Your Professional Gate Valve Supplier
WENZHOU ZHONGTOU VALVE/ZT VALVE is a leading valve manufacturer specializing in the production of various types of butterfly valves. Our products are extensively utilized in fluid systems across industries such as oil and gas, chemical, petrochemical, power generation, shipbuilding, and machinery.
Rich Experience
Our founders possess over three decades of experience in the stainless steel industry and have been exporting stainless steel products for more than 15 years.
Quality Control
We implement a scientific informatization management system and rigorous quality control processes. CAD and CAPP systems are employed for design and innovation, while PDM and ERP systems support our information management infrastructure.
Professional Team
We boast a highly skilled technical team, including five engineers with an average of over ten years of experience. This expertise enables efficient production arrangements and rapid business growth.
Sales Market
Our products are exported to over 30 countries, including European nations like Spain and the United Kingdom, North American markets such as the United States, Middle Eastern countries like Iran, and Southeast Asian countries such as Vietnam, Malaysia, and Singapore.
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Stainless Steel Flanged Gate Valve
Warranty: 12 Months. Type: Flange Gate Valve. Place of Origin: Zhejiang, China. Application: General Add to Inquiry -
Ss Gate Valve
Origin: Zhejiang, China. Application: General. Material: Stainless Steel. Power: Manual Add to Inquiry
Parameter
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Warranty |
12 Months |
|
Place of Origin |
Zhejiang, China |
|
Application |
General |
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Temperature of Media |
Normal Temperature |
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Power |
Manual |
|
Media |
Water / Oil / Steam |
|
Port Size |
1/2"-12" |
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Structure |
Gate |
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Material |
304/ 316/ WCB |
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Standard or Nonstandard |
Standard |
|
Pressure |
PN 1.6-16Mpa |
|
Certificate |
ISO9001/CE |
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Medium |
Water Oil Gas |
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Working medium |
Air Water Oil |
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Applicable medium |
Multi Function |
Types of Gate Valve
The gate valves produced by our company mainly include the following types:
Wedge Gate Valves
A wedge gate valve is one of the more common types you will find in widespread use across all relevant plumbing and industrial pipeline setups. Subtypes include the solid wedge, the flexible wedge, and the split wedge. Solid wedge gate valves (or plain wedge valves) tend to be the most widely used.
Parallel Gate Valves
A parallel gate valve (sometimes called a parallel disk gate valve, or parallel slide gate valve) operates in much the same way as a wedge gate valve, but the gate features two disks placed at a 90-degree angle to the fluid flow direction. They are generally seen as safer in high temperature applications, where the parallel design is less likely to result in thermal binding.
Some Installation Specifications That Should Be Followed When Installing Gate Valves
● Installation of the gate valve, the flange must be at room temperature.
● While valves can be installed in any form, flat or upright, it is advisable to install them in an upright form for easy hand-wheel access.
● Ensure that during installation, the pipe flanges are spaced so that there is enough space for the valve to be inserted or removed during servicing.
● Welding jobs should be completed before the installation of the gate valve.
● Sludges and waste residues in the pipeline must be washed away before the valves are installed.
● The flange and valve should be properly aligned, and the pipe handling of the weight of the valve should be checked.
● The materials of the gate valve parts should be checked to ensure no damage was done during transportation or storage.
● The bolts connecting the valve to the pipes should be tightened properly, and the pressure should be equally distributed.
● The parts of the pipe flanges to contact the valves should be clean and free of residue.
● The gate valve should be tested after bolting to ensure the valve is stable in its position.
Safety Precautions When Using Gate Valves
1. The gate valve with bypass should be opened before opening the bypass valve (to balance the differential pressure in and out and reduce the opening torque).
2. When operating, the human body should not be facing the top of the valve stem to prevent the stem from being pressurized and ejected.
3. Switching operation should be smooth, force to be uniform, the use of impact is strictly prohibited, the general situation can be operated by hand, avoid the use of force lever to operate the new valve.
4. Handwheel (handle) strength is designed to operate the required torque value as a reference basis, so do not handwheel (handle) as an operating pedal and arbitrary growth or lengthening lever, or a wrench to increase the torque excessively, not to use ropes and other roles in the handwheel (handle), and then a crane or pulley to operate or lift the valve.
