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SMC Chemical Liquid Valve: 1/2 in, Air to Air, Fail Closed, Polyphenylene Sulfide - High-Purity Pneumatically-Actuated Diaphragm Valves
SMCHigh-Purity Pneumatically-Actuated Diaphragm Valves

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

Brand
SMC
Item
Chemical Liquid Valve: 1/2 in, Air to Air, Fail Closed, Polyphenylene Sulfide
Category
High-Purity Pneumatically-Actuated Diaphragm Valves
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Technical Specifications

SMC
Manufacturer Part Number
LVA40-04N-B
Type
Air to Air, Fail Closed, Polyphenylene Sulfide
NPT
1/2 in
Actuator Operation
Air to Air
Fail Safe Position
Fail Closed
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SMC Products
3G Electric (S) Pte. Ltd. — Singapore

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.

Used in

Common applications for SMC
Automotive assembly — SMC ZP3 flat vacuum pads for handling small components in pick-and-place robots
Semiconductor manufacturing — SMC ZM series vacuum generators with needle valves for precise wafer handling
Food packaging — SMC AW-D series filter regulators for clean compressed air in pneumatic actuators
General industrial automation — SMC AS2211F speed control valves for regulating cylinder speeds in conveyor systems
Vacuum conveying — SMC ZH series box-type vacuum generators for material transport in packaging lines
Machine tool coolant systems — SMC ZF series in-line filters to protect vacuum ejectors from debris

SMC 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.

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