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Solenoid Valves

LFY Series 2- & 3-Way Isolation Solenoid Valve

This chemically inert internal pinch-tube valve is available in 2-way and 3-way configurations with zero dead volume. Intended for applications flowing aggressive fluids, it features a unique internal pinch-block design which isolates the fluid path and minimizes internal volume. For direct connection to threaded tubing assemblies, chose from our low volume 062 MINSTAC version, or ¼-28 version (both available in FFKM). A threaded manifold mount version of the valve is also available (in FKM). Typical applications include hematology, urinalysis, and flow cytometry.

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Key Product Facts
  • Inert Tube Material Options:FFKM & FKM
  • Zero Dead Volume
  • Low Internal Volume:11 – 72 µL
  • Lohm Rate:1000 Lohms (Cv = 0.02) & 3200 Lohms (Cv = 0.006)
  • Operating Pressure:0-15 & 0-30 psig models

Product Information

General Specifications
Characteristic Specification
Operating Pressure 0 - 30 psig (Manifold Mount)
0 - 15 psig (All Other Models)
Cycle Life 1 5 M Cycles Min
Recommended Filtration 35 Microns or Finer
Response Time 2 50 ms Max
Operating Temperature 60°F to 118°F (16°C to 48°C)
Max Coil Temperature 3 250°F (121°C)
Storage Conditions Temperature: -40°F to 175°F (-40°C to 80°C)
Relative Humidity: 85% Max, Non-Condensing
Weight 40 - 43 grams
1Typical cycle life on water; actual cycle life will vary depending on application conditions.
2Typical 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.
3To ensure solenoid coil temperatures remain within specification, duty cycle limitations may be required. Contact The Lee Company for recommendations specific to your application. 4Models listed in part number table come standard with contact pins. Lead wires or a locking end cap connector are also available upon request.
WETTED MATERIALS
Component Material
Ports PEEK or PPS
Tube FKM 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.
Dimensional Views
2-Way 156 MINSTAC Ports
Fluidic ports compatible with most ¼-28 flat bottom fitting systems.
This image is for reference only. All dimensions are in inches [millimeters].

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
FLUIDIC PORTS
VOLTAGE (Vdc)
WETTED MATERIALS (TUBE/PORTS)
PART NUMBER
FLUIDIC PORTS
MODEL
VOLTAGE (Vdc)
OPERATING PRESSURE (psig) LOHM RATE2 (Cv) POWER CONSUMPTION (W) INTERNAL VOLUME3 (µL)
WETTED MATERIALS (TUBE/PORTS)
Request Information
LFYA1215010H 156 MINSTAC1 3-Way 12 0-15 1000 Lohms (0.02) 2 72 FFKM/PEEK Request
LFYA2415010H 156 MINSTAC1 3-Way 24 0-15 1000 Lohms (0.02) 2 72 FFKM/PEEK Request
LFYA1215210H 156 MINSTAC1 2-Way NO 12 0-15 1000 Lohms (0.02) 2 54 FFKM/PEEK Request
LFYA2415210H 156 MINSTAC1 2-Way NO 24 0-15 1000 Lohms (0.02) 2 54 FFKM/PEEK Request
LFYA1215110H 156 MINSTAC1 2-Way NC 12 0-15 1000 Lohms (0.02) 2 54 FFKM/PEEK Request
LFYA2415110H 156 MINSTAC1 2-Way NC 24 0-15 1000 Lohms (0.02) 2 54 FFKM/PEEK Request
LFYA1218032H 062MINSTAC 3-Way 12 0-15 3200 Lohms (0.006) 1 18 FFKM/PPS Request
LFYA2418032H 062MINSTAC 3-Way 24 0-15 3200 Lohms (0.006) 1 18 FFKM/PPS Request
LFYA1218232H 062MINSTAC 2-Way NO 12 0-15 3200 Lohms (0.006) 1 14 FFKM/PPS Request
LFYA2418232H 062MINSTAC 2-Way NO 24 0-15 3200 Lohms (0.006) 1 14 FFKM/PPS Request
LFYA1218132H 062MINSTAC 2-Way NC 12 0-15 3200 Lohms (0.006) 1 11 FFKM/PPS Request
LFYA2418132H 062MINSTAC 2-Way NC 24 0-15 3200 Lohms (0.006) 1 11 FFKM/PPS Request
LFYA1236032H Manifold Mount 3-Way 12 0-30 3200 Lohms (0.006) 1.5 22 FKM/PPS Request
Clear Filters
1Fluidic ports compatible with most ¼-28 flat bottom fitting systems.
2Nominal Lohm rate on air. Reference the flow curve under the product information tab for typical flow characteristics on water.
3Internal volume per channel. Includes housing and internal elastomeric tubing. The 3x gaskets on external ports are FFKM. For replacement gaskets, use part number LHWX0218040A.

Installation & Accessories

Replacement Parts & Accessories
PART NUMBER DESCRIPTION
LHWX0203760A Panel Nut - Use for Optional Panel Mounting

CAD Envelopes

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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