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View Solenoid Valves for
Solenoid Valves

LFR Series 3-Way Isolation Solenoid Valve

This 13 mm chemically inert valve is designed for applications flowing aggressive fluids. Optimized for high flow performance without sacrificing size or reliability, these rocker-style media-separated valves are well-suited for use in diagnostics, sequencing, or other analytical applications to divert fluid to waste. Each valve is customizable and 100% tested to guarantee performance.

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Key Product Facts
  • Inert Seal Material Options:FKM, EPDM, & FFKM
  • High Flow:Great for diverting fluid to waste
  • Long Cycle Life:10 M cycles min
  • Lohm Rate:700 & 1000 Lohms (Cv = 0.029 & 0.020)
  • 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** EPDM/FKM: 30 ms at 68°F (20°C)
FFKM 75 ms at 80°F (27°C)
Operating Temperature EPDM: 30°F to 120°F (-1°C to 49°C)
FKM: 45°F to 120°F (7°C to 49°C)
FFKM: 80°F to 120°F (27°C to 49°C)
Max Coil Temperature*** 200°F (90°C)
Storage Conditions Temperature: -40°F to 175°F (-40°C to 80°C)
Relative Humidity: 85% Max, Non-Condensing
Weight 27 to 31 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. 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 and Gasket FKM, EPDM or FFKM
Flow Curve
*Lohm rating of each valve model is based on air performance. Curves shown above depict empirical data from actual product performance on water.
Cross Section Views
Barbed Port Configuration. The barbed ports of this configuration enable quick and simple connection to 1/16" (1.6 mm) ID soft, flexible tubing, resulting in rapid prototype setup.
Dimensional Views
Barbed port configuration is available with lead wires or with a locking end cap connector. Locking end cap provides secondary retention and is compatible with AMP part number 104257-2 style connectors.
This image is for reference only. All dimensions are in inches [millimeters].
Mounting Details
Manifold Mount Configuration
This image is for reference only. All dimensions are in inches [millimeters].
Reference drawing number LSIX1001600A for complete specifications.

