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Solenoid Valves

LHD Series 2-Way Control Solenoid Valve

This small (7 mm), 2/2, direct-acting valve is used to control the flow of gases and mild liquids. The valve’s low power, low leakage, and extensive cycle life offer high value at an economical price in a variety of applications, including microfluidic piloting, air-over-gasket fluid displacement, and directing flow to sensors. Available in a wide range of models, this valve can be connected to your system using tubing or manifold mounted with ease in a tight space. Each valve is customizable and 100% tested to ensure performance.

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Key Product Facts
  • Low Power:As low as 310 mW (hold power)
  • Low Leakage:< 50 SµLPM across life
  • Lightweight:2.5 grams
  • Lohm Rate:450 & 1500 Lohms (Cv = 0.044 & 0.013)
  • Operating Pressure:Vacuum – 45 psig, 10 psid

Product Information

General Specifications
Characteristic Specification
Operating Pressure Vacuum - 45 psig; 10 psid Max
Leakage < 50 SµLPM
Cycle Life* 10 M Cycles Min
Recommended Filtration 35 Microns or Finer
Response Time** 10 ms Max
Operating Temperature 40°F to 120°F (4°C to 40°C)
Max Internal Coil Temperature*** 225°F (107°C)
Storage Conditions Temperature: -40°F to 175°F (-40°C to 80°C)
Relative Humidity: 85% Max, Non-Condensing
Weight < 2.5 grams
Internal Volume Plug-In: 26 µl
Face Mount: 45 µl
Ported: 94 µl
Unless otherwise indicated, listed specifications are based on 10 psi air, 70°F.
*Cycle life is dependent on system conditions and may vary by application.
**Response times are application dependent and can be enhanced with the use of high speed drive circuits.
***A spike and hold electrical drive is required for most applications. 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
Housing PBT
Seal Silicone or FKM
Plunger Head* PPS or PPA
Armature/Plunger stop FeCr Alloy
Spring 316 Stainless Steel
Epoxy is also a wetted material on all LHD Series valves.
The O-rings on all plug-in valves are FKM.
*PPS for Valves With a Silicone Seal, PPA for FKM Valves
Flow Curve
Flow Characteristics on Air at 70°F (21°C)
Cross Section Views
Face Mount Configuration
Dimensional Views
Plug-In Configuration
This image is for reference only. All dimensions are in inches [millimeters].
Mounting Details
Plug-In Configuration
This image is for reference only. All dimensions are in inches [millimeters].
Reference drawing number LCFX0300250B for complete specifications. To manufacture this mating boss, we recommend using the TTTA0000250B cutting tool.

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
SEAL MATERIAL
PART NUMBER
CONFIGURATION
SPIKE, HOLD VOLTAGE* (Vdc) LOHM RATE** (Cv) OPERATING PRESSURE:
SUPPLY (psig) 		OPERATING PRESSURE:
MAX DIFFERENTIAL*** (psid) 		POWER CONSUMPTION
AT HOLD VOLTAGE (mW)
SEAL MATERIAL
PLUNGER HEAD MATERIAL Request Information
LHDB0342115H Plug In 3.3, 2 1500 Lohms (0.013) Vacuum - 45 10 310 Silicone PPS Request
LHDB0542115H Plug In 5, 3 1500 Lohms (0.013) Vacuum - 45 10 310 Silicone PPS Request
LHDB1242115H Plug In 12, 7.2 1500 Lohms (0.013) Vacuum - 45 10 310 Silicone PPS Request
LHDB0442145D Plug In 12, 3.5 450 Lohms (0.044) Vacuum - 45 10 440 Silicone PPS Request
LHDB0442245D Plug In 12, 3.5 450 Lohms (0.044) Vacuum - 45 10 440 FKM PPA Request
LHDB0942145D Plug In 24, 7 450 Lohms (0.044) Vacuum - 45 10 420 Silicone PPS Request
LHDB0942245D Plug In 24, 7 450 Lohms (0.044) Vacuum - 45 10 420 FKM PPA Request
LHDB0352115H Face Mount 3.3, 2 1500 Lohms (0.013) Vacuum - 45 10 310 Silicone PPS Request
LHDB0552115H Face Mount 5, 3 1500 Lohms (0.013) Vacuum - 45 10 310 Silicone PPS Request
LHDB1252115H Face Mount 12, 7.2 1500 Lohms (0.013) Vacuum - 45 10 310 Silicone PPS Request
LHDB1262145D Ported 12, 2.8 450 Lohms (0.044) Vacuum - 45 10 350 Silicone PPS Request
LHDB1262245D Ported 12, 2.8 450 Lohms (0.044) Vacuum - 45 10 350 FKM PPA Request
LHDB2462145D Ported 24, 5.6 450 Lohms (0.044) Vacuum - 45 10 350 Silicone PPS Request
LHDB2462245D Ported 24, 5.6 450 Lohms (0.044) Vacuum - 45 10 350 FKM PPA Request
Clear Filters
Unless otherwise indicated, listed specifications are on air at 70°F (21°C).
*A spike and hold electrical drive is required for most applications. To ensure solenoid coil temperatures remain within specification, duty cycle limitations may be required. Contact The Lee Company for recommendations specific to your application.
**Reference the flow curve under the product information tab for flow rate at varying pressures.
***Max differential pressure across valve ports. Our standard 2-way valves are designed for unidirectional flow, where the highest absolute pressure should be maintained at Port A. Bidirectional and reverse-flow valves (Port B to A) are also available upon request.

