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Solenoid Valves

LFV Series 2-Way Isolation Solenoid Valve

This 13 mm, normally closed, bidirectional, chemically inert valve is widely used to reliably control aggressive fluids in diagnostics and analytical instruments. It features a media-separating diaphragm seal, high flow rates, low internal volume, and consistent performance across an extensive cycle life. Each valve is customizable (higher pressure, etc.) and 100% tested to guarantee performance.

Key Product Facts
  • Inert Seal Material Options:FKM, EPDM, & FFKM
  • Low Internal Volume:As low as 11 µL
  • Long Cycle Life:10 M cycles minimum
  • Lohm Rate:1000 – 2000 Lohms (Cv = 0.020 – 0.010)
  • Operating Pressure:Vacuum – 30 psig

Product Information

General Specifications
Characteristic Specification
Operating Pressure Vac - 30 psig
Cycle Life* 10 M Cycles Min
Recommended Filtration 35 Microns or Finer
Response Time** 30 ms Max
Operating Temperature EPDM: 30°F to 120°F (-1°C to 49°C)
FKM: 40°F to 120°F (4°C to 49°C)
FFKM: 70°F to 120°F (21°C to 49°C)
Max Coil Temperature*** 220°F (104°C)
Storage Conditions Temperature: -40°F to 175°F (-40°C to 80°C)
Relative Humidity: 85% Max, Non-Condensing
Weight 24 - 26 grams
*Typical cycle life on water; actual cycle life will vary depending on application conditions.
**Typical response time based on air flow at 10 psig, 2 Hz, 65°F. Response times are application dependent and can be enhanced with the use of high speed drive circuits.
***To ensure solenoid coil temperatures remain within specification, duty cycle limitations may be required. Contact The Lee Company for recommendations specific to your application.
WETTED MATERIALS
Component Material
Port Head PEEK
Diaphragm Seal EPDM, FKM or FFKM
Gasket and O-rings* EPDM, FKM or FFKM
*Gasket and o-ring materials vary by valve model and may differ from diaphragm material. See individual valve inspection drawings for gasket or o-ring material specific to a valve part number.
Flow Curve
Cross Section Views
Dimensional Views
Mounting Details

Part Numbers & Specifications

This table below contains the part numbers and technical specifications for this product. If you have specific questions, need a quote, or would like to request a handbook or drawing, click the red request button in the column on the far right.

