www.theleeco.com
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35.231.175.166
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Submitted URL: http://theleeco.com/
Effective URL: https://www.theleeco.com/
Submission: On April 16 via manual from DE — Scanned from DE
Effective URL: https://www.theleeco.com/
Submission: On April 16 via manual from DE — Scanned from DE
Form analysis 4 forms found in the DOM
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</form><form class="py-3 p-lg-3" id="lohm_calculator_gas">
<h6 class="text-uppercase mb-1"><strong>Solve For:</strong></h6>
<fieldset class="d-flex">
<div class="me-2">
<input type="radio" name="lohm-solve-gas" id="lohm-gas-solve--lohms" value="lohms" checked="">
<label for="lohm-gas-solve--lohms">LOHMs</label>
</div>
<div class="me-2">
<input type="radio" name="lohm-solve-gas" id="lohm-gas-solve--flow-rate" value="flow-rate">
<label for="lohm-gas-solve--flow-rate">Flow Rate</label>
</div>
<div class="me-2">
<input type="radio" name="lohm-solve-gas" id="lohm-gas-solve--pressure" value="pressure">
<label for="lohm-gas-solve--pressure">Pressure</label>
</div>
</fieldset>
<div class="col d-flex justify-content-between align-items-end flex-sm-wrap mt-3 mb-1">
<h6 class="text-uppercase mb-auto"><strong>Please Enter Values:</strong></h6>
<span class="required-fields">All fields required</span>
</div>
<fieldset class="row justify-content-center mb-2 align-items-center" data-convert-unit-wrapper="">
<div class="col-lg-6">
<label>Gas:</label>
</div>
<div class="col-lg-6">
<div class="row">
<div class="col-12">
<div class="select-wrap">
<div class="placeholder">Air</div>
<!-- removing this because of conflict data-convert-unit-unit=""-->
<select name="lohm_fluid_type" data-fluid-type="gas">
<option value="air" selected="">Air</option>
<option value="argon">Argon (Ar)</option>
<option value="carbon_dioxide">Carbon Dioxide (CO₂)</option>
<option value="carbon_monoxide">Carbon Monoxide (CO)</option>
<option value="ethane">Ethane (C₂H₆)</option>
<option value="freon">Freon-12 (CCl₂F₂)</option>
<option value="helium">Helium (He)</option>
<option value="hydrogen">Hydrogen (H₂)</option>
<option value="natgas">Natural Gas</option>
<option value="neon">Neon (Ne)</option>
<option value="nitrogen">Nitrogen (N₂)</option>
<option value="nitrous_oxide">Nitrous Dioxide (N₂O)</option>
<option value="oxygen">Oxygen (O₂)</option>
<option value="sulfur_dioxide">Sulfur Dioxide (SO₂)</option>
<option value="xenon">Xenon (Xe)</option>
</select>
</div>
</div>
</div>
</div>
<!--<input type="hidden" name="" value="" data-convert-unit-target="">-->
</fieldset>
<fieldset class="row justify-content-center mb-2 align-items-center" data-convert-unit-wrapper="">
<div class="col-lg-6">
<label>Gas Temperature:</label>
</div>
<div class="col-lg-6">
<div class="row">
<div class="col-7 col-lg-6 pe-1">
<input type="number" value="" name="temperature" min="0" step="any">
</div>
<div class="col-5 col-lg-6 ps-1">
<div class="select-wrap">
<div class="placeholder">°F</div>
<select name="temperature_unit" data-convert-unit-unit="">
<option value="F" selected="">°F</option>
<option value="C">°C</option>
</select>
</div>
</div>
</div>
</div>
<!-- <input type="hidden" name="" value="" data-convert-unit-target=""> -->
</fieldset>
<fieldset class="row justify-content-center mb-2 align-items-center lohm-gas-pressure" data-convert-unit-wrapper="">
<div class="col-lg-6">
<label>Upstream Pressure:</label>
</div>
<div class="col-lg-6">
<div class="row">
<div class="col-7 col-lg-6 pe-1">
<input type="number" value="" name="upstream_pressure" min="0" step="any">
</div>
<div class="col-5 col-lg-6 ps-1">
<div class="select-wrap">
<div class="placeholder">psia</div>
<select data-convert-unit-unit="" name="upstream_pressure_unit">
<option value="psia" selected="">psia</option>
<option value="psig">psig</option>
<option value="bar">bar</option>
<option value="kPa">kPa</option>
<option value="mm Hg">mm Hg</option>
</select>
</div>
</div>
</div>
</div>
<!-- <input type="hidden" name="" value="" data-convert-unit-target=""> -->
</fieldset>
<fieldset class="row justify-content-center mb-2 align-items-center" data-convert-unit-wrapper="">
<div class="col-lg-6">
