Manual Butterfly Valve Manufacturer|Compact Design&Cost-Effective

Introduction

A manual butterfly valve is a critical component in fluid control systems, offering a simple, reliable, and cost-effective solution for regulating flow. This article provides an in-depth analysis of its features, advantages, technical specifications, and applications, along with insights into its manufacturing context.

Key Features and Advantages

Manual butterfly valves are operated manually via levers or gears, making them ideal for applications where automated control is unnecessary. Their simple structure ensures ease of installation, maintenance, and operation. Key advantages include:

• Compact Design: Small footprint and lightweight, saving space in industrial setups.
• Cost-Effective: Lower production and maintenance costs compared to pneumatic or electric actuators.
• Quick Operation: Quarter-turn mechanism allows rapid opening/closing.

Technical Specifications

Parameter	Details
Materials	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 Ratings	CLASS 125/150, PN10/16/25, 5K/10K/16K
Standards	API 609, BS5155, MSS SP-67/68, EN593
Installation Guidelines	Space flanges to allow valve passage with the disc in a half-open position. Avoid gaskets between flanges. Secure bolts without tightening nuts initially; fully open the valve to align the pipeline.

Applications

Manual butterfly valves are widely used in industries such as:

• Water treatment and distribution systems
• Chemical and petrochemical processing
• HVAC (Heating, Ventilation, Air Conditioning)
• Power generation and cooling systems

Company Background

The product is manufactured by Ningjin Thriveon Valve Co., Ltd. (Hebei Yingda Metal Pipe Industry Co., Ltd.), a leading supplier of industrial valves. The company specializes in manual butterfly valves and other fluid control solutions, adhering to international standards for quality and performance.

References and Authority

To ensure credibility, this article incorporates insights from authoritative sources. For example, the National Institute of Standards and Technology (NIST) provides guidelines on fluid control systems and material specifications, which align with the technical details outlined here.

References

• NIST - National Institute of Standards and Technology
• API 609: Butterfly Valves
• BS5155: Specification for Butterfly Valves