--- title: HDI | The Lee Company description: Discover HDI® Control Solenoid Valves, compact, reliable solutions for medical and diagnostic applications. --- [![TheLeeCo\_logo\_PMS\_185-425](https://info.theleeco.com/hubfs/TheLeeCo_logo_PMS_185-425.svg "TheLeeCo_logo_PMS_185-425")](https://www.theleeco.com/) Open main menu Close main menu # HDI® Control **Solenoid Valves** ![Red-divider-chevron](https://info.theleeco.com/hubfs/Red-divider-chevron.svg "Red-divider-chevron") ###### Highly reliable, remarkably small. Power your innovation with control solenoid valves designed for high-performance applications in molecular diagnostics, oxygen delivery systems, compression therapy, ventilators, environmental monitoring, and advanced breath analysis. [CONTACT A SALES ENGINEER](https://info.theleeco.com/products/hdi-control-solenoid-valves#hdi-contact) ## HDI® – The High Density Interface Platform of Control Solenoid Valves The High Density Interface (HDI) control solenoid valve is a 7 mm compact and lightweight design making it the ideal solution for applications where a large number of valves must be designed into the smallest space possible. Available in [2-port](https://www.theleeco.com/industries/diagnostics/products/solenoid-valves/browse/?filters[subtype][]=Control%20Solenoid%20Valves&filters[model][]=2-Way) and [3-port](https://www.theleeco.com/industries/diagnostics/products/solenoid-valves/browse/?filters[subtype][]=Control%20Solenoid%20Valves&filters[model][]=3-Way) configurations, HDI Control Solenoid Valves enable designers to meet critical system-level performance requirements without making compromises. Whether you’re looking for low power consumption, low leakage or quiet operation, the HDI valve is your solution that provides unmatched reliability. ##### Key Highlights - Compact & lightweight - Conventional, latching & quiet operation models - Low power consumption - Low leakage - Long cycle life ![HDI Landing Page 2](https://info.theleeco.com/hubfs/HDI%20Landing%20Page%202.jpg "HDI Landing Page 2") ### **LHD** Series LHD Series valves are compact, 7 mm control solenoid valves that offer superior performance across an extensive cycle life. With a flow capacity of up to 450 Lohms, power as low as 550 mW, and leakage less than 50 µLPM, these valves maximize control performance without compromising reliability. [View 2-way](https://www.theleeco.com/product/lhd-series-2-way-control-solenoid-valve/) [View 3-way](https://www.theleeco.com/product/lhd-series-3-way-control-solenoid-valve/) ### **LHL** Series LHL Series valves are compact, 7 mm magnetically latched control solenoid valves that feature ultra-low power consumption (as low as 5.5 mJ/switch) and low heat dissipation. Ideal for battery-powered applications flowing air or gas, these valves require only momentary pulses (10-30 ms) of current to switch to and remain in each flow state. While being held in a specific flow state for an extended period of time, these valves don’t consume power, generate heat, or produce electrical noise. In addition, LHL Series valves provide reliable bi-stable switching performance in the smallest footprint possible. [View 2-way](https://www.theleeco.com/product/lhl-series-latching-2-way-control-solenoid-valve/) [View 3-way](https://www.theleeco.com/product/lhl-series-latching-3-way-control-solenoid-valve/) ![HDI Landing Page 1](https://info.theleeco.com/hubfs/HDI%20Landing%20Page%201.jpg "HDI Landing Page 1") ![LHD Series 3-Way Control Solenoid Valve](https://info.theleeco.com/hubfs/LHD%20Series%203-Way%20Control%20Solenoid%20Valve.jpg "LHD Series 3-Way Control Solenoid Valve") ### **LHQ** Series LHQ Series valves are compact, 7 mm quiet operation control solenoid valves that feature whisper technology to reduce actuation noise. When a typical solenoid valve is energized, there is an inherent clicking sound caused by the metal-to-metal contact of the moving armature and stationary core. With a low sound profile that is 50% quieter (≤ 37 dBA) than our already best-in-class LHD Series solenoid valve, this reliable design is ideal for bedside applications flowing air or gas. [Learn More](https://www.theleeco.com/product/lhq-series-quiet-operation-3-way-control-solenoid-valve/) #### Technical Fluid Control Handbook for Health & Science The 10th Edition Technical Fluid Control Handbook for Health & Science offers over 300 pages of detailed specs, drawings, and design tools for Lee solenoid valves, pumps, manifolds, and other precision components used in medical and scientific systems. [Get Your Copy](https://www.theleeco.com/insights/technical-fluid-control-handbook-for-health-and-science/) ![Handbook Standing Up](https://info.theleeco.com/hs-fs/hubfs/Handbook%20Standing%20Up.jpg?width=2000&height=1500&name=Handbook%20Standing%20Up.jpg "Handbook Standing Up") ###### Contact us ## Contact a Lee Sales Engineer ![Red-divider-chevron](https://info.theleeco.com/hubfs/Red-divider-chevron.svg "Red-divider-chevron") Start a discussion with one of our technical experts to find out what Lee products can do for your specific application. ![TheLeeCo\_logo\_white](https://info.theleeco.com/hubfs/TheLeeCo_logo_white.svg "TheLeeCo_logo_white") [Follow us on Facebook](https://www.facebook.com/TheLeeCo) [Follow us on LinkedIn](https://www.linkedin.com/company/the-lee-company/) [Follow us on Instagram](https://www.youtube.com/user/TheLeeCoTV) [Follow us on Twitter](https://twitter.com/TheLeeCo) ###### COPYRIGHT © 2021, ALL RIGHTS RESERVED #### About - Menu Item One - Menu Item Two - Menu Item Three #### Services - Menu Item One - Menu Item Two - Menu Item Three #### News - Menu Item One - Menu Item Two - Menu Item Three Follow us on Facebook Follow us on LinkedIn Follow us on Twitter Follow us on Instagram