<label>Downstream Pressure:</label>
</div>
<div class="col-lg-6">
<div class="row">
<div class="col-7 col-lg-6 pe-1">
<input type="number" value="" name="downstream_pressure" min="0" step="any">
</div>
<div class="col-5 col-lg-6 ps-1">
<div class="select-wrap">
<div class="placeholder">psia</div>
<select data-convert-unit-unit="" name="downstream_pressure_unit">
<option value="psia" selected="">psia</option>
<option value="psig">psig</option>
<option value="bar">bar</option>
<option value="kPa">kPa</option>
<option value="mm Hg">mm Hg</option>
</select>
</div>
</div>
</div>
</div>
<!-- <input type="hidden" name="" value="" data-convert-unit-target=""> -->
</fieldset>
<fieldset class="row justify-content-center mb-2 align-items-center lohm-gas-flow-rate" data-convert-unit-wrapper="">
<div class="col-lg-6">
<label>Flow Rate:</label>
</div>
<div class="col-lg-6">
<div class="row">
<div class="col-7 col-lg-6 pe-1 flow-rate-value">
<input type="number" value="" name="flow_rate" min="0" step="any">
</div>
<div class="col-5 col-lg-6 ps-1 flow-rate-unit">
<div class="select-wrap">
<div class="placeholder">SLPM</div>
<!-- causing conflict data-convert-unit-unit="" -->
<select name="flow_rate_unit">
<option value="SLPM" selected="">SLPM</option>
<option value="SCFM">SCFM</option>
<option value="in3/min">in³/min</option>
<option value="mL/min">mL/min</option>
<option value="PPH">PPH</option>
<option value="lbm/s">lbm/s</option>
<option value="kg/min">kg/min</option>
<option value="gm/min">gm/min</option>
</select>
</div>
</div>
</div>
</div>
<!-- <input type="hidden" name="" value="" data-convert-unit-target=""> -->
</fieldset>
<fieldset class="row justify-content-center mb-2 align-items-center hidden lohm-gas-lohms" data-convert-unit-wrapper="">
<div class="col-lg-6">
<label>Lohms:</label>
</div>
<div class="col-lg-6">
<div class="row">
<div class="col-12">
<input type="number" value="" name="lohms_user_value" min="0" step="any">
</div>
</div>
</div>
</fieldset>
<fieldset class="row justify-content-center mb-2 align-items-center" data-convert-unit-wrapper="">
<div class="col-lg-6">
<label>Critical Pressure:</label>
</div>
<div class="col-lg-6">
<div class="row">
<div class="col-12">
<div class="lohm-parameter-display" data-lohm-parameter-critical-pressure="">
</div>
</div>
</div>
</div>
</fieldset>
<fieldset class="row justify-content-center mb-2 align-items-center" data-convert-unit-wrapper="">
<div class="col-lg-6">
<label>Critical Temperature:</label>
</div>
<div class="col-lg-6">
<div class="row">
<div class="col-12">
<div class="lohm-parameter-display" data-lohm-parameter-critical-temperature="">
</div>
</div>
</div>
</div>
</fieldset>
<fieldset class="row justify-content-center mb-2 align-items-center" data-convert-unit-wrapper="">
<div class="col-lg-6">
<label>Units Constant "K":</label>
</div>
<div class="col-lg-6">
<div class="row">
<div class="col-12">
<div class="lohm-parameter-display" data-lohm-parameter-units-constant-k="">
</div>
</div>
</div>
</div>
</fieldset>
<fieldset class="submit-fieldset mt-4">
<div class="row align-items-center">
<div class="col-6">
<button class="btn calculate-lohms-standalone" type="button" data-fluid="gas">Calculate</button>
</div>
<div class="col-6 text-end">
<h5 class="mb-0"><strong><span id="lohms_gas"></span></strong></h5>
</div>
</div>
</fieldset>
</form><form class="py-3 p-lg-3" id="lohm_calculator_liquid">
<h6 class="text-uppercase mb-1"><strong>Solve For:</strong></h6>
<fieldset class="d-flex">
<div class="me-2">
<input type="radio" name="lohm-solve-liquid" id="lohm-liquid-solve--lohms" value="lohms" checked="">
<label for="lohm-liquid-solve--lohms">LOHMs</label>
</div>
<div class="me-2">
<input type="radio" name="lohm-solve-liquid" id="lohm-liquid-solve--flow-rate" value="flow-rate">
<label for="lohm-liquid-solve--flow-rate">Flow Rate</label>
</div>
<div class="me-2">
<input type="radio" name="lohm-solve-liquid" id="lohm-liquid-solve--pressure" value="pressure">
<label for="lohm-liquid-solve--pressure">Pressure</label>
</div>
</fieldset>
<div class="col d-flex justify-content-between align-items-end flex-sm-wrap mt-3 mb-1">
<h6 class="text-uppercase mb-auto"><strong>Please Enter Values:</strong></h6>
<span class="required-fields">All fields required</span>
