Manual Butterfly Valve - Ningjin Thriveon Valve Co., Ltd. | Features, Applications

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. Manual butterfly valve systems are widely used across various industries due to their simplicity, durability, and ease of maintenance.

Key Features and Advantages

One of the primary advantages of manual butterfly valve is its simple structure. Unlike pneumatic or electric actuators, manual valves do not require complex mechanisms, reducing the likelihood of mechanical failure. This simplicity translates to lower maintenance costs and easier installation. Additionally, manual butterfly valves are lightweight and compact, making them suitable for installations with limited space.

The manual operated butterfly valve is also known for its versatility. It can be configured with different materials to suit various operating conditions, from corrosive environments to high-pressure systems. The valve's disc, stem, and seat are constructed from materials such as stainless steel, ductile cast iron, and EPDM, ensuring compatibility with a wide range of fluids and gases.

Technical Specifications

Component	Materials
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 Ratings	CLASS 125/150, PN10/16/25, 5K/10K/16K

Installation and Maintenance

Proper installation is crucial for the optimal performance of a manual wafer butterfly valve DN150. The installation process involves aligning the flanges to allow the valve to pass easily, avoiding the use of gaskets between flanges, and ensuring that the disc is in a half-opened position during assembly. After tightening the bolts, the valve should be fully opened to verify pipeline alignment.

Maintenance of manual butterfly valves is straightforward. Regular inspections of the disc, stem, and seat for wear or corrosion are recommended. Lubrication of moving parts and checking for leaks can extend the valve's lifespan and ensure consistent performance.

Applications and Industry Standards

Manual butterfly valves are used in a variety of applications, including water treatment, HVAC systems, and chemical processing. They comply with international standards such as API 609, BS5155, MSS SP-67/68, and EN593, ensuring their reliability and compatibility with global systems.

Company Background: Ningjin Thriveon Valve Co., Ltd.

As a leading manual butterfly valve manufacturer, Ningjin Thriveon Valve Co., Ltd. specializes in producing high-quality valves tailored to diverse industrial needs. With a commitment to innovation and precision, the company adheres to strict quality control measures, ensuring that its products meet international standards. Their expertise in valve technology has made them a trusted partner for industries worldwide.

Frequently Asked Questions (FAQ)

Q: What is a Manual Butterfly Valve?

A: A manual butterfly valve is a type of valve operated manually using a lever or gear mechanism. It is commonly used in applications where automated control is unnecessary.

Q: What are the Advantages of Manual Butterfly Valves?

A: Manual butterfly valves offer a simple structure, ease of installation, and lightweight design. They are also cost-effective and require minimal maintenance.

Conclusion

Manual butterfly valves are a reliable and efficient solution for fluid control systems. Their simplicity, durability, and compliance with industry standards make them a preferred choice across various sectors. For more information about manual butterfly valve manufacturers or specific product details, visit Ningjin Thriveon Valve Co., Ltd..

References

National Institute of Standards and Technology (NIST) provides critical standards and research that support industries in maintaining precision and reliability in their operations. For further details, visit NIST's official website.