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View Flow Restrictors for
Flow Restrictors

High Watt Jet Single-Orifice Restrictor

This single-orifice flow restrictor provides accurate, screened, bidirectional flow in the 200 to 1000 Lohm range. The integral screens are machined and drilled from bar stock for maximum strength and erosion resistance. Due to its rugged construction, this restrictor can readily withstand the high power dissipation that is often associated with high flow or low Lohm applications. This restrictor is rated for working pressures up to 4000 psid and is available in +/- 2% and +/- 5% Lohm tolerances.

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Key Product Facts
  • Type:Single-Orifice
  • Diameter:0.187 inches
  • Metered Flow Range:200 to 1000 Lohms
  • Test Fluid:Water
  • Operating Pressures:Up to 4000 psi
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Product Information

General Performance
Characteristic Specification
Lohm Rate Tolerance ± 2% or ± 5%
Maximum Working Pressure 4000 psid
Nominal Weight 1.5 grams
Materials
PART MATERIAL SPECIFICATION
Body 303 CRES QQ-S-763C
Pin 17-4PH CRES AMS 5643
Screens 303 CRES QQ-S-763C
Metering Element 304 CRES AMS QQ-S-763
Finish: All CRES Parts Passivated
Pins are prewaxed. Do not degrease. Do not lubricate.
Cross Section View
Dimensional View
This image is for reference only. All dimensions are in inches.
Installation Hole Details
This image is for reference only. All dimensions are in inches.

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
Tolerance
PART NUMBER
Tolerance
LOHM RATE NOMINAL SCREEN HOLE SIZE (in) Request Information
JEHA1872200L ± 2% 200 Lohms 0.03 Request
JEHA1872225L ± 2% 225 Lohms 0.03 Request
JEHA1872250L ± 2% 250 Lohms 0.03 Request
JEHA1872275L ± 2% 275 Lohms 0.03 Request
JEHA1872300L ± 2% 300 Lohms 0.03 Request
JEHA1872325L ± 2% 325 Lohms 0.03 Request
JEHA1872350L ± 2% 350 Lohms 0.024 Request
JEHA1872375L ± 2% 375 Lohms 0.024 Request
JEHA1872400L ± 2% 400 Lohms 0.024 Request
JEHA1872425L ± 2% 425 Lohms 0.024 Request
JEHA1872450L ± 2% 450 Lohms 0.024 Request
JEHA1872475L ± 2% 475 Lohms 0.024 Request
JEHA1872500L ± 2% 500 Lohms 0.024 Request
JEHA1872550L ± 2% 550 Lohms 0.02 Request
JEHA1872600L ± 2% 600 Lohms 0.02 Request
JEHA1872650L ± 2% 650 Lohms 0.02 Request
JEHA1872700L ± 2% 700 Lohms 0.02 Request
JEHA1872750L ± 2% 750 Lohms 0.02 Request
JEHA1872800L ± 2% 800 Lohms 0.015 Request
JEHA1872850L ± 2% 850 Lohms 0.015 Request
JEHA1872900L ± 2% 900 Lohms 0.015 Request
JEHA1872950L ± 2% 950 Lohms 0.015 Request
JEHA1872100D ± 2% 1000 Lohms 0.015 Request
JEHA1875200L ± 5% 200 Lohms 0.03 Request
JEHA1875225L ± 5% 225 Lohms 0.03 Request
JEHA1875250L ± 5% 250 Lohms 0.03 Request
JEHA1875275L ± 5% 275 Lohms 0.03 Request
JEHA1875300L ± 5% 300 Lohms 0.03 Request
JEHA1875325L ± 5% 325 Lohms 0.03 Request
JEHA1875350L ± 5% 350 Lohms 0.024 Request
JEHA1875375L ± 5% 375 Lohms 0.024 Request
JEHA1875400L ± 5% 400 Lohms 0.024 Request
JEHA1875425L ± 5% 425 Lohms 0.024 Request
JEHA1875450L ± 5% 450 Lohms 0.024 Request
JEHA1875475L ± 5% 475 Lohms 0.024 Request
JEHA1875500L ± 5% 500 Lohms 0.024 Request
JEHA1875550L ± 5% 550 Lohms 0.02 Request
JEHA1875600L ± 5% 600 Lohms 0.02 Request
JEHA1875650L ± 5% 650 Lohms 0.02 Request
JEHA1875700L ± 5% 700 Lohms 0.02 Request
JEHA1875750L ± 5% 750 Lohms 0.02 Request
JEHA1875800L ± 5% 800 Lohms 0.015 Request
JEHA1875850L ± 5% 850 Lohms 0.015 Request
JEHA1875900L ± 5% 900 Lohms 0.015 Request
JEHA1875950L ± 5% 950 Lohms 0.015 Request
JEHA1875100D ± 5% 1000 Lohms 0.015 Request
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Installation & Accessories

Replacement Parts & Accessories
Part Number Description
CUTA1870110C Installation / Extraction Tool Set
JEHA1870003A Replacement Pin
JEHA1871000A Master Set

CAD Envelopes

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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