</div>
<fieldset class="row justify-content-center mb-2 align-items-center" data-convert-unit-wrapper="">
<div class="col-lg-6">
<label>Liquid:</label>
</div>
<div class="col-lg-6">
<div class="row">
<div class="col-12">
<div class="select-wrap" id="select-liquid-type">
<div class="placeholder">Water</div>
<select name="lohm_fluid_type" data-fluid-type="liquid" data-convert-unit-unit="">
<option value="#2 Diesel Oil">#2 Diesel Oil</option>
<option value="Isopropyl Alcohol">Isopropyl Alcohol</option>
<option value="MIL-PRF-7024">MIL-PRF-7024</option>
<option value="MIL-PRF-5606">MIL-PRF-5606</option>
<option value="MIL-PRF-83282">MIL-PRF-83282</option>
<option value="MIL-PRF-23699">MIL-PRF-23699</option>
<option value="MIL-PRF-7808">MIL-PRF-7808</option>
<option value="MIL-PRF-5624 (JP-4)">MIL-PRF-5624 (JP-4)</option>
<option value="MIL-PRF-5624 (JP-5)">MIL-PRF-5624 (JP-5)</option>
<option value="SAE 10 Oil">SAE 10 Oil</option>
<option value="Silicone (200 cS)">Silicone (200 cS)</option>
<option value="Skydrol 500B-4">Skydrol 500B-4</option>
<option value="Skydrol LD-4">Skydrol LD-4</option>
<option value="Transaqua HT">Transaqua HT</option>
<option value="Water" selected="">Water</option>
<option value="other">Other</option>
</select>
</div>
</div>
</div>
</div>
<!-- <input type="hidden" name="" value="" data-convert-unit-target=""> -->
</fieldset>
<fieldset class="row justify-content-center mb-2 align-items-center" data-convert-unit-wrapper="">
<div class="col-lg-6">
<label>Liquid Temperature:</label>
</div>
<div class="col-lg-6">
<div class="row">
<div class="col-7 col-lg-6 pe-1">
<input type="number" value="" name="temperature" min="-450" step="any">
</div>
<div class="col-5 col-lg-6 ps-1">
<div class="select-wrap">
<div class="placeholder">°F</div>
<select name="temperature_unit" data-convert-unit-unit="">
<option value="F" selected="">°F</option>
<option value="C">°C</option>
</select>
</div>
</div>
</div>
</div>
<!-- <input type="hidden" name="" value="" data-convert-unit-target=""> -->
</fieldset>
<fieldset class="row justify-content-center mb-2 align-items-center lohm-liquid-pressure" data-convert-unit-wrapper="">
<div class="col-lg-6">
<label>Upstream Pressure:</label>
</div>
<div class="col-lg-6">
<div class="row">
<div class="col-7 col-lg-6 pe-1">
<!--onkeyup="if(this.value<0){this.value = this.value * -1}"-->
<input type="number" value="" name="upstream_pressure" min="0" step="any">
</div>
<div class="col-5 col-lg-6 ps-1">
<div class="select-wrap">
<div class="placeholder">psi</div>
<select data-convert-unit-unit="" name="upstream_pressure_unit">
<option value="psi" selected="">psi</option>
<option value="bar">bar</option>
<option value="kPa">kPa</option>
<option value="kg/sq. cm">kg/sq. cm</option>
<option value="mm Hg">mm Hg</option>
</select>
</div>
</div>
</div>
</div>
<!-- <input type="hidden" name="" value="" data-convert-unit-target=""> -->
</fieldset>
<fieldset class="row justify-content-center mb-2 align-items-center" data-convert-unit-wrapper="">
<div class="col-lg-6">
<label>Downstream Pressure:</label>
</div>
<div class="col-lg-6">
<div class="row">
<div class="col-7 col-lg-6 pe-1">
<!-- onkeyup="if(this.value<0){this.value = this.value * -1}" -->
<input type="number" value="" name="downstream_pressure" min="0" step="any">
</div>
<div class="col-5 col-lg-6 ps-1">
<div class="select-wrap">
<div class="placeholder">psi</div>
<select data-convert-unit-unit="" name="downstream_pressure_unit">
<option value="psi" selected="">psi</option>
<option value="bar">bar</option>
<option value="kPa">kPa</option>
<option value="kg/sq. cm">kg/sq. cm</option>
<option value="mm Hg">mm Hg</option>
</select>
</div>
</div>
</div>
</div>
<!-- <input type="hidden" name="" value="" data-convert-unit-target=""> -->
</fieldset>
<fieldset class="row justify-content-center mb-2 align-items-center lohm-liquid-flow-rate" data-convert-unit-wrapper="">
<div class="col-lg-6">
<label>Flow Rate:</label>
</div>
<div class="col-lg-6">
<div class="row">
<div class="col-7 col-lg-6 pe-1 flow-rate-value">
<!-- onkeyup="if(this.value<0){this.value = this.value * -1}" -->
<input type="number" value="" name="flow_rate" min="0" step="any">
</div>
