Product description：
Microfiber braided string
The pricing of our product is subject to variations depending on a range of factors such as alterations to specifications, variations in material costs, and changes in exchange rates. In order to keep you informed of the latest pricing, kindly provide me with your contact details and I will make sure to reach out with any updates.
Introduction to Gate valves
Gate valves
Gate valves are specifically engineered for the purpose of initiating or ceasing the movement of fluid and are most suitable when an uninterrupted and unobstructed flow of liquid is required. As these valves are utilized, they are typically operated either in a fully opened position or a fully closed position.
When the Gate valve is fully open, the disk is completely removed and drawn up into the valve Bonnet, creating a wide opening for flow. This opening matches the inside diameter of the pipesystem where the valve is installed. The versatility of a Gate valve allows for its usage with various types of liquids. Furthermore, when the valve is closed, it provides a reliable and secure seal, ensuring no leakage occurs.
Construction of a Gate valve
Gate valves are made up of three primary components: the body, the bonnet, and the trim. To connect to other equipment, the body is typically fastened using flange, screw, or weld connections. The bonnet houses the movable components and is fixed onto the body using screws for ease of maintenance. The valve trim comprises several parts, including the stem, gate, disc or wedge, and seat rings. By arrangement and precise measurements, these parts work together to regulate fluid flow accurately.
Disks of a Gate valve
Gate valves are offered with a variety of wedges or disks, which determines their range. The type of wedge used is typically the basis for categorizing Gate valves. It's crucial to choose the right wedge for the application to ensure optimal performance.
The most common were:
The solid wedge is a popular choice for disks due to its strength and simplicity. It is widely used in various fields where durability and stability are required. Its design is straightforward yet effective, making it an ideal choice for many applications. Whether it's for industrial purposes or household appliances, the solid wedge is a reliable option that can withstand heavy usage and wear. Its durability makes it a cost-effective choice in the long run, helping businesses and households save money on replacements and repairs. Overall, the solid wedge is a versatile and durable disk that is widely utilized in industries and households worldwide.
This type of wedge valve is versatile and can be installed in any position. It works well with nearly all types of liquids. Its solid wedge is constructed from a single piece, making it ideal for turbulent flow situations.
The flexible wedge is designed as a one-piece disc that features a cut along its perimeter. This unique design element enhances its capability to correct errors or adapt to changes in the angle between the seats.
The size, shape, and depth of the reduction will differ. Retaining strength but providing limited flexibility, a narrow and shallow cut is ideal.
When creating a deeper and wider cut or recess in a material, there is less material left in the center. This reduction in material can lead to greater flexibility but weaker structural integrity.
The split wedge is designed to automatically adjust and align itself to fit securely between the seats on both sides. It consists of two pieces that fit into the tapered seats of the valve body. This type of wedge is ideal for handling non-condensing gases and liquids at normal temperatures, particularly those that are corrosive. The split wedge's construction allows for versatility and adaptability, making it well-suited for various applications in the treatment of such fluids.
Stem of a Gate valve
The proper positioning of the disk is dependent on the stem, which acts as a connection between the handwheel and the disk. Stems are typically crafted through forging and are attached to the disk using threaded or other methods. To ensure there is no leak in the seal area, it is essential to have a smooth surface finish on the stem.
Gate valves are classified as either:
Rising Stem
Non Rising Stem
If you have a Rising Stem valve, you can easily tell if it's open by looking at the position of the stem. This is because the stem is designed with threads to fit into the bushing threads of a Yoke, which is an essential component of the valve. The Yoke itself is typically mounted onto the Bonnet. As soon as the valve is opened, the stem will begin to rise above the handwheel, due to the threaded connection between the stem and the Yoke. This is a built-in feature of the valve that makes it easy for users to tell whether or not the valve is open without any guesswork.
In a non-rising stem valve, the stem doesn't move upwards when the valve is opened. Rather, the stem is threaded into the disk. Whenever the handwheel on the stem is rotated, the disk moves up or down the stem through the threads while the stem remains in a fixed vertical position.
Detailed (large) drawings of both stem types can be found in the main Menu "Valves". Please note that the content generated here is based on the original information provided and not in the style of ChapGPT dialogue.
Rising Stem Gate valve
Seats of a Gate valve
Seats for Gate valves are either provided integral with the valve body or in a seat ring type of construction. Seat ring construction provides seats which are either threaded into position or are pressed into position and seal welded to the valve body. The latter form of construction is recommended for higher temperature service.
Integral seats provide a seat of the same material of construction as the valve body while the pressed-in or threaded-in seats permit variation. Rings with hard facings may be supplied for the application where they are required.
Advantages and Disadvantages of Gate valves
Advantages:
Good shutoff features
Gate valves are bidirectional and therefore they can be used in two directions
Pressure loss through the valve is minimal
Disadvantages:
They can not be quickly opened or closed
Gate valves are not suitable for regulate or throttle flow
They are sensitive to vibration in the open state
Cast Steel Gate Valve API 600 ANSI Class 150
This heavy duty flanged Class 150 gate valve with full port offers durability throughout a wide range of industrial applications, boiler plant and rugged environments. Handwheel operated and offered in ANSI 150, offering minimum leakage and maximum service life.
Designed to API 600 and pressure tested in accordance with API 598/EN12266-1.
Used commonly where a minimum pressure drop is important. This cast steel gate valve offers efficient isolation of flow in either direction of the valve. Outside screw and yoke with rising stem for open / close indication. WCB heavy duty body with full port. The wedge disc is fully guided to ensure tight sealing. Bolted body construction with handwheel operation.
Key Features:
•Bolted Bonnet Construction
•Outside Screw and Yoke
•Non-Rotating Rising Stem
•Handwheel Operated
•Renewable Threaded-in Backseat Bushing
•Cast Steel
•Flanged ANSI 150
•Sizes 2" to 12"
•API 600
We are a professional Customized ANSI Gate Valve. We can provide the best ANSI Gate Valve for sales and competitive price. If you are looking Float ANSI Gate Valve supplier, we are a good choice. Contact us to buy ANSI Gate Valve.
Hot Tags: ansi gate valve, China ansi gate valve manufacturers, suppliers, factory
