Customization: | Available |
---|---|
Media: | Gas |
Temperature: | Ordinary Temperature |
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Selling Units: Single ItemSpecification
Technical data |
Port Dimension : 1/4'' ,3/8'' |
Flow coefficient :Cv=0.27 |
Internal diameter (id) : 0.16in.(4.1mm) |
Maximum working pressure |
Pneumatic diaphragm valve: 10bar(150psig) |
Pneumatic actuator working pressure :4.2~6.2bar(60~90psig) |
Working temperature |
PCTFE:-23~65ºC(-10~150°F) |
PFA:-23~150ºC (-10~302°F) |
Leakage rate (Helium) |
Inside : ≤1×10^-9 mbar.l/s |
Outside : ≤1×10^-9 mbar.l/s |
Clean process |
BA : Welded joints are cleaned in accordance with our standard cleaning and packaging specifications. |
EP : Provides controlled surface finish, electrolytic polishing Ra0.13μm, ultrasonic cleaning with deionized water. To order, add the suffix -EP to the order number |
Metal to metal seal provides leak-free service in vacuum to high pressure range |
Small internal volume, can completely purge the flow path |
Fully wrapped seat design, with superior anti-expansion and anti-pollution capabilities |
Nickel-cobalt alloy diaphragm for higher durability and corrosion resistance |
The standard roughness is Ra0.25μm(BA class) or electrolytically polished Ra0.13μm(EP class) |
Helium test leakage rate <1×10^-9 mbar.l/s |
Pneumatic executor s are available |
Pneumatic valve life up to 3 million times |
FAQ
Working Principle:
The diaphragm valve, a marvel of engineering, acts as a cut-off valve by utilizing a diaphragm to control the flow, effectively sealing and isolating the valve body from the valve cover cavity. Constructed from materials such as rubber and plastic, known for their elasticity, corrosion resistance, and impermeability, the valve body is crafted from durable materials like plastic, glass fiber-reinforced plastic, ceramics, or metals. This straightforward yet ingenious design offers excellent sealing capability, exceptional resistance to corrosion, and minimal fluid resistance. Available in manual, pneumatic, and electric models, it stands as a paragon of versatility and efficiency.
Our Advantages
Thanks to its innovative design and exceptional working principle, Wofly's pneumatic diaphragm valve stands out for its unparalleled advantages in various areas, including efficiency, reliability, and superior performance.
Efficient sealing performance | Pneumatic diaphragm valve uses soft and corrosion-resistant diaphragm as the valve closing part. This design can provide excellent sealing effect and effectively prevent medium leakage. |
Strong corrosion resistance | Diaphragm materials choose PFA, PTFE materials with high corrosion resistance which make it suitable for treating strong acid, strong alkali and other corrosive media. |
Simple maintenance | The structure is relatively simple, and there is no packing device, which reduces the potential leakage points. In addition, it has low maintenance requirements, is easy to disassemble and clean, and is especially suitable for occasions requiring frequent cleaning. |
Accurate control | By controlling the valve opening through the pneumatic actuator, the accurate adjustment of flow can be realized. The response speed is fast, and it can quickly adapt to the change of process parameters. |
Wide application range | Can be applied to various industries, including chemical industry, pharmacy, food processing and other fields. It is especially suitable for treating media containing particles or viscosity. |
Good security | Because of the pneumatic driving mode, the potential safety hazards caused by electrical components are avoided, especially in flammable and explosive environments. |