Email Us

Manual Butterfly Valve-Ningjin Thriveon Valve Co., Ltd.|Cost-Effective Flow Control&Reliable Fluid Regulation

Jul . 29, 2025 17:40

Introduction to Manual Butterfly Valves

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. These valves are operated manually, typically through a lever or gear mechanism, making them ideal for applications where automated control is not required. The manual butterfly valve is characterized by its simple structure, compact design, and ease of installation, which contribute to its widespread use across various industries.

Manual Butterfly Valve-Ningjin Thriveon Valve Co., Ltd.|Cost-Effective Flow Control&Reliable Fluid Regulation

Key Features and Advantages

Manual butterfly valves are distinguished by their manual operated butterfly valve design, which allows for direct human control. This simplicity translates into several advantages:

  • Simple Structure: The absence of complex actuators or electrical components reduces the risk of mechanical failure and simplifies maintenance.
  • Cost-Effective: Manual valves are generally less expensive than their automated counterparts, making them a preferred choice for budget-conscious applications.
  • Lightweight and Compact: Their lightweight design facilitates easy handling and installation, even in confined spaces.
  • Reliability: With fewer moving parts, manual butterfly valves are less prone to breakdowns and require minimal upkeep.

Compared to pneumatic or electric actuators, manual butterfly valves are particularly advantageous in environments where power supply is unreliable or where manual intervention is necessary for safety reasons.

Technical Specifications

The manual butterfly valve is engineered to meet rigorous industry standards, ensuring durability and performance under diverse conditions. Below is a detailed overview of its technical specifications:

Material Body Disc Stem Seat
Grey Cast Iron Ductile Cast Iron (Nickel-plated or Nylon coated) Stainless Steel 410/416/304/316 EPDM, BUNA-N, PTFE, Viton, Hypalon, Neoprene, Metal Seated
Ductile Cast Iron Stainless Steel 304/316
Stainless Steel 304/316 Aluminum Bronze

Pressure Ratings: The valve is designed to handle a range of pressure classes, including CLASS 125/150, PN10/16/25, and 5K/10K/16K. These ratings ensure compatibility with various industrial systems, from low-pressure water supply networks to high-pressure chemical processing plants.

Applications and Industry Standards

Manual butterfly valves are widely used in applications that require efficient flow control without the need for automation. They are commonly found in:

  • Water and Wastewater Treatment: For regulating the flow of water in pipelines and treatment facilities.
  • HVAC Systems: In heating, ventilation, and air conditioning systems to manage airflow.
  • Chemical and Petrochemical Industries: For controlling the flow of corrosive or hazardous substances.
  • Power Generation: In cooling water systems and other auxiliary processes.

The manual operated butterfly valve complies with international standards such as API 609, BS5155, MSS SP-67/68, and EN593, ensuring interoperability and reliability across global markets.

Installation and Maintenance

Proper installation is critical to the performance and longevity of a manual butterfly valve. Follow these steps for optimal results:

  1. Flange Preparation: Ensure the flanges are spaced to allow the valve to pass easily, with the disc in a half-opened position.
  2. Installation: Avoid fitting gaskets between the flanges. Position the valve with the disc half-opened and secure the bolts without tightening them initially.
  3. Final Adjustment: Open the valve fully to verify the pipeline alignment, then tighten the nuts securely.

Regular maintenance, such as lubricating the stem and checking the seat integrity, ensures the valve remains functional and prevents leaks.

Company Background: Ningjin Thriveon Valve Co., Ltd.

Ningjin Thriveon Valve Co., Ltd., a leading manufacturer of manual butterfly valve manufacturer, has established itself as a trusted name in the global valve industry. With a focus on innovation and quality, the company produces a wide range of butterfly valves tailored to meet the demands of diverse applications.

As a manual butterfly valve manufacturer, Ningjin Thriveon Valve Co., Ltd. adheres to strict quality control measures, ensuring that each product meets international standards. Their commitment to customer satisfaction is reflected in their comprehensive product range, including manual wafer butterfly valve DN150 and manual exhaust butterfly valve, which cater to specialized needs.

Conclusion

The manual butterfly valve is a versatile and reliable solution for fluid control systems. Its simple design, cost-effectiveness, and compliance with industry standards make it a preferred choice for various applications. By choosing a manual butterfly valve manufacturer like Ningjin Thriveon Valve Co., Ltd., users can ensure the quality and performance needed to meet their operational requirements.



Related Products