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Manual Butterfly Valve-Ningjin Thriveon Valve Co., Ltd.|Simple Design&Cost-Effective

Aug . 12, 2025 12:15

Introduction

Butterfly valves are essential components in fluid control systems, offering efficient flow regulation across various industries. Among the different types, manual butterfly valves stand out for their simplicity, reliability, and cost-effectiveness. This article provides an in-depth analysis of manual butterfly valves, covering their functionality, technical specifications, applications, and the company behind the product, Ningjin Thriveon Valve Co., Ltd..

Understanding Manual Butterfly Valves

A manual butterfly valve is a type of quarter-turn valve operated manually using a lever or gear. Unlike pneumatic or electric actuators, manual valves rely on direct human interaction for operation. This design simplifies the structure, making them ideal for applications where automation is unnecessary or cost-prohibitive.

Key operation methods include:

  • Levers: Direct hand operation for quick on/off control.
  • Gear-Operated Systems: Provide mechanical advantage for larger valves or higher torque requirements.

Compared to pneumatic actuator butterfly valves, manual valves are lighter, easier to maintain, and less prone to mechanical failures. However, they may not suit high-frequency or remote operation scenarios.

Product Specifications

The manual butterfly valve is designed to meet rigorous industry standards, ensuring durability and performance. Below is a detailed technical specification table:

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 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 the valve to pass easily, with the disc in a half-open position.
  • Avoid using gaskets between flanges.
  • Install bolts with the disc in a half-open position, tightening nuts after verifying pipeline alignment.

Advantages of Manual Butterfly Valves

Manual butterfly valves offer several benefits, making them a preferred choice in many applications:

  • Simple Structure: Fewer components reduce the risk of mechanical failure and lower maintenance costs.
  • Compact Design: Light weight and small size save space, ideal for installations with limited room.
  • Cost-Effective: Lower production and operational costs compared to automated systems.
  • Easy Installation: Straightforward setup procedures minimize downtime during installation.

According to the National Institute of Standards and Technology (NIST), "Standardized components like butterfly valves play a critical role in ensuring interoperability and safety in industrial systems." This aligns with the design philosophy of manual butterfly valves, which prioritize simplicity and reliability.

Applications and Use Cases

Manual butterfly valves are widely used in industries requiring precise flow control. Common applications include:

  • Water Treatment: Regulating water flow in pipelines and reservoirs.
  • Chemical Processing: Controlling the flow of corrosive liquids and gases.
  • HVAC Systems: Managing air and coolant flow in heating and ventilation systems.
  • Power Generation: Controlling steam and water flow in turbines and boilers.

These valves are particularly suited for scenarios where manual intervention is feasible, such as in smaller-scale operations or emergency shutdowns. Their compliance with international standards like API 609 ensures compatibility with global infrastructure.

Company Background: Ningjin Thriveon Valve Co., Ltd.

Ningjin Thriveon Valve Co., Ltd. (河北赢达金属管业有限公司) is a leading manufacturer of industrial valves, specializing in manual butterfly valves and related components. With a focus on quality and innovation, the company has established itself as a trusted supplier in the global market.

Key aspects of the company include:

  • Expertise: Years of experience in valve design, manufacturing, and customization.
  • Quality Assurance: Adherence to international standards and rigorous testing procedures.
  • Customer-Centric Approach: Tailored solutions to meet diverse client requirements.

For more information about the company, visit their official website.

Conclusion

Manual butterfly valves are a reliable and cost-effective solution for fluid control in various industries. Their simple design, ease of installation, and compliance with global standards make them a versatile choice. Ningjin Thriveon Valve Co., Ltd. continues to lead in providing high-quality valves that meet the evolving needs of modern industries.

For detailed product information, explore the manual butterfly valve page or contact the company directly.

References

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

2. Manual Butterfly Valve Product Page

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Manual Butterfly Valve-Ningjin Thriveon Valve Co., Ltd.|Simple Design&Cost-Effective


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