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304 Grade Stainless Steel Butterfly Valve

The 304 Grade Stainless Steel Butterfly Valve is a commonly used valve for opening and closing and regulating flow in pipeline systems, widely applied in industries such as petroleum, chemical, water treatment, power, food, and pharmaceuticals. As one of the core products of Zhongguan Valve Manufacture Co., Ltd., this valve considers various industrial operating conditions in its structural design, sealing methods, and material selection. As a Chinese valve manufacturer/supplier/factory, we primarily use 304 or 316 stainless steel in the production of our 304 or 316 Grade Stainless Steel Butterfly Valve to adapt to different corrosive environments and fluid media. We also offer various connection methods and actuation forms to facilitate selection and installation for different engineering projects.


Detailed Introduction to 304 Grade Stainless Steel Butterfly Valve


I. Product Overview


In industrial pipeline systems, the 304 Grade Stainless Steel Butterfly Valve is mainly used to control the flow of liquid, gas, or steam media. The butterfly valve, which controls opening, closing, and flow regulation via a rotating disc, has a relatively simple structure and occupies little installation space, making it widely used in many piping systems.


Compared to traditional valves, 304 or 316 grade stainless steel butterfly valves offer advantages in weight, installation efficiency, and ease of maintenance, making them particularly suitable for applications requiring frequent opening and closing or rapid flow regulation.


Zhongguan Valve Manufacture Co., Ltd., as a valve manufacturer/supplier/factory in China, provides different sealing materials and actuation methods for our 304 or 316 grade stainless steel butterfly valves to help customers find the most suitable solution for their specific operating conditions.


II. Main Structural Components


The 304 Grade Stainless Steel Butterfly Valve mainly consists of the following core components:


1. Valve Body


The valve body is typically made of 304 or 316 stainless steel, offering good corrosion resistance and suitable for water treatment, chemical, and food industries.


2. Butterfly Disc


The butterfly disc has a disc-like structure and controls the flow rate of the medium in the pipeline through rotation. Depending on the operating environment, stainless steel or other wear-resistant materials can be used.


3. Valve Stem


The valve stem connects the actuator to the butterfly disc, transmitting torque to open or close the valve.


4. Sealing Ring


Common sealing materials include:


Rubber


PTFE


Metal Seal


Different materials are suitable for different temperature and corrosive environments.


5. Actuator


The drive method can be selected according to system requirements:


Manual Handle


Worm Gear


Electric Actuator


Pneumatic Actuator


Hydraulic Actuator


III. Technical Parameters

Item Specification
Product Name 304 Or 316 Grade Stainless Steel Butterfly Valve
Material Stainless Steel 304 / 316
Nominal Diameter DN40 – DN1600
Pressure Rating PN10 / PN16 / PN25
Temperature Range -20℃ – 425℃ (depending on sealing material)
Connection Type Wafer / Lug / Flange / Clamp
Sealing Material Rubber / PTFE / Metal
Operation Manual / Electric / Pneumatic
Standard API / ANSI / ISO / GB/T


IV. Product Features


1. Stainless Steel Material for Multiple Media Adaptability


Made of 304 or 316 grade stainless steel, the 304 or 316 grade stainless steel butterfly valve is suitable for water, mildly corrosive chemical media, and food-grade applications.


2. Compact Structure


The butterfly valve itself has a simple structure and occupies little space, making it suitable for installation in piping systems with limited space.


3. Easy Opening and Closing Operation


The butterfly plate can typically be rotated 90° to complete the opening and closing operation, resulting in high operational efficiency.


4. Optional Triple Eccentric Hard Seal Structure


Some models adopt a triple eccentric metal hard seal structure, which can be used in industrial environments with higher temperatures and pressures.


5. Relatively Convenient Maintenance


The internal structure of the valve is clearly defined, making maintenance and replacement of seals relatively convenient.


V. Application Industries


304 or 316 Grade Stainless Steel Butterfly Valve can be used in multiple industrial sectors, such as:


Water Treatment Industry


Municipal Water Supply Systems


Sewage Treatment Systems


Seawater Desalination Equipment


Chemical and Pharmaceutical Industries


316 stainless steel is suitable for conveying corrosive media.


Food and Beverage Industries


Polished sanitary butterfly valves can be used to meet the requirements of food production environments.


HVAC Systems


Cold Water Circulation Systems


Hot Water Circulation Systems


Marine and Energy Industries


Seawater Systems


Boiler Piping Systems


VI. Installation and Selection Recommendations


When selecting a 304 or 316 Grade Stainless Steel Butterfly Valve, the following aspects should be considered:


1. Media Corrosivity


If the media is highly corrosive, it is recommended to choose 316 or 316L material.


2. Operating Temperature


Different sealing materials have different applicable temperatures; selection should be based on the operating conditions.


3. Pipeline Pressure


Select the appropriate PN rating based on the system pressure.


4. Connection Method


Common connection methods include:


Wafer Type


Lug Type


Flange Type


Welding Type


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