pneumatic PVDF Butterfly Valve with pneumatic actuators are extensively used in pharmaceutical industries. Here, they control the flow of various liquids during the drug manufacturing process. These valves prefer for their efficient control and the ability to handle a range of chemical compositions without causing contamination.

Food and Beverage Processing
In food and beverage processing, sanitary conditions are of utmost importance. The ability of Pneumatic PVDF Butterfly Valve with pneumatic actuators to precisely control the flow, which coupled with their ease of cleaning, makes them an excellent choice for this industry. These valves ensure the smooth operation of liquid handling applications, from bottling plants to dairy farms.

Chemical Industries
The chemical industry relies heavily on the precise control of flow for various corrosive and non-corrosive fluids. The robust design and durability of Pneumatic PVDF Butterfly Valve with pneumatic actuators make them an ideal choice for controlling the flow of chemicals under varying temperature and pressure conditions.

Oil and Gas Industry
In the oil and gas industry, Pneumatic PVDF Butterfly Valve with pneumatic actuators use to manage the flow of crude oil, natural gas, petrochemicals, and more. These valves prefer for their ability to withstand high pressure, extreme temperatures, and harsh environments, ensuring reliable performance and safety.

How does Pneumatic PVDF Butterfly Valve Work and Debug?

Pneumatic PVDF Butterfly Valve is composed of pneumatic actuators and Pneumatic PVDF Butterfly Valve, it is used with the circular disc valve rod rotation to do open and close, so as to achieve the opening of the pneumatic valve to do the main application of cut-off valve, this also has function of regulation. At present Butterfly Valve is used more and more on the large and medium diameter pipeline.

Usually do a good job on cleaning the cylinder surface and refueling to the cylinder shaft circlip. Open the cylinder cover to check whether has debris, water and grease status or not every 6 month regularly. If grease is less or dry, you need to disassemble the cylinder to do a comprehensive maintenance, then plus grease.Ensure that the Butterfly valve plate operation is flexible and there has no foreign bodies stuck.

Components of Pneumatic PVDF Butterfly Valve

01/

Disc
The disc is the heart of thePneumatic PVDF Butterfly Valve. It rotates around the stem to open or close the valve. The disc's shape and material can affect the valve's performance and durability.

02/

Seat
The seat seals the valve when it's closed. It's made of a soft material, like rubber or plastic, that can form a tight seal around the disc. The seat's material must be compatible with the fluid being controlled and resistant to temperature and pressure.

03/

Stem
The stem connects the disc to the actuator. It transfers the force from the actuator to the disc, allowing the valve to open or close.

Stems can be one-piece or two-piece designs. One-piece stems are stronger, while two-piece stems allow for easier maintenance.

04/

Body
The body of the valve holds the disc, stem, and seat in place. It's usually made of strong materials like stainless steel or cast iron to withstand pressure and corrosion. The body can have different designs, such as wafer, lug, or flanged, depending on the application.

How to Maintain Pneumatic PVDF Butterfly Valve

● The working conditions and environment meet the requirements for use, and take waterproof measures to prevent impurities such as waterproof and oil from penetrating into the actuator or valve to shorten the service life of the valve. Regular maintenance, add lubricating oil or remove surface dirt and dust.

● During installation, the valve can be directly installed on the pipeline according to the connection method. Under normal circumstances, it can be installed at any position in the pipeline, but it needs to be easily accessible for maintenance. Note that the medium flow of the shut-off valve should flow upward from the vertical valve disc.

● When the Pneumatic PVDF Butterfly Valve is used, the valve stem is only fully open or fully closed. It cannot be used to adjust the flow rate, otherwise its sealing surface will be eroded and accelerate wear.

● If you need to disassemble, pay attention to protect the sealing surface of the valve body to prevent collisions, scratches, etc. from affecting the sealing performance. If abnormal failure occurs and normal operation is not possible, cut off the air source and medium to find out the cause. It can be used after the test is normal.

● Pneumatic PVDF Butterfly Valve should use handwheel when opening and closing. Do not use lever or other tools to avoid damaging the valve. Turn the handwheel clockwise to turn it off and turn it counterclockwise to turn it on.

● lf you do not use it for a long time, you should also pay attention to the storage conditions. It is best to store it in a ventilated and dry place. When storing the Pneumatic PVDF Butterfly Valve, both ends of the channel should be blocked and closed. In order to avoid long-term placement of the component material and damage caused by damp.

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FAQ

Q: What is a pneumatic PVDF butterfly valve?

