Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

SMC High-Purity Pneumatically-Actuated Diaphragm Valve, LVQ31-Z11R - High-Purity Pneumatically-Actuated Diaphragm Valves
SMCHigh-Purity Pneumatically-Actuated Diaphragm Valves

SMC High-Purity Pneumatically-Actuated Diaphragm Valve, LVQ31-Z11R

The SMC Chemical Liquid Valve (MPN LVQ31-Z11R) is a 3/8 in high-purity pneumatically-actuated diaphragm valve with an Air to Spring actuator operation and a Fail Open fail-safe position. This PFA valve features a 1/8…

SKU 3G-OTH-449919

Also listed as: LVQ31Z11R · LVQ31 Z11R

Brand
SMC
Item
High-Purity Pneumatically-Actuated Diaphragm Valve, LVQ31-Z11R
Category
High-Purity Pneumatically-Actuated Diaphragm Valves
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SMC
Manufacturer Part Number
LVQ31-Z11R
Type
Air to Spring, Fail Open, PFA, 0°C to 60°C
BSPT
1/8 in
Actuator Operation
Air to Spring
Fail Safe Position
Fail Open

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

SMC Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SMC Chemical Liquid Valve (MPN LVQ31-Z11R) is a 3/8 in high-purity pneumatically-actuated diaphragm valve with an Air to Spring actuator operation and a Fail Open fail-safe position. This PFA valve features a 1/8 in BSPT connection and operates within a temperature range of 0°C to 60°C.

Frequently Asked Questions

What is the SMC LVQ31-Z11R chemical liquid valve used for?

The SMC LVQ31-Z11R is a high-purity pneumatically-actuated diaphragm valve designed for controlling chemical liquids in semiconductor, pharmaceutical, and industrial processing applications. Its PFA body and Fail Open fail-safe position ensure safe shutoff on loss of air pressure, protecting sensitive processes from contamination.

What are the specifications of the SMC LVQ31-Z11R valve?

The SMC LVQ31-Z11R is a 3/8 in high-purity diaphragm valve with Air to Spring actuator operation and a Fail Open fail-safe position. It has a PFA body, a 1/8 in BSPT connection, and operates from 0°C to 60°C. The manufacturer part number is LVQ31-Z11R.

Where to buy the SMC LVQ31-Z11R valve worldwide?

You can source the SMC LVQ31-Z11R valve through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this SMC high-purity diaphragm valve.

How to install the SMC LVQ31-Z11R valve?

Install the SMC LVQ31-Z11R valve by ensuring the piping is clean and the 1/8 in BSPT connection is properly sealed. Mount the valve in a position that allows the diaphragm to operate freely. Apply air pressure to the actuator for normal operation; on loss of air, the valve fails open. Follow SMC's generic guidelines for pneumatically-actuated diaphragm valves.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Pneumatically-actuated diaphragm valve with PFA body, 1/8 in BSPT port, and Air to Spring actuator. Fail Closed position ensures shutoff on loss of air pressure. Temperature range 0°C to 60°C. Used in high-purity fluid handling systems requiring contamination control
SMC
Pneumatically-actuated diaphragm valve with PFA body, 1/8 in BSPT port, and Air to Spring actuator. Fail Closed position ensures shutoff on loss of air pressure. Temperature range 0°C to 60°C. Used in high-purity fluid handling systems requiring contamination control
Pneumatically-actuated diaphragm valve with PFA body, 1/8 in BSPT connections, and air-to-spring actuator. Fail closed position ensures shutoff on loss of air pressure. Rated for 0°C to 60°C. Suitable for controlling high-purity chemical liquids in processing applications
SMC
Pneumatically-actuated diaphragm valve with PFA body, 1/8 in BSPT connections, and air-to-spring actuator. Fail closed position ensures shutoff on loss of air pressure. Rated for 0°C to 60°C. Suitable for controlling high-purity chemical liquids in processing applications
SMC Chemical Liquid Valve: 1/4 in, Air to Spring, Fail Closed, PFA, 1/8 in BSPT, 0°C to 60°C (MPN LVQ20-Z07R-9)
SMC
SMC Chemical Liquid Valve: 1/4 in, Air to Spring, Fail Closed, PFA, 1/8 in BSPT, 0°C to 60°C (MPN LVQ20-Z07R-9)
SMC Chemical Liquid Valve: 3/4 in, Air to Spring, Fail Closed, PFA, 1/8 in NPT, 0°C to 60°C (MPN LVQ50-Z19N-9)
SMC
SMC Chemical Liquid Valve: 3/4 in, Air to Spring, Fail Closed, PFA, 1/8 in NPT, 0°C to 60°C (MPN LVQ50-Z19N-9)
Pneumatically-actuated diaphragm valve with PFA body, 1/8 in NPT port, and air-to-spring fail-closed operation. Suitable for controlling corrosive or high-purity fluids in process systems. Operating temperature range 0°C to 60°C
SMC
Pneumatically-actuated diaphragm valve with PFA body, 1/8 in NPT port, and air-to-spring fail-closed operation. Suitable for controlling corrosive or high-purity fluids in process systems. Operating temperature range 0°C to 60°C
Pneumatically-actuated diaphragm valve with 1/4 in NPT ports, PFA body, and Air to Spring actuator operation. Fail-safe position is Fail Last. Temperature range 0°C to 60°C. Used for precise flow control in high-purity fluid handling systems
SMC
Pneumatically-actuated diaphragm valve with 1/4 in NPT ports, PFA body, and Air to Spring actuator operation. Fail-safe position is Fail Last. Temperature range 0°C to 60°C. Used for precise flow control in high-purity fluid handling systems

