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Lee Locations around the world
The Lee Company in the USA
The Lee Company In the UK
The Lee Company in Germany
The Lee Company in France
The Lee Company In Italy
See Global Distributors and Agents
Applications
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Featured Insight
An Engineer's Guide to Selecting a Check Valve
insight
White paper
Adapting Fluid Control Components for Hydrogen Applications
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eBook
An Engineer's Guide to Selecting a Flow Restrictor
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eBook
An Engineer's Guide to Selecting a Check Valve
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eBook
An Engineer's Guide to Selecting a Pressure Relief Valve
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Article
The Difference Between Calibrated Orifices and Holes
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Solutions to Problems Caused by Trapped Air in Hydraulic Systems
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System Performance Depends on Cleanliness
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Selecting the Best Pinch Valve for Your Application
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Solve For:
LOHMs
Flow Rate
Pressure
Please Enter Values:
All fields required
Gas:
Air
Air
Argon (Ar)
Carbon Dioxide (CO₂)
Carbon Monoxide (CO)
Ethane (C₂H₆)
Freon-12 (CCl₂F₂)
Helium (He)
Hydrogen (H₂)
Natural Gas
Neon (Ne)
Nitrogen (N₂)
Nitrous Oxide (N₂O)
Oxygen (O₂)
Sulfur Dioxide (SO₂)
Xenon (Xe)
Gas Temperature:
°F
°F
°C
Upstream Pressure:
psia
psia
psig
bar
kPa
mm Hg
Downstream Pressure:
psia
psia
psig
bar
kPa
mm Hg
Flow Rate:
SLPM
SLPM
SCFM
in³/min
mL/min
PPH
lb
m
/s
kg/min
gm/min
Lohms:
Critical Pressure:
Critical Temperature:
Units Constant "K":
Calculate
Solve For:
LOHMs
Flow Rate
Pressure
Please Enter Values:
All fields required
Liquid:
Water
#2 Diesel Oil
Isopropyl Alcohol
MIL-PRF-7024
MIL-PRF-5606
MIL-PRF-83282
MIL-PRF-23699
MIL-PRF-7808
MIL-PRF-5624 (JP-4)
MIL-PRF-5624 (JP-5)
SAE 10 Oil
Silicone (200 cS)
Skydrol 500B-4
Skydrol LD-4
Transaqua HT
Water
Other
Liquid Temperature:
°F
°F
°C
Upstream Pressure:
psi
psi
bar
kPa
kg/sq. cm
mm Hg
Downstream Pressure:
psi
psi
bar
kPa
kg/sq. cm
mm Hg
Flow Rate:
gpm
gpm
L/min
mL/min
in³/min
PPH
gm/min
Lohms:
Viscosity:
cS
Specific Gravity:
V-Factor
*
:
Manually Enter
Calculate