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 MATERIAL
PART NUMBER
CONFIGURATION
VOLTAGE (Vdc)
OPERATING PRESSURE (psig) LOHM RATE* (Cv) INTERNAL VOLUME (µL)
SEAL MATERIAL
ELECTRICAL CONNECTION Request Information
LFRA1220270D Barbed Port 12 Vacuum - 30 700 Lohms (0.029) 150 EPDM Lead Wire Request
LFRA2420270D Barbed Port 24 Vacuum - 30 700 Lohms (0.029) 150 EPDM Lead Wire Request
LFRA1222270D Barbed Port 12 Vacuum - 30 700 Lohms (0.029) 150 EPDM Pin With Locking End Cap Request
LFRA2422270D Barbed Port 24 Vacuum - 30 700 Lohms (0.029) 150 EPDM Pin With Locking End Cap Request
LFRA1220170D Barbed Port 12 Vacuum - 30 700 Lohms (0.029) 150 FKM Lead Wire Request
LFRA2420170D Barbed Port 24 Vacuum - 30 700 Lohms (0.029) 150 FKM Lead Wire Request
LFRA1222170D Barbed Port 12 Vacuum - 30 700 Lohms (0.029) 150 FKM Pin With Locking End Cap Request
LFRA2422170D Barbed Port 24 Vacuum - 30 700 Lohms (0.029) 150 FKM Pin With Locking End Cap Request
LFRA1220370D Barbed Port 12 Vacuum - 30 700 Lohms (0.029) 150 FFKM Lead Wire Request
LFRA2420370D Barbed Port 24 Vacuum - 30 700 Lohms (0.029) 150 FFKM Lead Wire Request
LFRA1222370D Barbed Port 12 Vacuum - 30 700 Lohms (0.029) 150 FFKM Pin With Locking End Cap Request
LFRA2422370D Barbed Port 24 Vacuum - 30 700 Lohms (0.029) 150 FFKM Pin With Locking End Cap Request
LFRA1230210H 1/4-28 Port 12 Vacuum - 30 1000 Lohms (0.020) 180 EPDM Lead Wire Request
LFRA2430210H 1/4-28 Port 24 Vacuum - 30 1000 Lohms (0.020) 180 EPDM Lead Wire Request
LFRA1232210H 1/4-28 Port 12 Vacuum - 30 1000 Lohms (0.020) 180 EPDM Pin With Locking End Cap Request
LFRA2432210H 1/4-28 Port 24 Vacuum - 30 1000 Lohms (0.020) 180 EPDM Pin With Locking End Cap Request
LFRA1230110H 1/4-28 Port 12 Vacuum - 30 1000 Lohms (0.020) 180 FKM Lead Wire Request
LFRA2430110H 1/4-28 Port 24 Vacuum - 30 1000 Lohms (0.020) 180 FKM Lead Wire Request
LFRA1232110H 1/4-28 Port 12 Vacuum - 30 1000 Lohms (0.020) 180 FKM Pin With Locking End Cap Request
LFRA2432110H 1/4-28 Port 24 Vacuum - 30 1000 Lohms (0.020) 180 FKM Pin With Locking End Cap Request
LFRA1230310H 1/4-28 Port 12 Vacuum - 30 1000 Lohms (0.020) 180 FFKM Lead Wire Request
LFRA2430310H 1/4-28 Port 24 Vacuum - 30 1000 Lohms (0.020) 180 FFKM Lead Wire Request
LFRA1232310H 1/4-28 Port 12 Vacuum - 30 1000 Lohms (0.020) 180 FFKM Pin With Locking End Cap Request
LFRA2432310H 1/4-28 Port 24 Vacuum - 30 1000 Lohms (0.020) 180 FFKM Pin With Locking End Cap Request
LFRA1250270D Manifold Mount 12 Vacuum - 30 700 Lohms (0.029) 130 EPDM Lead Wire Request
LFRA2450270D Manifold Mount 24 Vacuum - 30 700 Lohms (0.029) 130 EPDM Lead Wire Request
LFRA1252270D Manifold Mount 12 Vacuum - 30 700 Lohms (0.029) 130 EPDM Pin With Locking End Cap Request
LFRA2452270D Manifold Mount 24 Vacuum - 30 700 Lohms (0.029) 130 EPDM Pin With Locking End Cap Request
LFRA1250170D Manifold Mount 12 Vacuum - 30 700 Lohms (0.029) 130 FKM Lead Wire Request
LFRA2450170D Manifold Mount 24 Vacuum - 30 700 Lohms (0.029) 130 FKM Lead Wire Request
LFRA1252170D Manifold Mount 12 Vacuum - 30 700 Lohms (0.029) 130 FKM Pin With Locking End Cap Request
LFRA2452170D Manifold Mount 24 Vacuum - 30 700 Lohms (0.029) 130 FKM Pin With Locking End Cap Request
LFRA1250370D Manifold Mount 12 Vacuum - 30 700 Lohms (0.029) 130 FFKM Lead Wire Request
LFRA2450370D Manifold Mount 24 Vacuum - 30 700 Lohms (0.029) 130 FFKM Lead Wire Request
LFRA1252370D Manifold Mount 12 Vacuum - 30 700 Lohms (0.029) 130 FFKM Pin With Locking End Cap Request
LFRA2452370D Manifold Mount 24 Vacuum - 30 700 Lohms (0.029) 130 FFKM Pin With Locking End Cap Request
Clear Filters
*Reference the flow curve under the product information tab for flow rate at varying pressures.

Installation & Accessories

Accessories View
3D Rendering of three LFR valves mounted on a 3x standard manifold.
Replacement Parts & Accessories
PART NUMBER DESCRIPTION
LHWX0213420A Mounting Screws, #2 (or 2 mm), 0.438" Long
LHWX0218130A FKM Gasket (Manifold Mount Valve)
LHWX0218130A EPDM Gasket (Manifold Mount Valve)
LSWX0508210A FFKM Gasket (Manifold Mount Valve)
LSMX0501412C* Manifold, 2x, PEEK
LSMX0501413C* Manifold, 3x, PEEK
LSMX0501414C* Manifold, 4x, PEEK
LSMX0501416C* Manifold, 5x, PEEK
Several standard manifolds are available to ease prototype setup, including double valve (2x) manifolds through five (5x) valve positions per manifold. Manifold part numbers include the manifold and mounting screws only. All solenoid valves are sold separately. Alternate materials and customized manifold designs are available upon request.
*Manifold has a shared header line that interconnects the Common Port of each valve. There is an individual 1/4-28 flat bottom connection to each Normally Closed Port and Normally Open Port. PMMA models are not listed but are also readily available.

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The Lee Company has developed the Lohm Laws for defining and measuring resistance to fluid flow. The Lohm is defined such that 1 Lohm will flow 100 GPM of water with a pressure drop of 25 psi at a temperature of 80°F.

Lohms for Liquids Lohms for Gases