Part Numbers & Specifications
Filter Part Numbers
CONFIGURATION
VOLTAGE (Vdc)
SEAL MATERIALS
PART NUMBER
CONFIGURATION
VOLTAGE (Vdc)
OPERATING PRESSURE (PSIG) LOHM RATE* (Cv) POWER CONSUMPTION (W) INTERNAL VOLUME (µL)
SEAL MATERIALS
ELECTRICAL CONNECTION Request Information
LFVA1230213H 1/4-28 Ports 12 Vacuum - 30 1300 Lohms (0.015) 1.5 43 EPDM Lead Wire Request
LFVA2430213H 1/4-28 Ports 24 Vacuum - 30 1300 Lohms (0.015) 1.5 43 EPDM Lead Wire Request
LFVA1231213H 1/4-28 Ports 12 Vacuum - 30 1300 Lohms (0.015) 1.5 43 EPDM Pin Request
LFVA2431213H 1/4-28 Ports 24 Vacuum - 30 1300 Lohms (0.015) 1.5 43 EPDM Pin Request
LFVA1232213H 1/4-28 Ports 12 Vacuum - 30 1300 Lohms (0.015) 1.5 43 EPDM Pin With Locking End Cap Request
LFVA2432213H 1/4-28 Ports 24 Vacuum - 30 1300 Lohms (0.015) 1.5 43 EPDM Pin With Locking End Cap Request
LFVA1230113H 1/4-28 Ports 12 Vacuum - 30 1300 Lohms (0.015) 1.5 43 FKM Lead Wire Request
LFVA2430113H 1/4-28 Ports 24 Vacuum - 30 1300 Lohms (0.015) 1.5 43 FKM Lead Wire Request
LFVA1231113H 1/4-28 Ports 12 Vacuum - 30 1300 Lohms (0.015) 1.5 43 FKM Pin Request
LFVA2431113H 1/4-28 Ports 24 Vacuum - 30 1300 Lohms (0.015) 1.5 43 FKM Pin Request
LFVA1232113H 1/4-28 Ports 12 Vacuum - 30 1300 Lohms (0.015) 1.5 43 FKM Pin With Locking End Cap Request
LFVA2432113H 1/4-28 Ports 24 Vacuum - 30 1300 Lohms (0.015) 1.5 43 FKM Pin With Locking End Cap Request
LFVA1230413H 1/4-28 Ports 12 Vacuum - 30 1300 Lohms (0.015) 1.5 43 FFKM Lead Wire Request
LFVA2430413H 1/4-28 Ports 24 Vacuum - 30 1300 Lohms (0.015) 1.5 43 FFKM Lead Wire Request
LFVA1231413H 1/4-28 Ports 12 Vacuum - 30 1300 Lohms (0.015) 1.5 43 FFKM Pin Request
LFVA2431413H 1/4-28 Ports 24 Vacuum - 30 1300 Lohms (0.015) 1.5 43 FFKM Pin Request
LFVA1232413H 1/4-28 Ports 12 Vacuum - 30 1300 Lohms (0.015) 1.5 11 FFKM Pin With Locking End Cap Request
LFVA2432413H 1/4-28 Ports 24 Vacuum - 30 1300 Lohms (0.015) 1.5 11 FFKM Pin With Locking End Cap Request
LFVA1210220H 062 MINSTAC Ports 12 Vacuum - 30 2000 Lohms (0.010) 1.5 11 EPDM Lead Wire Request
LFVA2410220H 062 MINSTAC Ports 24 Vacuum - 30 2000 Lohms (0.010) 1.5 11 EPDM Lead Wire Request
LFVA1211220H 062 MINSTAC Ports 12 Vacuum - 30 2000 Lohms (0.010) 1.5 11 EPDM Pin Request
LFVA2411220H 062 MINSTAC Ports 24 Vacuum - 30 2000 Lohms (0.010) 1.5 11 EPDM Pin Request
LFVA1212220H 062 MINSTAC Ports 12 Vacuum - 30 2000 Lohms (0.010) 1.5 11 EPDM Pin With Locking End Cap Request
LFVA2412220H 062 MINSTAC Ports 24 Vacuum - 30 2000 Lohms (0.010) 1.5 11 EPDM Pin With Locking End Cap Request
LFVA1210120H 062 MINSTAC Ports 12 Vacuum - 30 2000 Lohms (0.010) 1.5 11 FKM Lead Wire Request
LFVA2410120H 062 MINSTAC Ports 24 Vacuum - 30 2000 Lohms (0.010) 1.5 11 FKM Lead Wire Request
LFVA1211120H 062 MINSTAC Ports 12 Vacuum - 30 2000 Lohms (0.010) 1.5 11 FKM Pin Request
LFVA2411120H 062 MINSTAC Ports 24 Vacuum - 30 2000 Lohms (0.010) 1.5 11 FKM Pin Request
LFVA1212120H 062 MINSTAC Ports 12 Vacuum - 30 2000 Lohms (0.010) 1.5 11 FKM Pin With Locking End Cap Request
LFVA2412120H 062 MINSTAC Ports 24 Vacuum - 30 2000 Lohms (0.010) 1.5 11 FKM Pin With Locking End Cap Request
LFVA1210420H 062 MINSTAC Ports 12 Vacuum - 30 2000 Lohms (0.010) 1.5 11 FFKM Lead Wire Request
LFVA2410420H 062 MINSTAC Ports 24 Vacuum - 30 2000 Lohms (0.010) 1.5 11 FFKM Lead Wire Request
LFVA1211420H 062 MINSTAC Ports 12 Vacuum - 30 2000 Lohms (0.010) 1.5 11 FFKM Pin Request
LFVA2411420H 062 MINSTAC Ports 24 Vacuum - 30 2000 Lohms (0.010) 1.5 11 FFKM Pin Request
LFVA1212420H 062 MINSTAC Ports 12 Vacuum - 30 2000 Lohms (0.010) 1.5 11 FFKM Pin With Locking End Cap Request
LFVA2412420H 062 MINSTAC Ports 24 Vacuum - 30 2000 Lohms (0.010) 1.5 11 FFKM Pin With Locking End Cap Request
