SMC Chemical Liquid Valve: 1/2 in, Air to Air, Fail Closed, Polyphenylene Sulfide
The SMC Chemical Liquid Valve (SKU 2AC503, MPN LVA40-04N-B) is a high-purity pneumatically-actuated diaphragm valve with a 1/2 in NPT connection and a polyphenylene sulfide body. It features Air to Air actuator…
SKU 3G-OTH-449926
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Product Description
The SMC Chemical Liquid Valve (SKU 2AC503, MPN LVA40-04N-B) is a high-purity pneumatically-actuated diaphragm valve with a 1/2 in NPT connection and a polyphenylene sulfide body. It features Air to Air actuator operation and a Fail Closed fail-safe position, ensuring the valve closes upon loss of actuation pressure.
Frequently Asked Questions
What is the SMC LVA40-04N-B chemical liquid valve used for?
The SMC LVA40-04N-B is a high-purity pneumatically-actuated diaphragm valve used to control chemical liquids in semiconductor, pharmaceutical, and industrial processing. Its polyphenylene sulfide body and 1/2 in NPT connections provide corrosion resistance and reliable shutoff in aggressive fluid applications.
What are the specifications of the SMC LVA40-04N-B valve?
The SMC LVA40-04N-B features a 1/2 in NPT connection, Air to Air actuator operation, and a Fail Closed fail-safe position. The body is made of polyphenylene sulfide. It is a pneumatically-actuated diaphragm valve designed for high-purity chemical liquid service.
Where to buy the SMC LVA40-04N-B valve worldwide?
3G Electric supplies the SMC LVA40-04N-B valve to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source and deliver genuine SMC components for chemical liquid control applications.
How to install the SMC LVA40-04N-B diaphragm valve?
Install the SMC LVA40-04N-B valve in a clean, dry location with proper pipe support. Apply thread sealant to the 1/2 in NPT connections and tighten to manufacturer torque specs. Connect the air supply to the Air to Air actuator and verify the Fail Closed position before pressurizing the system.
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Common applications for SMCSMC Products
3G Electric supplies SMC high-purity pneumatically-actuated diaphragm valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.














