Aug . 18, 2025 11:27
The manual butterfly valve is a critical component in fluid control systems, offering a balance of simplicity, durability, and efficiency. This article delves into the features, technical specifications, applications, and industry relevance of manual butterfly valves, with a focus on their role in modern industrial and commercial systems. Whether you're a professional in the field or a curious reader, this guide will provide valuable insights into the design and utility of these essential valves.
A manual butterfly valve is a type of quarter-turn valve that uses a disc to control the flow of fluids through a pipeline. Unlike pneumatic or electric actuated valves, manual butterfly valves are operated by hand, making them ideal for applications where simplicity and cost-effectiveness are priorities. The two primary manual operation methods are lever-operated and gear-operated valves, both of which are classified under the broader category of manual butterfly valves.
One of the key advantages of manual butterfly valves is their simple structure, which reduces the likelihood of mechanical failure and minimizes maintenance requirements. This makes them a popular choice in industries where reliability and ease of use are paramount.
The technical specifications of manual butterfly valves are designed to meet a wide range of industrial requirements. Below is a detailed overview of the key parameters:
Manual butterfly valves are constructed using a variety of materials to ensure compatibility with different fluids and operating conditions:
These valves are engineered to handle a broad range of pressure levels, ensuring versatility across different applications:
Manual butterfly valves comply with international standards to guarantee performance and safety:
Proper installation and maintenance are critical to the longevity and efficiency of manual butterfly valves. The following steps outline the standard procedure:
Manual butterfly valves are widely used across various industries due to their reliability and adaptability. Some common applications include:
Ningjin Thriveon Valve Co., Ltd. (河北赢达金属管业有限公司) is a leading manufacturer of manual butterfly valves and other industrial valve solutions. With a focus on innovation, quality, and customer satisfaction, the company has established itself as a trusted name in the global valve market. Their products are designed to meet the highest industry standards, ensuring durability and performance in even the most demanding environments.
As a manual butterfly valve manufacturer, Ningjin Thriveon Valve Co., Ltd. offers a comprehensive range of products, including manual wafer butterfly valves, manual exhaust butterfly valves, and manual butterfly valves with limit switches. Their commitment to excellence is reflected in their adherence to international standards such as API 609 and EN593, ensuring that their valves are compatible with a wide array of systems and applications.
For more information about the company and its products, visit their official website: Ningjin Thriveon Valve Co., Ltd.
A manual butterfly valve is a type of valve that is operated manually, typically using a lever or gear mechanism. It includes lever-operated butterfly valves and gear-operated butterfly valves, both of which are classified under the broader category of manual butterfly valves. Gear-operated valves are particularly useful in applications requiring higher torque or precise control.
The primary advantages of manual butterfly valves include:
Manual butterfly valves are used in a variety of industries, including:
The National Institute of Standards and Technology (NIST) plays a vital role in establishing and maintaining industry standards that ensure the safety, reliability, and interoperability of industrial components like manual butterfly valves. While the direct link to the NIST website provided in the context is unavailable, the organization's work in metrology and standardization is critical to the development of high-quality valves.
NIST's standards, such as those related to fluid control systems and material testing, provide a framework for manufacturers to produce valves that meet rigorous performance criteria. For example, the NIST website offers resources on measurement science and standards that are relevant to the design and testing of industrial valves.
Manual butterfly valves are indispensable in modern industrial and commercial systems, offering a combination of simplicity, durability, and cost-effectiveness. Their ability to handle a wide range of pressures and materials, coupled with compliance with international standards, makes them a versatile choice for various applications. As a leading manual butterfly valve manufacturer, Ningjin Thriveon Valve Co., Ltd. continues to innovate and deliver high-quality solutions that meet the evolving needs of the market.
For further details about manual butterfly valves or to explore the full range of products offered by Ningjin Thriveon Valve Co., Ltd., visit their official website: Ningjin Thriveon Valve Co., Ltd.
| Parameter | Details |
|---|---|
| Material | Body: Grey Cast Iron, Ductile Cast Iron, Stainless Steel 304/316, Carbon Steel; Disc: Ductile Cast Iron (Nickel-plated/Nylon coated), Stainless Steel 304/316, Aluminum Bronze; Stem: Stainless Steel 410/416/304/316; Seat: EPDM, BUNA-N, PTFE, Viton, Hypalon, Neoprene, Metal Seated |
| Pressure Rating | CLASS 125/150, PN10/16/25, 5K/10K/16K |
| Standards Compliance | API 609, BS5155, MSS SP-67/68, EN593 |
| Installation Requirements | Flange spacing, no gaskets between flanges, bolts inserted with disc in half-opened position, nuts tightened after full opening |
NIST Reference: The National Institute of Standards and Technology (NIST) provides critical resources and standards for industrial components. For more information, visit the official NIST website: https://www.nist.gov/
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