A: A pneumatic PVDF butterfly valve is a type of industrial valve used for controlling fluid flow in piping systems. It consists of a rotating disc that is positioned in the center of the valve body and is controlled by an actuator that is powered by compressed air. The "PVDF" in the name stands for Polyvinylidene Fluoride, a type of plastic known for its high chemical resistance and durability.

Q: What are the primary advantages of using a pneumatic PVDF butterfly valve?

A: PVDF butterfly valves offer excellent chemical resistance, especially against solvents, acids, and bases. They are lightweight, easy to install, and require minimal space. Their pneumatic operation allows for quick and remote control.

Q: What applications are pneumatic PVDF butterfly valves best suited for?

A: They are commonly used in the pharmaceutical, semiconductor, and chemical processing industries, where corrosive media handling is critical. They are also suitable for water and wastewater treatment facilities.

Q: What are the main applications of pneumatic PVDF butterfly valves?

A: Pneumatic PVDF butterfly valves are commonly used in various industries, including chemical processing, pharmaceuticals, semiconductors, and water and wastewater treatment. They are particularly useful in applications where corrosive or aggressive fluids need to be handled, due to their excellent chemical resistance properties.

Q: What are the benefits of using pneumatic PVDF butterfly valves?

A: Pneumatic PVDF butterfly valves offer several benefits, including their lightweight design, ease of installation, and low maintenance requirements. They also provide fast and reliable operation, thanks to their pneumatic actuator, which can be controlled remotely. Additionally, their chemical resistance properties make them ideal for handling a wide range of corrosive fluids.

Q: What are the limitations of pneumatic PVDF butterfly valves?

A: One limitation of pneumatic PVDF butterfly valves is that they may not provide the same level of precision and control as some other types of valves, such as globe valves or ball valves. They are generally better suited for applications where precise control is not required. Another limitation is that they may not be suitable for use with certain types of fluids, such as viscous fluids or fluids containing large amounts of suspended solids.

Q: How do pneumatic PVDF butterfly valves work?

A: Pneumatic PVDF butterfly valves work by rotating the valve's disc, which is positioned in the center of the valve body, to open or close the flow of fluid through the valve. The disc is connected to an actuator, which is powered by compressed air. When the actuator receives a signal to open or close the valve, it rotates the disc accordingly.

Q: Are pneumatic PVDF butterfly valves suitable for bidirectional flow?

A: Most pneumatic PVDF butterfly valves are bidirectional, meaning they can be used for flow in either direction without affecting their sealing capabilities.

Q: What are the customization options for pneumatic PVDF butterfly valves?

A: Customization options may include special coatings, additional sealing materials, mounting configurations, and electronic position indicators or limit switches.

Q: How do I determine the correct pneumatic PVDF butterfly valve for my application?

A: Consider factors such as flow rate, pressure, temperature, chemical compatibility, and the required control method. Consulting with a valve expert can also help in making the right selection.

Q: How do I install a pneumatic PVDF butterfly valve?

A: Installation typically involves aligning the valve with the pipe, bolting the flanges, and connecting the actuator to the air supply. Always follow the manufacturer's guidelines during installation.

Q: What is the difference between a pneumatic PVDF butterfly valve and other types of butterfly valves?

A: The main differences are the material of construction (PVDF) and the method of operation (pneumatic), which influence the valve's suitability for specific applications, particularly in terms of chemical resistance and remote control.

Q: How do I replace a pneumatic actuator on a PVDF butterfly valve?

A: Replace the actuator by first relieving the air pressure, removing the old actuator, installing the new actuator by aligning it with the stem, and reattaching it to the valve and the air supply. Test the valve to ensure proper operation before returning it to service.

Q: What are the different types of pneumatic actuators used with PVDF butterfly valves?

A: There are two main types of pneumatic actuators used with PVDF butterfly valves: single-acting and double-acting. Single-acting actuators use compressed air to either open or close the valve, while double-acting actuators use compressed air to both open and close the valve. Double-acting actuators typically provide faster and more precise control than single-acting actuators.

Q: What materials are pneumatic PVDF butterfly valves made from?

A: Pneumatic PVDF butterfly valves are typically made from PVDF plastic, which is known for its excellent chemical resistance and durability. The valve body and disc may also be made from other materials, such as stainless steel, to provide additional strength and support.

Q: How do you choose the right pneumatic PVDF butterfly valve for your application?

A: When choosing a pneumatic PVDF butterfly valve for your application, there are several factors to consider, including the flow rate, pressure, and temperature of the fluid being handled, as well as the required control and actuation methods. It's also important to consider the chemical compatibility of the valve materials with the fluid being handled.

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