More from SMC

View all SMC parts
Pneumatically-actuated diaphragm valve with Air to Spring operation and Fail Closed fail-safe position. Constructed from PFA with 1/8 in NPT connection. Operating temperature range 0°C to 60°C. Suitable for controlling aggressive chemical liquids in high-purity fluid handling systems
SMC
Pneumatically-actuated diaphragm valve with Air to Spring operation and Fail Closed fail-safe position. Constructed from PFA with 1/8 in NPT connection. Operating temperature range 0°C to 60°C. Suitable for controlling aggressive chemical liquids in high-purity fluid handling systems
This pneumatically-actuated diaphragm valve features a PFA body for corrosion resistance in high-purity fluid handling. With 1/2-inch NPT connections, Air to Air actuator operation, and a Fail Closed fail-safe position, it is configured as Normally Closed (NC). Suitable for controlling aggressive chemicals in processing applications
SMC
This pneumatically-actuated diaphragm valve features a PFA body for corrosion resistance in high-purity fluid handling. With 1/2-inch NPT connections, Air to Air actuator operation, and a Fail Closed fail-safe position, it is configured as Normally Closed (NC). Suitable for controlling aggressive chemicals in processing applications
This pneumatically-actuated diaphragm valve features a polyphenylene sulfide body and a 1/4 in NPT connection. It operates with air-to-air actuation and has a fail-open fail-safe position, ensuring the valve opens upon loss of actuation pressure. Suitable for controlling high-purity chemical liquids in processing applications
SMC
This pneumatically-actuated diaphragm valve features a polyphenylene sulfide body and a 1/4 in NPT connection. It operates with air-to-air actuation and has a fail-open fail-safe position, ensuring the valve opens upon loss of actuation pressure. Suitable for controlling high-purity chemical liquids in processing applications
This pneumatically-actuated diaphragm valve features a PFA body with 1/4 in NPT ports. It operates with Air to Air actuation and is Fail Closed on loss of air pressure. Suitable for controlling chemical liquids in applications requiring corrosion resistance, with a temperature range of 0°C to 60°C
SMC
This pneumatically-actuated diaphragm valve features a PFA body with 1/4 in NPT ports. It operates with Air to Air actuation and is Fail Closed on loss of air pressure. Suitable for controlling chemical liquids in applications requiring corrosion resistance, with a temperature range of 0°C to 60°C
This pneumatically-actuated diaphragm valve features an air-to-spring actuator with fail-closed operation, ensuring automatic shutoff upon loss of air supply. Constructed with a PFA body, it is suited for high-purity chemical liquid control in processing systems. The valve has a 1/8 in NPT connection and operates within a temperature range of 0°C to 60°C
SMC
This pneumatically-actuated diaphragm valve features an air-to-spring actuator with fail-closed operation, ensuring automatic shutoff upon loss of air supply. Constructed with a PFA body, it is suited for high-purity chemical liquid control in processing systems. The valve has a 1/8 in NPT connection and operates within a temperature range of 0°C to 60°C
This pneumatically-actuated diaphragm valve features a 3/8 in NPT connection and is constructed from PFA for high-purity chemical resistance. It operates with air-to-air actuation and is normally closed, with a fail-closed safe position. Suitable for applications requiring precise flow control and contamination prevention in fluid handling systems
SMC
This pneumatically-actuated diaphragm valve features a 3/8 in NPT connection and is constructed from PFA for high-purity chemical resistance. It operates with air-to-air actuation and is normally closed, with a fail-closed safe position. Suitable for applications requiring precise flow control and contamination prevention in fluid handling systems
This pneumatically-actuated diaphragm valve features a stainless steel body with 3/8 in NPT ports. It operates with Air to Air actuation and a Fail Closed fail-safe position, suitable for temperature ranges from 0°C to 60°C. Typical applications include controlling chemical liquids in industrial processes requiring contamination-free fluid handling
SMC
This pneumatically-actuated diaphragm valve features a stainless steel body with 3/8 in NPT ports. It operates with Air to Air actuation and a Fail Closed fail-safe position, suitable for temperature ranges from 0°C to 60°C. Typical applications include controlling chemical liquids in industrial processes requiring contamination-free fluid handling
This pneumatically-actuated diaphragm valve features a PFA body and an air-to-spring actuator with fail-closed operation. It has a 1/8 in BSPT connection and operates within 0°C to 60°C. Suitable for high-purity or corrosive fluid handling in process systems requiring leak-tight shutoff
SMC
This pneumatically-actuated diaphragm valve features a PFA body and an air-to-spring actuator with fail-closed operation. It has a 1/8 in BSPT connection and operates within 0°C to 60°C. Suitable for high-purity or corrosive fluid handling in process systems requiring leak-tight shutoff