The wafer-type high-performance butterfly valve is a new type of butterfly valve designed by absorbing the advantages of several butterfly valve structures. The valve plate sealing surface of this butterfly valve is a spherical arc surface, and the sealing mechanism achieves a true dynamic seal through system pressure, thus exhibiting excellent shut-off performance and durability. It is small in size, lightweight, widely manufactured, and easy to maintain.
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High performance wafer butterfly valve Technical parameters
Nominal Diameter: DN50~600mm NPS 2"~24"
Nominal Pressure: PN2.5~40 Class 150~300Lb
Applicable Temperature: 150°C
Connection Method: Clamp-on, Lug-on, Flange, etc.
Drive Method: Handle, Worm Gear Drive, Electric, Pneumatic, etc.
Main Material: Carbon Steel, Austenitic Stainless Steel, Duplex Stainless Steel, Copper Alloy, Titanium Alloy, and various special materials
High performance wafer butterfly valve drawning
High performance wafer butterfly valve Structural Features
Clip-on Installation: The valve is directly clamped between two pipe flanges using double-ended bolts, eliminating the need for separate flange assemblies. This reduces installation space requirements, making it particularly suitable for scenarios with limited space or short pipe spacing (e.g., in a chemical plant valve replacement case, installation time can be reduced by 40%).
Eccentric Design
Double eccentric structure: reduces valve seat wear, lowers peak torque, and extends valve life.
Triple eccentric structure: Through a unique design, the sealing surface is frictionless, achieving the effect of "opening and separating, closing and sealing". It also has an automatic sealing function that tightens as it is closed, significantly improving zero-leakage performance.
Optimized Sealing Structure
Elastic Seal: The sealing ring is embedded around the valve body or butterfly plate, suitable for normal temperature and low pressure conditions, with excellent sealing performance.
Metal seal: Employs metal-to-metal seals (such as stainless steel), resistant to high temperature and pressure, and adaptable to harsh working conditions.
Lip seals: compensate for temperature and pressure changes, reduce maintenance needs, and extend service life.
High performance wafer butterfly valve Performance Advantages
High Durability
The offset stem and eccentric butterfly plate design eliminates valve seat wear, reduces operating torque, and decreases the requirements on the actuator.
The triple eccentric design extends valve life to more than three times that of traditional butterfly valves. Some products have passed fire resistance tests (e.g., API 607 certification).
Flexible Operation
The valve exhibits an equal percentage characteristic curve when the opening angle is 15°-75°, providing a wide control range and maintaining reliable sealing even when used for flow control.
The butterfly plate thickness is the only resistance to media flow, resulting in low pressure drop and excellent flow control characteristics.
Easy Maintenance
The valve seat can be replaced online without disassembling the butterfly plate and stem, resulting in low maintenance costs.
The valve stem is securely installed with a locking ring at the top to prevent it from falling off in case of breakage, ensuring safe operation.
High performance wafer butterfly valve Applications
Industrial Pipeline Control
In industries such as petrochemicals, power generation, and metallurgy, for controlling fluid flow and pressure (e.g., regulating the inlet and outlet of the furnace blower in the sulfuric acid industry, and electrostatic precipitator series valves).
In sulfuric acid production systems, the sulfur combustion, conversion, and dry absorption sections are widely recognized as ideal choices due to their excellent sealing performance, smooth operation, corrosion resistance, and high-temperature resistance.
Building Water Supply and Drainage Systems
Controlling the flow of water, sewage, and other liquids, these systems are easy to install and maintain, making them an important component of building engineering.
Automated Control Systems
Working in conjunction with sensors and actuators, these systems achieve precise control of parameters such as fluid flow, pressure, and temperature (e.g., regulating cooling water flow in automated production lines).
Special Operating Conditions
Suitable for high-temperature, high-pressure, and highly corrosive environments (e.g., as flow diversion, merging, or direction switching devices in pipelines in coal chemical, petrochemical, rubber, papermaking, and pharmaceutical industries).
High performance wafer butterfly valve factory
