Manual Butterfly Valve - Ningjin Thriveon Valve Co., Ltd. | Simple Design, Reliable Performance

Introduction to Manual Butterfly Valves

The manual butterfly valve is a critical component in fluid control systems, offering a balance between simplicity and efficiency. These valves are manually operated, typically through a lever or gear mechanism, making them ideal for applications where automated systems are unnecessary. Ningjin Thriveon Valve Co., Ltd., a leading manufacturer of industrial valves, has established itself as a trusted provider of high-quality manual butterfly valves tailored to diverse industrial needs.

Key Features and Advantages

Manual butterfly valves are renowned for their simple structure and lightweight design, which contribute to their ease of installation and maintenance. Unlike pneumatic or electric actuators, manual valves eliminate the need for complex power sources, reducing both cost and operational complexity. This makes them particularly suitable for environments where reliability and minimal downtime are paramount.

Material Compatibility

These valves are constructed from a variety of materials to suit different operational requirements:

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

Technical Specifications

Parameter	Details
Pressure Ratings	CLASS 125/150; PN10/16/25; 5K/10K/16K
Standards Compliance	API 609, BS5155, MSS SP-67/68, EN593
Installation Guidelines	Space flanges to allow valve passage with the disc in a half-open position. Avoid gaskets between flanges. Install bolts with the disc in a half-open position, tightening nuts after full valve opening.

Applications and Industry Use Cases

Manual butterfly valves are widely used in industries such as water treatment, HVAC systems, chemical processing, and oil and gas. Their versatility allows them to handle a range of media, including water, gases, and corrosive fluids. For instance, manual wafer butterfly valves are commonly employed in low-pressure applications where space is a constraint.

Comparative Analysis: Manual vs. Pneumatic Actuated Valves

While pneumatic actuator butterfly valves offer automated control, manual valves excel in simplicity and cost-effectiveness. According to the National Institute of Standards and Technology (NIST), manual systems are often preferred in scenarios requiring minimal maintenance and where power supply is unreliable. This makes them a reliable choice for critical infrastructure projects.

Frequently Asked Questions (FAQ)

1. What is a Manual Butterfly Valve?

A manual butterfly valve is a type of quarter-turn valve operated by a lever or gear mechanism. It includes gear-operated valves and lever-operated models, designed for manual control without external power sources.

2. What Are the Advantages of Manual Butterfly Valves?

These valves are easy to install, have a simple structure, and are lightweight. Their durability and cost-effectiveness make them suitable for a wide range of applications.

Company Background: Ningjin Thriveon Valve Co., Ltd.

As a manual butterfly valve manufacturer, Ningjin Thriveon Valve Co., Ltd. has a proven track record of delivering high-quality valves that meet international standards. Their commitment to innovation and customer satisfaction has positioned them as a leader in the industry. The company's products are designed to withstand harsh environments, ensuring long-term performance and reliability.

Conclusion

Manual butterfly valves are indispensable in modern industrial systems, offering a blend of simplicity, reliability, and cost-effectiveness. With Ningjin Thriveon Valve Co., Ltd. as a trusted supplier, users can be assured of quality and compliance with global standards. For further information, visit the product page or explore the company's official website.

References

National Institute of Standards and Technology (NIST). "Driving Innovation." Retrieved from https://www.nist.gov/.