<div class="col-5 col-lg-6 ps-1 flow-rate-unit">
<div class="select-wrap">
<div class="placeholder">gpm</div>
<!-- causing error data-convert-unit-unit="" -->
<select name="flow_rate_unit">
<option value="gpm" selected="">gpm</option>
<option value="L/min">L/min</option>
<option value="mL/min">mL/min</option>
<option value="in3/min">in³/min</option>
<option value="PPH">PPH</option>
<option value="gm/min">gm/min</option>
</select>
</div>
</div>
</div>
</div>
<!-- <input type="hidden" name="" value="" data-convert-unit-target=""> -->
</fieldset>
<fieldset class="row justify-content-center mb-2 align-items-center hidden lohm-liquid-lohms" data-convert-unit-wrapper="">
<div class="col-lg-6">
<label>Lohms:</label>
</div>
<div class="col-lg-6">
<div class="row">
<div class="col-12">
<input type="number" value="" name="lohms_user_value" min="0" step="any">
</div>
</div>
</div>
<input type="hidden" name="" value="" data-convert-unit-target="">
</fieldset>
<fieldset class="row justify-content-center mb-2 align-items-center" data-convert-unit-wrapper="">
<div class="col-lg-6">
<label>Viscosity:</label>
</div>
<div class="col-lg-6">
<div class="row">
<div class="col-7 col-lg-6 pe-1">
<input class="hidden" type="number" value="" name="viscosity" min="0" step="any">
<div class="col-7 col-lg-6 pe-1 lohm-parameter-display" data-lohm-parameter-viscosity="">
</div>
</div>
<div class="col-5 col-lg-6 ps-1">
<div class="unit-display">cS</div>
</div>
</div>
</div>
<!-- <input type="hidden" name="" value="" data-convert-unit-target=""> -->
</fieldset>
<fieldset class="row justify-content-center mb-2 align-items-center" data-convert-unit-wrapper="">
<div class="col-lg-6">
<label>Specific Gravity:</label>
</div>
<div class="col-lg-6">
<div class="row">
<div class="col-12">
<input class="hidden" type="number" value="" name="specific_gravity" min="0" step="any">
<div class="lohm-parameter-display" data-lohm-parameter-specific-gravity="">
</div>
</div>
</div>
</div>
</fieldset>
<fieldset class="row justify-content-center mb-2 align-items-center" data-convert-unit-wrapper="">
<div class="col-lg-6">
<div><label>V-Factor<sup>*</sup>:</label></div>
<div class="manual-enter">
<input class="checkbox-lg" type="checkbox" name="manual-enter-v-factor" id="manual-enter-v-factor-liquid">
<label class="small-label" for="manual-enter-v-factor-liquid">Manually Enter</label>
</div>
</div>
<div class="col-lg-6">
<div class="row">
<div class="col-12">
<input class="hidden" type="number" value="" name="v_factor" min="0" step="any">
<div class="lohm-parameter-display" data-lohm-parameter-v-factor="">
</div>
</div>
</div>
</div>
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<fieldset class="submit-fieldset mt-4">
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</fieldset>
<div class="d-block d-md-none py-1">
<div class="vfactor-text mt-2">
<p><sup>*</sup>There are many parameters to consider when determining V-Factor.
<strong><a href="https://www.theleeco.com/support-resources/engineering-tools/lohm-laws-working-with-liquids/viscosity-compensation-factor-v-for-a-single-orifice/">Click here</a></strong> for more information.</p>
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The Lee Company
THE LEADING INNOVATOR IN MINIATURE PRECISION FLUID CONTROL
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Our passion for innovation enables us to solve our customer’s toughest fluid
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CALCULATE GAS LOHMS
Always verify flow calculations by experiment.
Calculate Liquid LOHMS
CALCULATE GAS LOHMS
Calculate Liquid LOHMS
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
Dioxide (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 lbm/s kg/min gm/min
Lohms:
Critical Pressure:
Critical Temperature:
Units Constant "K":
Calculate
CALCULATE LIQUID LOHMS
Always verify flow calculations by experiment.
Calculate Gas LOHMS
*There are many parameters to consider when determining V-Factor. Click here for
more information.
CALCULATE LIQUID LOHMS
Calculate Gas LOHMS
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
*There are many parameters to consider when determining V-Factor. Click here for
more information.
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