Aug . 10, 2025 05:30
The Manual Butterfly Valve is a critical component in fluid control systems, offering a balance of simplicity, reliability, and cost-effectiveness. This article provides an in-depth analysis of its features, technical specifications, applications, and the company behind its production. Whether you're an engineer, a procurement officer, or a student of mechanical systems, this guide will equip you with the knowledge to understand the role of manual butterfly valves in modern industries.
Manual butterfly valves are designed for applications where manual operation is sufficient to control the flow of liquids, gases, or other media. Unlike their pneumatic or electric counterparts, these valves rely on human input through mechanisms such as levers or gears. This simplicity translates to a manual operated butterfly valve, which is characterized by its straightforward design and ease of maintenance.
According to the manual butterfly valve manufacturer, Ningjin Thriveon Valve Co., Ltd., these valves are ideal for scenarios where automated systems are unnecessary or cost-prohibitive. Their versatility is further enhanced by the range of materials and pressure ratings available, making them suitable for diverse environments.
The manual butterfly valve is engineered to meet rigorous industry standards, ensuring compatibility and performance across applications. Below is a detailed table of its specifications:
| Parameter | Details |
|---|---|
| Materials | Body: Grey Cast Iron, Ductile Cast Iron, Stainless Steel 304/316, Carbon Steel Disc: Ductile Cast Iron (Nickel-plated or 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 Ratings | CLASS 125/150; PN10/16/25; 5K/10K/16K |
| Standards Compliance | API 609, BS5155, MSS SP-67/68, EN593 |
| Installation Guidelines | 1. Space flanges to allow easy passage of the valve with the disc in a half-open position. 2. Avoid using gaskets between flanges. 3. Insert bolts with the disc in a half-open position and avoid tightening nuts immediately. 4. Fully open the valve to verify pipeline alignment before tightening nuts. |
One of the primary benefits of a manual operated butterfly valve is its simplicity. Unlike pneumatic or electric actuators, which require external power sources and complex control systems, manual valves are self-sufficient. This makes them particularly advantageous in environments with limited access to electricity or where system redundancy is a concern.
Additionally, manual butterfly valves are lightweight and compact, reducing the space they occupy in piping systems. Their manual hand operated butterfly valve design also simplifies installation and maintenance, as fewer components are involved. This is especially beneficial for industries where downtime must be minimized.
Manual butterfly valves are widely used in industries that require reliable flow control without the need for automation. Some common applications include:
The manual wafer butterfly valve DN150 is particularly suited for low to medium-pressure applications, such as in residential plumbing or small-scale manufacturing. Its adaptability to various materials ensures compatibility with a wide range of media, from water to aggressive chemicals.
As a leading manual butterfly valve manufacturer, Ningjin Thriveon Valve Co., Ltd. has established itself as a trusted name in the industry. The company specializes in producing high-quality valves that meet international standards, ensuring durability and performance in demanding environments.
With a focus on innovation and customer satisfaction, Ningjin Thriveon Valve Co., Ltd. offers a comprehensive range of products, including manual butterfly valves with limit switches and manual exhaust butterfly valves. Their commitment to quality is reflected in the materials used and the rigorous testing processes applied to each product.
A: A manual butterfly valve is a type of valve that is operated manually, typically through a lever or gear. It is designed for applications where automated control is unnecessary, offering a cost-effective and reliable solution.
A: The advantages include a simple structure, ease of installation, lightweight design, and low maintenance requirements. These features make them ideal for environments where automation is not feasible.
A: Follow these steps: 1) Space flanges to allow the valve to pass with the disc in a half-open position. 2) Avoid using gaskets between flanges. 3) Insert bolts with the disc in a half-open position and avoid tightening nuts immediately. 4) Fully open the valve to verify pipeline alignment before tightening nuts.
The manual butterfly valve is designed to comply with global standards such as API 609, BS5155, and EN593. These standards ensure that the valve meets specific performance and safety criteria, making it suitable for critical applications. For further details on industry standards, refer to the National Institute of Standards and Technology (NIST), which provides authoritative guidelines for measurement and testing in engineering systems.
According to NIST, adherence to standardized specifications is crucial for ensuring the interoperability and reliability of industrial components. By following these guidelines, manufacturers like Ningjin Thriveon Valve Co., Ltd. can guarantee that their products perform consistently under varying conditions.
The manual butterfly valve is a versatile and reliable solution for fluid control in a wide range of industries. Its simple design, ease of installation, and compliance with international standards make it an essential component in modern piping systems. For more information on the product or to explore other offerings from Ningjin Thriveon Valve Co., Ltd., visit their official website.
National Institute of Standards and Technology (NIST). (n.d.). Retrieved from https://www.nist.gov/
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+86-311-86935302
+86-311-86935302
Email Us:
info@thriveonvalve.com
South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei Province, China 
