Manual Butterfly Valve - Ningjin Thriveon Valve | Manual Operation, Simple Structure

Introduction

The Manual Butterfly Valve is a critical component in fluid control systems, offering a reliable and cost-effective solution for regulating flow in pipelines. This article delves into its functionality, technical specifications, applications, and advantages, supported by insights from authoritative sources.

How Manual Butterfly Valves Work

Manual butterfly valves are operated manually using levers, gears, or chains. Unlike pneumatic or electric actuators, they rely on direct human input, making them simple in design and maintenance. Learn more about manual operation.

Technical Specifications

Material	Grey Cast Iron, Ductile Cast Iron, Stainless Steel 304/316, Carbon Steel
Pressure Ratings	CLASS 125/150, PN10/16/25, 5K/10K/16K
Standards	API 609, BS5155, EN593

Installation Guidelines

1. Space flanges to allow valve passage with the disc in a half-open position.
2. Avoid using gaskets between flanges.
3. Tighten nuts after fully opening the valve to ensure alignment.

Advantages

• Simple structure and lightweight design
• Cost-effective for low-complexity systems
• Easy to maintain and repair

Applications

Manual butterfly valves are widely used in NIST-certified systems for water treatment, HVAC, and chemical processing. Their durability and adaptability make them ideal for industrial environments.

About Ningjin Thriveon Valve Co., Ltd.

As a leading manual butterfly valve manufacturer, Ningjin Thriveon Valve Co., Ltd. specializes in high-quality valves meeting global standards. Their products are trusted in industries worldwide.

References

1. National Institute of Standards and Technology (NIST) – Industrial valve standards.

2. API 609 – Butterfly Valve Standards.