LFVA1258210H** Flange - Manifold Mount 12 Vacuum - 30 1250 Lohms (0.016) 1.5 21 EPDM Pin Request
LFVA2458210H** Flange - Manifold Mount 24 Vacuum - 30 1250 Lohms (0.016) 1.5 21 EPDM Pin Request
LFVA1258110H** Flange - Manifold Mount 12 Vacuum - 30 1250 Lohms (0.016) 1.5 21 FKM Pin Request
LFVA2458110H** Flange - Manifold Mount 24 Vacuum - 30 1250 Lohms (0.016) 1.5 21 FKM Pin Request
LFVA1250410H Flange - Manifold Mount 12 Vacuum - 30 1000 Lohms (0.020) 1.4 21 FFKM Lead Wire Request
LFVA2450410H Flange - Manifold Mount 24 Vacuum - 30 1000 Lohms (0.020) 1.4 21 FFKM Lead Wire Request
LFVA1252410H Flange - Manifold Mount 12 Vacuum - 30 1000 Lohms (0.020) 1.4 21 FFKM Pin With Locking End Cap Request
LFVA2452410H Flange - Manifold Mount 24 Vacuum - 30 1000 Lohms (0.020) 1.4 21 FFKM Pin With Locking End Cap Request
LFVA1228210H Barbed Ports 12 Vacuum - 30 1250 Lohms (0.016) 1.5 43 EPDM Pin Request
LFVA2428210H Barbed Ports 24 Vacuum - 30 1250 Lohms (0.016) 1.5 43 EPDM Pin Request
LFVA1228110H Barbed Ports 12 Vacuum - 30 1250 Lohms (0.016) 1.5 43 FKM Pin Request
LFVA2428110H Barbed Ports 24 Vacuum - 30 1250 Lohms (0.016) 1.5 43 FKM Pin Request
LFVA1220410H Barbed Ports 12 Vacuum - 30 1000 Lohms (0.020) 1.5 43 FFKM Lead Wire Request
LFVA2420410H Barbed Ports 24 Vacuum - 30 1000 Lohms (0.020) 1.5 43 FFKM Lead Wire Request
LFVA1222410H Barbed Ports 12 Vacuum - 30 1000 Lohms (0.020) 1.5 43 FFKM Pin With Locking End Cap Request
LFVA2422410H Barbed Ports 24 Vacuum - 30 1000 Lohms (0.020) 1.5 43 FFKM Pin With Locking End Cap Request
LFVA1248210H** Coupling Screw - Manifold Mount 12 Vacuum - 30 1250 Lohms (0.016) 1.5 21 EPDM Pin Request
LFVA2448210H** Coupling Screw - Manifold Mount 24 Vacuum - 30 1250 Lohms (0.016) 1.5 21 EPDM Pin Request
LFVA1248110H** Coupling Screw - Manifold Mount 12 Vacuum - 30 1250 Lohms (0.016) 1.5 21 FKM Pin Request
LFVA2448110H** Coupling Screw - Manifold Mount 24 Vacuum - 30 1250 Lohms (0.016) 1.5 21 FKM Pin Request
LFVA1240420H Coupling Screw - Manifold Mount 12 Vacuum - 30 2000 Lohms (0.010) 1.5 21 FFKM Lead Wire Request
LFVA2440420H Coupling Screw - Manifold Mount 24 Vacuum - 30 2000 Lohms (0.010) 1.5 21 FFKM Lead Wire Request
LFVA1242420H Coupling Screw - Manifold Mount 12 Vacuum - 30 2000 Lohms (0.010) 1.5 21 FFKM Pin With Locking End Cap Request
LFVA2442420H Coupling Screw - Manifold Mount 24 Vacuum - 30 2000 Lohms (0.010) 1.5 21 FFKM Pin With Locking End Cap Request
Clear Filters
*Reference the flow curve under the product information tab for flow rate at varying pressures.
**Valves sold with 2x O-rings for manifold mounting. All other flange or coupling screw mount valve part numbers are sold with a face seal gasket.

Installation & Accessories

Replacement Parts & Accessories
PART NUMBER DESCRIPTION
LSWX0208050A Flange Mount, Replacement Gasket, FFKM
LHWX0208750A Coupling Screw Mount, Replacement Gasket, FFKM
LSWX0508810A Flange Mount & Coupling Screw Mount, Replacement O-ring, FKM (Blue)
LSWX0508820A Flange Mount & Coupling Screw Mount, Replacement O-ring, EPDM (Purple)
LSWX0504300A Lead Wire Connector, 6" Long
LSWX0606700A Lead Wire Connector, 24" Long
Several standard PEEK and PMMA manifolds are available to ease prototype setup, please contact us for more information. Alternate materials and customized manifold designs are also available upon request.
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Questions?

From plugs to solenoid valves, there’s a vast array of products that The Lee Company can offer. If you’d like to discuss the best solution for your specific application or to learn more about our capabilities, use-cases, or quality standards, contact your local Lee sales engineer.