Aug . 02, 2025 22:03
Manual butterfly valves are essential components in fluid control systems, offering a reliable and cost-effective solution for regulating the flow of liquids and gases. Unlike their automated counterparts, manual butterfly valves are operated by hand, making them ideal for applications where simplicity and ease of maintenance are prioritized. These valves are commonly used in industrial, commercial, and residential settings, providing a balance between functionality and affordability. The Manual Butterfly Valve is a prime example of this category, designed with a focus on durability, efficiency, and user-friendly operation.
One of the most notable advantages of manual butterfly valves is their simple structure. This design reduces the complexity of installation and maintenance, making them a preferred choice for engineers and technicians. The valve's compact size and lightweight construction further enhance their usability, allowing for easy integration into existing piping systems. Additionally, manual butterfly valves are available in various configurations, including lever-operated and gear-operated designs, catering to diverse operational needs.
Another significant benefit is their cost-effectiveness. Since they do not require external power sources or complex actuation mechanisms, manual butterfly valves are generally more affordable than electric or pneumatic alternatives. This makes them an attractive option for budget-conscious projects without compromising on performance. Moreover, their straightforward operation ensures that even non-technical personnel can manage them with minimal training.
The Manual Butterfly Valve is engineered to meet stringent industry standards, ensuring optimal performance and safety. Below is a detailed overview of its technical specifications:
| Parameter | Details |
|---|---|
| Material | 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 Rating | CLASS 125/150, PN10/16/25, 5K/10K/16K |
| Standards Compliance | API 609, BS5155, MSS SP-67/68, EN593 |
| Installation Requirements | 1. Space out flanges for easy valve passage with the disc in a half-open position. 2. Avoid gaskets between flanges. 3. Insert bolts with the disc in a half-open position without tightening nuts. 4. Open the valve fully to verify pipeline alignment and then tighten the nuts. |
Manual butterfly valves are widely used across various industries due to their versatility and reliability. In the water treatment sector, they are employed to control the flow of water and wastewater, ensuring efficient system operation. Similarly, in chemical processing, these valves manage the flow of corrosive substances, thanks to their robust materials and corrosion-resistant coatings.
Another common application is in HVAC systems, where they regulate air and coolant flow to maintain optimal environmental conditions. Additionally, manual butterfly valves are utilized in food and beverage industries, where hygiene and ease of cleaning are critical. Their ability to handle a wide range of media, from liquids to gases, further expands their applicability.
Proper installation is crucial for the optimal performance of manual butterfly valves. The installation process involves several key steps, as outlined in the technical specifications. Ensuring that the flanges are correctly spaced and the valve is aligned with the pipeline minimizes the risk of leaks and mechanical stress. It is also essential to follow the recommended torque values when tightening the bolts to prevent over-tightening, which could damage the valve's components.
Maintenance of manual butterfly valves is relatively straightforward. Regular inspections for signs of wear, such as leaks or corrosion, are necessary to ensure continued reliability. Lubricating the stem and moving parts at regular intervals can extend the valve's lifespan and maintain smooth operation. Additionally, replacing worn-out seals or gaskets promptly prevents potential failures and maintains system integrity.
A manual butterfly valve is a type of quarter-turn valve operated by hand, typically using a lever or gear mechanism. It is designed to control the flow of media in a piping system by rotating the disc within the valve body. This type of valve is distinct from automated versions, which use electric or pneumatic actuators for operation. For more details, visit the Manual Butterfly Valve product page.
Manual butterfly valves offer several advantages, including a simple structure, ease of installation, and a compact design. Their lightweight construction makes them easy to handle and transport, while their straightforward operation reduces the need for specialized training. Additionally, they are cost-effective compared to automated valves, making them a popular choice for various applications. For further information, explore the Manual Butterfly Valve specifications.
Ningjin Thriveon Valve Co., Ltd. is a leading manufacturer of high-quality valves, specializing in the production of manual butterfly valves and other industrial components. With a commitment to innovation and customer satisfaction, the company ensures that its products meet the highest standards of performance and reliability. Their extensive range of valves caters to diverse industries, including oil and gas, water treatment, and chemical processing. For more information about the company, visit the Ningjin Thriveon Valve Co., Ltd. website.
The Manual Butterfly Valve is a versatile and reliable solution for fluid control systems. Its simple design, cost-effectiveness, and ease of maintenance make it an ideal choice for a wide range of applications. By adhering to industry standards and utilizing high-quality materials, Ningjin Thriveon Valve Co., Ltd. ensures that their products deliver exceptional performance and durability. Whether in water treatment, chemical processing, or HVAC systems, manual butterfly valves continue to play a crucial role in modern industrial operations.
1. National Institute of Standards and Technology (NIST). Retrieved from https://www.nist.gov/
2. Manual Butterfly Valve Product Page. Ningjin Thriveon Valve Co., Ltd.
3. Ningjin Thriveon Valve Co., Ltd.. Retrieved from https://www.thriveonvalve.com
Related Products
Call us on:
+86-311-86935302
+86-311-86935302
Email Us:
info@thriveonvalve.com
South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei Province, China 