Installation & Accessories

Accessories View
3D Rendering of LFMX0527650B with three plug-in valves installed. Please note that valves are not included with the purchase of standard manifolds.
Replacement Parts & Accessories
CONFIGURATION PART NUMBER DESCRIPTION
Plug In LHDX0526900A Boss Plug (POM with FKM O-rings)
Plug In LHWX0218030A Replacement O-ring (FKM)
Plug In LLWX0307140A Retention Bracket, 1x
Plug In LLWX0307130A Retention Bracket, 3x
Plug In LLWX0307120A Retention Bracket, 8x
Plug In LHWX0503010A Screw, Socket Head Cap, 0.086" #2-56 x 0.250" Stainless Steel
Plug In LFMX0524000A* Manifold, 1x, Individual Outlet Ports, PMMA
Plug In LFMX0528200B* Manifold, 1x, Individual Outlet Ports, Aluminum
Plug In LFMX0527650B* Manifold, 3x, Indifivual Ports, Aluminum
Plug In LFMX0527700B* Manifold, 8x, Individual Ports, Aluminum
Plug In LFMX0527750B*,** Manifold, 3x, Port A Inlet Header, Individual Port B Outlet Ports, Aluminum
Plug In LFMX0527800B*,** Manifold, 8x, Port A Inlet Header, Individual Port B Outlet Ports, Aluminum
Face Mount LLWX0218230A Gasket (SI)
Face Mount LLWX0218240A Gasket (FKM)
Face Mount LHDX0307130A Mounting Screw Support Bracket-2x, PBT
Face Mount LHDX0307140A Mounting Screw Support Bracket-1x, PBT
Face Mount LHWX0503100A Screw, Socket Head Cap, 0.086" #2-56 x 0.375" Stainless Steel
Face Mount LHWX0213420A1 Screw, Socket Head Cap, 0.086" #2-56 x 0.438" (7/16") Stainless Steel
Face Mount LFMX0527400B*, ** Manifold, 1x, Individual Outlet Ports, Aluminum
Face Mount LFMX0527450B*, ** Manifold, 3x, Indifivual Ports, Aluminum
Face Mount LFMX0527500B*, ** Manifold, 8x, Individual Ports, Aluminum
Face Mount LFMX0527550B*, ** Manifold, 3x, Port A Inlet Header, Individual Port B Outlet Ports, Aluminum
Face Mount LFMX0527600B*, ** Manifold, 8x, Port A Inlet Header, Individual Port B Outlet Ports, Aluminum
Ported LLWX0360100A Tubing, 3/32" ID, 5/32" OD, 6' Long, Polyurethane
Universal All Styles LHWX0605450A Lead-Wire Connector, 6" Long
*Several standard manifolds are available to ease prototype setup. They are available in mounting denominations of single valve (1x), three valves (3x) and eight valves (8x). Combine these denominations or plug unused ports to configure the setup for your specific application. Manifold part numbers include the manifold and secondary retention bracket only. All solenoid valves are sold separately. Alternate materials and customized manifold designs are available upon request.
**For use only with valves rated to 1100 Lohms or higher.

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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