Manual Butterfly Valve - Ningjin Thriveon Valve | Advantages & Uses

Introduction

Butterfly valves are critical components in fluid control systems, offering efficient flow regulation. Manual Butterfly Valves are a subset of these valves, operated manually via levers or gears. This article explores their features, advantages, technical specifications, and applications.

Key Features and Advantages

• Simple Structure: Manual valves have a straightforward design, reducing maintenance needs.
• Cost-Effective: Compared to pneumatic or electric actuators, manual valves are more affordable.
• Lightweight and Compact: Ideal for space-constrained installations.

Technical Specifications

Material	Grey Cast Iron, Ductile Cast Iron, Stainless Steel 304/316, Carbon Steel
Disc Material	Ductile Cast Iron (Nickel-plated/Nylon coated), Stainless Steel 304/316, Aluminum Bronze
Pressure Ratings	CLASS 125/150, PN10/16/25, 5K/10K/16K
Standards	API 609, BS5155, MSS SP-67/68, EN593

Installation Guidelines

1. Space flanges to allow valve passage with the disc in a half-open position.
2. Avoid gaskets between flanges.
3. Install bolts with the disc half-open; tighten nuts after full opening.

Applications

Manual butterfly valves are widely used in industrial pipelines, water treatment plants, and HVAC systems due to their reliability and ease of use.

Company Background

Manufactured by Ningjin Thriveon Valve Co., Ltd. (Hebei Yingda Metal Pipe Industry Co., Ltd.), these valves adhere to international standards and are trusted in global markets.

References

For further technical insights, refer to NIST (National Institute of Standards and Technology) guidelines on fluid control systems.