Your Professional Butterfly Valve Manufacturer!
SND TECH is a professional manufacturer specializing in manhole covers, gratings, water meter boxes, pipe fittings, valves, and metal casting products with nearly 20 years of experience. The company integrates casting, machining, surface treatment, and assembly, offering comprehensive OEM solutions with an annual production capacity of 20,000 tons. With advanced manufacturing capabilities and strict quality control, SND TECH provides reliable products and customized services for global infrastructure and industrial projects.
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Hydraulically Controlled Slow-closing Check Butterfly ValveThe Hydraulically Controlled Slow-closing Check Butterfly Valve is a high-integrity dual-function pipeline valve integrating check, cut-off and buffer protection. Adopting hydraulic drive and
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Worm Gear Flanged Butterfly ValveHere is a freshly‑rephrased professional version with revised wording and sentence layout for product catalog usage:Fitted with standard raised‑face flange joints, this gear‑driven butterfly valve
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Class 600 24-Inch Triple Eccentric Metal-Seated Butterfly...The 24 Class 600 Triple Eccentric Full Metal Butterfly Valve is engineered for demanding high-temperature and high-pressure applications. Featuring an advanced triple-offset design and a robust
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Industrial Butterfly ValveThis is a flange-connected double eccentric industrial butterfly valve. The double eccentric butterfly valve is a high-performance butterfly valve.
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Stainless Steel Butterfly ValveThis is a triple-eccentric hard-seal stainless steel butterfly valve, large-diameter and high-pressure type. The main body is made of stainless steel, paired with blue drive control components.
Why Choose Us
OEM & Custom Solutions
We will formulate exclusive product solutions combined with production capabilities, and provide design drawings for confirmation to ensure customized products meet project requirements.
Extensive Industry Experience
With nearly 20 years of expertise in metal casting and municipal products, we ensure consistent quality and reliable performance.
High Quality
SND has fully passed the ISO9001 quality management system certification and CE. During the production process, it implements a number of strict detailed standards and conducts full-process quality control.
Advanced Equipment
Our company has well-equipped chemical laboratories and physical performance laboratories. A complete set of testing equipment such as Direct Reading Spectrometer, Metallographic Microscope, Hardness Tester, Universal Material Testing Machine and Pressure test machine can be used to effectively control chemical composition and ensure mechanical performance.
Advantages of Butterfly Valve
Simple Structure
Butterfly valves have a straightforward design, which makes them compact, lightweight, and cost-effective. They are especially suited for large-diameter pipelines where minimizing material usage is essential.
Quick Operation and Low Flow Resistance
Butterfly valves open and close rapidly, typically requiring a 90° rotation of the disc. This allows for efficient operation while maintaining minimal flow resistance.
Versatility with Solid Particles
Butterfly valves can handle fluids with suspended solid particles and, depending on the strength of the sealing surface, can also be used for powdered and granular media.
Bidirectional Flow and Adjustability
Butterfly valves are suitable for bidirectional operation and can also regulate flow in systems such as ventilation and dust removal pipelines. Their widespread applications include industries like metallurgy, light manufacturing, power generation, and petrochemical systems.
Oil and gas industry
The oil and gas industry deals with fluids that are often under high pressure and are volatile. Reliable and efficient flow control is vital to ensure safe operations. Butterfly valves are extensively used in this industry due to their ease of operation and reliable sealing capabilities. They are used in various stages, including extraction, processing, transport, and storage.
Chemical industry
The chemical industry involves the use of a wide range of substances, including both corrosive and non-corrosive fluids. Butterfly valves are a common choice in this industry because they can be designed with materials resistant to chemical corrosion, making them suitable for controlling the flow of such substances.
Water and wastewater treatment plants
Water and wastewater treatment plants handle large volumes of water and require precise flow control for their day-to-day operations. Butterfly valves are used in various stages of water treatment. They control the flow of water into treatment tanks and regulate the release of treated water into the distribution system.
HVAC systems
In heating, ventilation, and air conditioning (HVAC) systems, butterfly valves play a pivotal role in managing the flow of cooling or heating medium (water or air).
Fire protection systems
Fire sprinkler systems are an essential part of any building's safety measures. Butterfly valves are used in these systems to manage the flow of water to the sprinklers. They ensure a quick and efficient water flow when required, contributing significantly to property and life protection during emergencies.

Parameters
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Valve body material |
QT 450/CF8M |
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Applicable media |
Oil,Gas,Water |
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Connection |
Flange |
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Power |
Manual/Electric/Pneumatic |
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Applicable temperature |
High temperature |
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Warranty period |
12 months |
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Support customization |
OEM,OBM,ODM |
Components of a butterfly valve
Valve Body: Completely surrounds all internal components and is attached to the pipeline through flanges or a wafer type connection. The material that can be used is stainless steel, ductile iron or carbon steel depending on the need.
Valve Disc: The component that controls the flow of fluid. Its rotation determines the flow path and provides a high degree of control.
Valve Seat: Provision of a good seal between the disc and the body to ensure that it will not leak at any one time. These are soft seats for low pressure and metal seats for high temperatures and abrasive service.
Shaft: Connects the actuator to the disc to enable it rotate the disc.
Actuation Mechanism: These are the elements that open or close the valve. They are levers, gearboxes or actuators, electrical, pneumatic or hydraulic.
Types of Butterfly Valve
Centric (concentric) butterfly valves
Centric butterfly valves have the shaft positioned in the centre of the body, disc and liner. This design is cost-effective and ideal for low to medium-pressure applications but are not suited for high-pressure applications or operating under high differential pressure.
Double eccentric butterfly valves
The double eccentric valve presents two offsets, reducing friction between the disc and seat. This design enables high-pressure and high-temperature applications. Commonly used in industries such as power generation, water distribution, and steam applications, these valves provide durability on heavy-duty applications.
Triple eccentric butterfly valves
The triple eccentric valve adds a third angular offset, ensuring zero friction between the disc and seat, enabling to zero leakage. These valves are designed for the highest temperature and pressure environments that can be handled with a butterfly valve, making them the best choice for the most critical industrial applications.

PE Packaging: Using PE film to completely wrap palletized goods. Its purpose is to waterproof, dustproof, and secure the goods.
Case Packaging: Box-type packaging, where small/precision products are packed into custom-made cases and stacked together. Suitable for protecting fragile parts.
Container: Container shipping is the most commonly used transport medium in international logistics.
Our company guarantees that the goods will be safely delivered to the customer.
FAQ
We're well-known as one of the leading butterfly valve manufacturers and suppliers in China, also supports customized service. Please feel free to buy discount butterfly valve from our factory. For price consultation, contact us.
Chemical Industry Butterfly Valve, Pneumatic Butterfly Valve, Large Diameter Check Valve