Butterfly valve large production superior quality supplier nafa-South valve CO., LTD.-Trusted industrial valve manufacturer api, iso, ce certified south valve technology

Product Section

Certified Butterfly Valve Manufactur

Mainly Types of Butterfly Valve

Our butterfly valves are designed for versatility and ease of use in a wide range of applications.
Special Types of Butterfly Valve

Known for their compact design and simple operation, these valves are ideal for use in large diameter piping systems for water treatment, HVAC systems, and industrial fluid handling.

Certifications

We offer concentric and eccentric designs, as well as high performance Butterfly Valves for demanding conditions. Our Butterfly Valves are API6D, CE, SIL, ISO and GOST certified to provide reliable fluid control solutions with minimal maintenance requirements.

API
CE
SIL
TS
ISO
GOST
EAC

What is an Industrial Butterfly Valve?

Butterfly valve is a simple design and easy to operate industrial valve, widely used in the need for rapid opening and closing of pipe systems. The core component of the butterfly valve is a disc-shaped butterfly plate that controls the flow of fluid by rotating around a central axis. When the butterfly plate is parallel to the direction of the fluid, the fluid can pass freely. When the disc is rotated perpendicular to the direction of the fluid, the flow of the fluid is completely blocked. Butterfly valves are compact and lightweight, making them ideal for large diameter piping systems such as water treatment and HVAC systems. Butterfly valves can be operated manually or equipped with actuators for automated control and are ideal for industrial fluid control.

Characteristics of Valve Use

Quick opening and closing

The butterfly valve can be switched on and off by rotating 90 degrees, which is easy and fast to operate, and is ideal for systems that require frequent opening and closing, such as water treatment and HVAC systems.
Small size and light weight

The design of butterfly valves makes them small and lightweight, ideal for installation of limited space piping systems, and easy to maintain and replace.
Two-way seal

Butterfly valves usually have a two-way seal function, allowing fluid to pass from any direction and maintain good sealing performance, suitable for two-way flow of pipelines.
Low flow resistance

When the butterfly valve is opened, the butterfly plate is parallel to the direction of the fluid, and the fluid resistance is small, which is suitable for large flow applications in large diameter pipelines.

About The Key Parts of The Butterfly Valve

01

Valve Body

The valve body of a butterfly valve is usually thin-walled, lightweight and compact, suitable for installation in pipeline systems with limited space. The valve body is usually made of cast iron or stainless steel and can withstand medium and low pressure conditions.
02

Valve Disc

The disc is the core component for controlling fluid flow. It is in the shape of a disc and rotates to open and close the valve. The disc is precisely designed to ensure fluid control when opening or closing.
03

Valve Seat

The valve seat is the sealing surface between the disc and the valve body, usually made of elastic material or metal. The valve seat can provide good sealing and reduce the risk of leakage when the fluid passes through.
04

Valve stem

The valve stem connects the disc and the handle or actuator, and drives the disc to open and close by rotating. The valve stem is usually made of high-strength materials to ensure durability in frequent operations.
05

Operation

The operation of the butterfly valve can be achieved by manual operation (using a handle or lever) or automatic operation by an electric or pneumatic actuator. Manual operation is suitable for simple applications, while automatic operation is suitable for complex conditions or remote control.

Industrial Valve