Product classification of Kaiweixi

KAI WEI XI CHAN PIN FEN LEI

D643H Pneumatic Metal-Sealed Butterfly Valve
D641X Pneumatic Flanged Butterfly Valve
D671X Pneumatic Wafer Butterfly Valve
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Pneumatic Butterfly Valve

Pneumatic butterfly valve is an automated execution valve powered by compressed air. Its core lies in combining butterfly valves with pneumatic actuators (such as single acting spring reset and double acting), driving pistons or gear racks through air sources, and driving the valve stem and butterfly plate to rotate from 0 ° to 90 °, achieving rapid cutting, switching, or proportional adjustment of pipeline media. Pneumatic butterfly valves are mainly composed of valve body, butterfly plate, valve seat, valve stem, pneumatic actuator and auxiliary control components (such as solenoid valve, locator, filter pressure reducing valve), and air source triple components. According to sealing requirements, it can be divided into soft seal type (used for normal temperature and pressure sealing) and metal hard seal type (used for high temperature, high pressure, and abrasive media). The soft seal pneumatic butterfly valve, hard seal pneumatic butterfly valve, clamp pneumatic butterfly valve, flange pneumatic butterfly valve, welded pneumatic butterfly valve, stainless steel pneumatic butterfly valve, sanitary pneumatic butterfly valve, quick installation pneumatic butterfly valve and other pneumatic butterfly valves produced by Kaiweixi Valve have significant advantages of fast action (usually only a few seconds for opening and closing) and high safety (essentially explosion-proof). It can be flexibly connected to the automation control system by receiving switch signals or analog control signals, and is a key equipment for emergency shutdown, process adjustment, and remote control.

D643H Pneumatic Metal-Sealed Butterfly Valve

Model：
D643H-10C/D643H-16C/D643H-25C/D643H-10P/D643H-16P/D643H-25P/D643H-10R/D643H-16R/D643H-25R
Specification：
DN50-DN1200
Pressure：
PN10~25
Material：
Cast iron, ductile iron, stainless steel

OverviewThe D643H Pneumatic Hard-Sealed Butterfly Valve is a type of valve that utilizes a metal hard-sealed structure and is driven by compressed air to actuate the disc in a 90° rotary motion, enabling the opening, closing, or regulation of pipeline media. This valve employs a three-dimensional eccentric or multi-eccentric design principle, allowing the disc sealing surface and the valve seat sealing surface to quickly separate and engage during operation, significantly reducing friction and wear. Its transmission mechanism uses the torque output from the pneumatic actuator to drive the valve stem, which precisely rotates the disc within the valve body. Both the valve seat and the disc sealing pair are made of metal materials (such as stainless steel, hard alloys, etc.), processed through specialized techniques to form a high-hardness metal-to-metal seal. The D643H Pneumatic Hard-Sealed Butterfly Valve is particularly suitable for demanding applications involving high temperatures, high pressures, corrosive media, and fluids containing fine solid particles. It is widely used in critical pipelines across industries such as power generation, metallurgy, petrochemicals, and urban heating systems. Product Illustration of D643H Pneumatic Hard Seal Butterfly Valve

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D641X Pneumatic Flanged Butterfly Valve

Model：
D641X-10/D641X-16/D641X-10Q/D641X-16Q/D641X-10C/D641X-16C/D641X-10P/D641X-16P/D641F-10/D641F-16/D641F-10Q/D641F-16Q/D641F-10C/D641F-16C/D641F-10P/D641F-16P
Specification：
DN50-DN2000
Pressure：
PN10~PN16
Material：
Cast iron, ductile iron, stainless steel + rubber lining, fluorine lining

OverviewThe D641X Pneumatic Flanged Butterfly Valve is a type of valve that uses compressed air as the power source. Driven by a pneumatic actuator, the valve disc performs a 90° rotary motion to achieve rapid on-off operation or proportional control of the pipeline medium. This valve utilizes a flanged connection type, securely fastened to the pipeline flange via bolts for reliable connection. Its core transmission mechanism directly transfers the linear or rotary output torque from the pneumatic actuator to the valve stem through connecting components, driving the valve stem and the attached disc to rotate precisely within the valve body cavity. The sealing surface of the disc is typically lined with elastic materials such as rubber, forming an interference fit with the metal or non-metal seat inside the valve body to achieve bi-directional soft sealing. The D641X Pneumatic Butterfly Valve features rapid actuation, convenient control, and high integration capability for remote and automated operations. It is widely used in industrial automation control systems across sectors such as petroleum, chemical, power, metallurgy, and environmental protection.Product Diagram of D641X Pneumatic Flanged Butterfly Valve

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D671X Pneumatic Wafer Butterfly Valve

Model：
D671X-10/D671X-16/D671X-10Q/D671X-16Q/D671X-10C/D671X-16C/D671X-10P/D671X-16P
Specification：
DN50-DN1200
Pressure：
PN10~PN16
Material：
Cast iron, ductile iron, cast steel, stainless steel + rubber lining, fluorine lining

OverviewThe D671X Pneumatic Wafer Butterfly Valve is an automated valve designed for the rapid on/off operation or regulation of pipeline fluid flow. Utilizing compressed air as the power source, it employs a pneumatic actuator to drive a 90-degree rotation of the disc. The valve features a wafer-style connection, where it is directly clamped between two pipeline flanges via bolts on both sides of its body, resulting in a compact installation with minimal spatial footprint. The pneumatic actuator converts air pressure into rotary torque, which precisely drives the valve stem and the connected disc within the valve body. The disc's sealing surface is integrally lined with an elastic material such as rubber, forming a soft seal through an interference fit with the valve body. During the opening and closing process, the disc quickly disengages from and re-engages with the valve seat, enabling highly efficient fluid control. Characterized by fast response, ease of operation, and a high degree of automation, the D671X Pneumatic Wafer Butterfly Valve is widely used in water supply and drainage, fire protection, HVAC systems, and various industrial automation control applications.D671X Pneumatic Wafer Butterfly Valve Product Diagram

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Product classification of Kaiweixi

KAI WEI XI CHAN PIN FEN LEI

D643H Pneumatic Metal-Sealed Butterfly Valve

D641X Pneumatic Flanged Butterfly Valve

D671X Pneumatic Wafer Butterfly Valve

More Butterfly valve>>

More valve>>

Pneumatic Butterfly Valve

D643H Pneumatic Metal-Sealed Butterfly Valve

D641X Pneumatic Flanged Butterfly Valve

D671X Pneumatic Wafer Butterfly Valve