LHQ Series Solenoid Valves

3-Port Quiet Operation - Ported

2-Port Face Mount Style Solenoid Valve

Designed to improve patient comfort, the 3-Port Quiet Operation HDI solenoid valve features Whisper Technology™ which reduces the actuation noise of a typical solenoid valve by 50%. This valve model provides a sound-level measurement of less than 37 dBA when measured at a distance of 12 inches and cycling at a frequency of 10 Hz. The Quiet Operation HDI solenoid valve is ideal for patient simulators, patient monitors and other bedside medical devices.

Standard part numbers for the 3-Port Quiet Operation Ported style valves are listed below. The valves are offered in 5V, 12V, or 24V drive voltage configurations. The Lee Company also offers customized valve performance and manifold solutions to meet specific application requirements. Select the appropriate part number for your application in the table below, or contact your local Lee Sales Engineer for technical assistance.

FEATURES:

  • Whisper Technology™
  • 50% quieter than our already best-in-class HDI design
  • Lightweight: less than 4.5 grams
  • Flow media: rated only for use with non-combustible gases. If oxygen-service is required, ask The Lee Company about other quiet design options.
  • Compact size: as small as 0.30" (W) x 1.25" (L)
  • Low internal volume: 77 µL
  • Cycle Life: 25 million cycles. Click here for additional information.
  • Leakage: 50 SµLPM max. at 5 psid air; 70°F (21°C) throughout rated cycle life
  • Operating temperature range: 60°F to 120°F (16°C to 49°C)
  • Wetted materials: housing (PBT), armature/plunger stop (430 SS), spring (316 SS), damping fluid and epoxy. See table below for seal and plunger head wetted materials.

Swipe to the right for more table information

Part Number
(click for
drawing
)
Voltage
(Vdc)
LOHM RATE1
ON AIR AT 70°F (21°C)
Operating
Pressure
Power
Consumption2
Wetted Materials3
Seal
Material
Plunger
Head
LHQA0531220H 5 2000 Lohms
(4.0 SLPM @ 15 psid;
Ref. Cv = 0.01)
Supply 0 - 45 psig
Differential 15 psid (max.)
900 FKM PPA
LHQA1231220H 12 2000 Lohms
(4.0 SLPM @ 15 psid;
Ref. Cv = 0.01)
Supply 0 - 45 psig
Differential 15 psid (max.)
900 FKM PPA
LHQA2431220H 24 2000 Lohms
(4.0 SLPM @ 15 psid;
Ref. Cv = 0.01)
Supply 0 - 45 psig
Differential 15 psid (max.)
900 FKM PPA

(1) Click here for a full description of the Lohm Laws.
(2) Click here for complete electrical characteristics.
(3) Click here for material information and abbreviations.

Cross Section View

3-Port Quiet Operation - Ported - Shaded Drawing