Manual Butterfly Valve - Ningjin Thriveon Valve | Manual Operation, Cost-Effective

Butterfly valves are essential components in fluid control systems, offering reliable performance across various industries. Among the different types, Manual Butterfly Valve stands out for its simplicity, cost-effectiveness, and ease of maintenance. This article delves into the features, technical specifications, applications, and company background of manual butterfly valves, providing a comprehensive guide for engineers, technicians, and industry professionals.

Product Overview

Manual Butterfly Valve is a type of quarter-turn valve that regulates flow by rotating a disc within the valve body. Unlike pneumatic or electric actuators, manual valves are operated by hand, making them ideal for applications where automation is unnecessary. These valves are commonly used in water supply systems, HVAC, and industrial piping, offering a balance between functionality and affordability.

Key Features and Advantages

Manual butterfly valves are renowned for their manual operated butterfly valve design, which ensures a compact structure and lightweight construction. Key advantages include:

• Simple Structure: The absence of complex actuation systems reduces maintenance requirements.
• Cost-Effective: Manual valves are generally less expensive than their automated counterparts.
• Easy Installation: Their straightforward design allows for quick and hassle-free setup.
• Reliable Performance: High-quality materials ensure durability under varying conditions.

Technical Specifications

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 Rating	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-opened position. Avoid using gaskets between flanges. Install bolts with the disc in a half-opened position and tighten after verifying pipeline alignment.

Applications

Manual butterfly valves are versatile and find applications in diverse sectors, including:

• Water Treatment: Regulating flow in municipal water supply and wastewater systems.
• HVAC Systems: Controlling air and coolant flow in heating and cooling systems.
• Industrial Piping: Managing fluid flow in chemical, food processing, and pharmaceutical industries.
• Fire Protection: Ensuring proper water distribution in fire suppression systems.

Installation Guide

Proper installation is critical for the optimal performance of manual operated butterfly valve. Follow these steps:

1. Flange Preparation: Ensure flanges are clean and aligned to allow the valve to pass without obstruction.
2. Disc Position: Keep the disc in a half-opened position during installation to prevent damage.
3. Bolt Installation: Insert bolts without tightening them initially. After verifying alignment, secure the nuts.
4. Final Check: Open the valve fully to confirm the pipeline is correctly aligned before final tightening.

Frequently Asked Questions (FAQ)

1. What is a Manual Butterfly Valve?

A manual butterfly valve is a type of valve operated by hand, typically using a lever or gear mechanism. It includes gear-operated valves and lever-operated valves, offering a simple and reliable solution for flow control.

2. What are the Advantages of Manual Butterfly Valves?

These valves are easy to install, have a compact design, and are lightweight. Their simple structure reduces maintenance costs and ensures long-term reliability in various environments.

Company Background

Ningjin Thriveon Valve Co., Ltd., based in Hebei, China, is a leading manufacturer of manual butterfly valve manufacturer and other industrial valves. With a focus on quality and innovation, the company adheres to international standards to deliver durable and efficient solutions. Their product range includes manual wafer butterfly valve DN150 and manual exhaust butterfly valve, catering to global markets.

Conclusion

Manual Butterfly Valves remain a preferred choice for their simplicity, cost-effectiveness, and reliability. Whether used in water treatment, HVAC systems, or industrial applications, these valves offer a robust solution for flow control. As per NIST standards, which emphasize precision and reliability in manufacturing, NIST plays a pivotal role in ensuring that such products meet rigorous quality benchmarks.

References

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