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SMCHigh-Purity Pneumatically-Actuated Diaphragm Valves

SMC Viper Valve: 3/8 in, Air to Spring, Fail Closed, PFA, 1/8 in NPT

The SMC Viper Valve is a high-purity pneumatically-actuated diaphragm valve with a 3/8 in size. It features air-to-spring actuator operation and a fail-closed position, with a PFA body and 1/8 in NPT ports. The valve…

SKU 3G-OTH-449931

Brand
SMC
Item
Viper Valve: 3/8 in, Air to Spring, Fail Closed, PFA, 1/8 in NPT
Category
High-Purity Pneumatically-Actuated Diaphragm Valves
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Technical Specifications

SMC
Manufacturer Part Number
LVQ400-Z11N
Type
Air to Spring, Fail Closed, PFA
NPT
1/8 in
Actuator Operation
Air to Spring
Fail Safe Position
Fail Closed
Coefficient Of Volume
1.9
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SMC Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SMC Viper Valve is a high-purity pneumatically-actuated diaphragm valve with a 3/8 in size. It features air-to-spring actuator operation and a fail-closed position, with a PFA body and 1/8 in NPT ports. The valve has a 1.9 Coefficient of Volume and is identified by manufacturer part number LVQ400-Z11N.

Frequently Asked Questions

What is the SMC Viper Valve used for?

The SMC Viper Valve is a high-purity pneumatically-actuated diaphragm valve used in semiconductor, pharmaceutical, and chemical processing applications. Its PFA body and air-to-spring fail-closed design ensure reliable shutoff in corrosive or ultrapure fluid systems.

What are the specifications of the SMC Viper Valve LVQ400-Z11N?

The SMC Viper Valve LVQ400-Z11N has a 3/8 in size, PFA body, 1/8 in NPT ports, air-to-spring actuator operation, fail-closed position, and a 1.9 Coefficient of Volume. It is a high-purity pneumatically-actuated diaphragm valve from SMC.

Where to buy the SMC Viper Valve worldwide?

3G Electric supplies the SMC Viper Valve LVQ400-Z11N worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install the SMC Viper Valve?

Install the SMC Viper Valve by connecting the 1/8 in NPT ports to your piping, applying the correct air pressure to the air-to-spring actuator, and verifying the fail-closed position. Follow SMC's generic diaphragm valve installation guidelines for torque and alignment.

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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