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Manual Butterfly Valve-Ningjin Thriveon|Simple Design&Cost-Effective

Jul . 30, 2025 07:40

Manual Butterfly Valve-Ningjin Thriveon|Simple Design&Cost-Effective

Introduction to Manual Butterfly Valves

Manual butterfly valves are essential components in industrial piping systems, offering a reliable and cost-effective solution for controlling fluid flow. Unlike automated systems that rely on actuators, manual butterfly valves are operated by hand, making them ideal for applications where simplicity and ease of maintenance are prioritized. This article explores the key features, advantages, technical specifications, and applications of manual butterfly valves, with a focus on their role in modern industrial systems.

Key Features and Advantages

Manual butterfly valves are characterized by their **simple structure**, **lightweight design**, and **ease of installation**. These valves are typically operated using a lever or gear mechanism, allowing for quick and straightforward control of fluid flow. One of the primary advantages of manual butterfly valves is their **cost-effectiveness**, as they eliminate the need for complex actuation systems. Additionally, their **compact size** makes them suitable for applications with limited space.

Compared to pneumatic or electric actuators, manual butterfly valves are **less prone to mechanical failure** and require minimal maintenance. This makes them a preferred choice in environments where reliability is critical. The **versatile material options** available for manual butterfly valves further enhance their adaptability to different operating conditions, including varying temperatures and pressures.

Technical Specifications

The technical specifications of manual butterfly valves are designed to meet industry standards for performance and durability. Below is a detailed overview of the key parameters:

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 Guidelines
  • Space out flanges to ensure the valve passes easily with the disc in a half-open position.
  • Avoid fitting gaskets between flanges.
  • Install bolts with the disc in a half-open position and tighten nuts after verifying pipeline alignment.

Applications and Industry Use Cases

Manual butterfly valves are widely used across various industries due to their **versatility** and **reliability**. Some common applications include:

  • Water Treatment: Controlling flow in municipal water supply and wastewater systems.
  • HVAC Systems: Regulating air and fluid flow in heating, ventilation, and air conditioning systems.
  • Chemical Processing: Managing the flow of corrosive and non-corrosive fluids in chemical plants.
  • Power Generation: Controlling steam and water flow in power plants.
  • Oil and Gas: Managing fluid flow in pipelines and storage facilities.

The adaptability of manual butterfly valves to different materials and pressure ratings ensures their suitability for a wide range of industrial environments. For example, stainless steel valves are often used in **high-temperature** and **corrosive environments**, while carbon steel valves are preferred in **low-pressure** applications.

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 **manual butterfly valves** and other industrial valve solutions. With a focus on **quality, innovation, and customer satisfaction**, the company has established itself as a trusted supplier in the global market. Their product line includes **manual operated butterfly valves**, **manual wafer butterfly valves**, and **manual exhaust butterfly valves**, catering to diverse industrial needs.

As a **manual butterfly valve manufacturer**, Ningjin Thriveon Valve Co., Ltd. adheres to **international standards** such as **API 609** and **EN593**, ensuring that their products meet the highest levels of performance and reliability. The company's commitment to **research and development** has enabled it to offer **customized solutions** for specific applications, further solidifying its reputation in the industry.

For more information about the company's products and services, visit their official website: Ningjin Thriveon Valve Co., Ltd.

Frequently Asked Questions (FAQ)

1. What is a Manual Butterfly Valve?

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 fluids** in a piping system. Gear-operated valves and **lever-operated valves** are common types of manual butterfly valves.

2. What are the Advantages of Manual Butterfly Valves?

Manual butterfly valves offer **simplicity**, **cost-effectiveness**, and **ease of maintenance**. Their **lightweight design** and **compact structure** make them ideal for applications with limited space. Additionally, they require **minimal installation effort** and are **less prone to mechanical failure** compared to automated systems.

Industry Standards and Certifications

Manual butterfly valves are designed to comply with **international standards** to ensure safety, performance, and interoperability. Key standards include:

  • API 609: This standard specifies the requirements for **flanged, wafer, and lug type butterfly valves** used in the petroleum and natural gas industries.
  • EN593: This European standard outlines the **dimensions, ratings, and testing requirements** for butterfly valves.
  • MSS SP-67/68: These standards provide guidelines for **valve construction, materials, and testing** to ensure quality and reliability.

For more information on industry standards, refer to the National Institute of Standards and Technology (NIST), which plays a critical role in developing and maintaining measurement standards for industrial applications.

Conclusion

Manual butterfly valves are a vital component in modern industrial systems, offering a **cost-effective, reliable, and versatile solution** for fluid control. Their **simple design**, **easy installation**, and **compliance with international standards** make them a preferred choice across various industries. With the expertise of manufacturers like **Ningjin Thriveon Valve Co., Ltd.**, these valves continue to meet the evolving demands of industrial applications.

For further details on **manual butterfly valves** and their specifications, visit the official product page: Manual Butterfly Valve.

References

1. National Institute of Standards and Technology (NIST) - Provides critical standards and research for industrial measurements and technologies.

2. Ningjin Thriveon Valve Co., Ltd. - Manufacturer of high-quality manual butterfly valves and industrial solutions.



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