5. Gate valve with handwheel or handle, turn the handwheel clockwise to close, counterclockwise to open. When the valve is fully open, the handwheel should be turned back 1 to 2 turns in the opposite direction. The operation of the gate valve with other actuators should strictly follow the product instructions.
6. Under the high pressure difference, the gate is half open and half closed state easy to damage the gate, so the gate valve can not be used for throttling or regulation, must be completely open or completely closed at one time.
The Steps in Custom Gate Valve Manufacturing
Design Process
Initial Consultation: Collaboration begins with awareness of the client's needs, including the operating environment, fluid characteristics, and desired valve performance.
Conceptual Design: Engineers develop preliminary designs based on the specifications gathered, focusing on essential parameters such as flow rate, pressure relief ratings, and temperature ranges.
Detailed Design: Using advanced CAD software, the initial concepts are refined into detailed engineering drawings. This step includes simulations to predict performance under various conditions.
Material Selection
Base Materials: Choosing materials for the gate valve body and internal components is essential when selecting your project. Materials are chosen based on their strength, corrosion resistance, and compatibility with the operating medium.
Seals and Gaskets: Materials for seals and gaskets are chosen to ensure leak-tight performance and durability. Options include PTFE, elastomers, and advanced composites. It is essential to check with a pressure relief manufacturer to ensure there are no leaks due to different water pressure levels.
Actuators and Controls: Depending on the level of automation required, various actuators (pneumatic, electric, hydraulic) and control systems are specified to optimize valve operation and responsiveness.
Production Methods
Fabrication: Components are manufactured using precision machining, casting, or forging techniques. Advanced manufacturing processes like CNC machining ensure high accuracy and repeatability.
Assembly: All components are meticulously assembled by skilled technicians, following strict procedural guidelines to ensure proper fit and function.
Surface Treatment and Coating: To enhance durability and performance, valves may undergo treatments such as anodizing, galvanizing, or applying specialized coatings.
Quality Control
Inspection: Every custom gate valve should undergo rigorous inspection at various stages of production. This includes dimensional checks, material verification, and surface quality assessments.
Testing: Comprehensive testing such as hydrostatic pressure relief tests, leak tests, and operational cycling is conducted to validate performance under real-world conditions. Typically, a pressure relief manufacturer performs these tests.
Certification: The pressure relief manufacturer certifies valves to meet industry standards and client-specific requirements, ensuring compliance with regulations and exceeding performance expectations.
Packaging and Shipping
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Packaging |
Export standard Carton or wooden case |
|
Shipping |
We will help you to choose the best shipping way according to your detail requirements. By sea, by air, or by express, etc. |
Our Services
1. Pre-sale service
ZHONGTOU VALVE has a technical team with rich experiences in fluid control system, and we own industry-leading installation and inspection equipments. From drawing to installation, ZHONGTOU VALVE will provide you with the most professional services, technical assistance and quality assurance, to optimize your system operation in the best state.
2. Sale of services
● Fast delivery
We are a factory with a large inventory of stock, which guarantees that the goods will be shipped within the fastest day from the date of signing the contract.
● Quality Inspection
Our products are manufactured in strict accordance with national and international standards, and we test each product before delivery. If you would like to view our quality certification and various test reports, please ask us.
● Project Tracking
ZHONGTOU VALVE will establish a dedicated project team for every solution order, in order to provide a better aftermarket service.
3. After-sales service
According to the contract to provide product certification, production license, inspection reports, installation instructions.
In the correct installation and use of the product quality problems, the company will be responsible for in the end.
Our Factory
WENZHOU ZHONGTOU VALVE/ZT VALVE is located in Wenzhou City, Zhejiang Province, a place with a very developed stainless steel industry. There is a well-established and mature supply chain here. We mainly export to over 30 countries in North America, South America, Europe, Asia and other states. With persistence and effort, we have become one of the leading enterprises of valves fittings and flanges in China.
FAQ
As one of the leading gate valve manufacturers and suppliers in China, we warmly welcome you to buy discount gate valve from our factory. All our products are with high quality and competitive price. Contact us for quotation.
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