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Flow Restrictors

High Pressure High Watt Jet Single-Orifice Restrictor

This high pressure single-orifice flow restrictor is suitable for working pressure differentials up to 5000 psi (8000 psi intermittent). Its robust design includes a high strength locking end and drilled safety screens, enabling the restrictor to handle higher pressures. Constructed entirely of stainless steel, the High Pressure High Watt Jet Single-Orifice Restrictor is 100% bidirectionally flow tested to a ± 2% or ± 5% flow tolerance. This restrictor is available in Lohm rates ranging from 350 to 3000 Lohms.

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Key Product Facts
  • Type:Single-Orifice
  • Diameter:0.187 inches
  • Metered Flow Range:350 to 3000 Lohms
  • Test Fluid:Water
  • Operating Pressures:Up to 5000 psi
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Product Information

General Performance
Characteristic Specification
Lohm Rate Tolerance ± 2% or ± 5%
Maximum Intermittent Working Pressure 8000 psid
Maximum Continuous Working Pressure 5000 psid
Nominal Weight 2.0 grams
Materials
PART MATERIAL SPECIFICATION
Body 304L CRES AMS QQ-S-763
Pin 17-4PH CRES AMS 5643
Screens 440C CRES AMS QQ-S-763
Metering Element 304L 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
JHHA1872350L ± 2% 350 Lohms 0.024 Request
JHHA1872375L ± 2% 375 Lohms 0.024 Request
JHHA1872400L ± 2% 400 Lohms 0.024 Request
JHHA1872425L ± 2% 425 Lohms 0.024 Request
JHHA1872450L ± 2% 450 Lohms 0.024 Request
JHHA1872475L ± 2% 475 Lohms 0.024 Request
JHHA1872500L ± 2% 500 Lohms 0.024 Request
JHHA1872550L ± 2% 550 Lohms 0.02 Request
JHHA1872600L ± 2% 600 Lohms 0.02 Request
JHHA1872650L ± 2% 650 Lohms 0.02 Request
JHHA1872700L ± 2% 700 Lohms 0.02 Request
JHHA1872750L ± 2% 750 Lohms 0.02 Request
JHHA1872800L ± 2% 800 Lohms 0.015 Request
JHHA1872850L ± 2% 850 Lohms 0.015 Request
JHHA1872900L ± 2% 900 Lohms 0.015 Request
JHHA1872950L ± 2% 950 Lohms 0.015 Request
JHHA1872100D ± 2% 1000 Lohms 0.015 Request
JHHA1872110D ± 2% 1100 Lohms 0.012 Request
JHHA1872120D ± 2% 1200 Lohms 0.012 Request
JHHA1872130D ± 2% 1300 Lohms 0.012 Request
JHHA1872140D ± 2% 1400 Lohms 0.012 Request
JHHA1872150D ± 2% 1500 Lohms 0.012 Request
JHHA1872160D ± 2% 1600 Lohms 0.012 Request
JHHA1872170D ± 2% 1700 Lohms 0.012 Request
JHHA1872180D ± 2% 1800 Lohms 0.012 Request
JHHA1872190D ± 2% 1900 Lohms 0.012 Request
JHHA1872200D ± 2% 2000 Lohms 0.012 Request
JHHA1872220D ± 2% 2200 Lohms 0.008 Request
JHHA1872240D ± 2% 2400 Lohms 0.008 Request
JHHA1872260D ± 2% 2600 Lohms 0.008 Request
JHHA1872280D ± 2% 2800 Lohms 0.008 Request
JHHA1872300D ± 2% 3000 Lohms 0.008 Request
JHHA1875350L ± 5% 350 Lohms 0.024 Request
JHHA1875375L ± 5% 375 Lohms 0.024 Request
JHHA1875400L ± 5% 400 Lohms 0.024 Request
JHHA1875425L ± 5% 425 Lohms 0.024 Request
JHHA1875450L ± 5% 450 Lohms 0.024 Request
JHHA1875475L ± 5% 475 Lohms 0.024 Request
JHHA1875500L ± 5% 500 Lohms 0.024 Request
JHHA1875550L ± 5% 550 Lohms 0.02 Request
JHHA1875600L ± 5% 600 Lohms 0.02 Request
JHHA1875650L ± 5% 650 Lohms 0.02 Request
JHHA1875700L ± 5% 700 Lohms 0.02 Request
JHHA1875750L ± 5% 750 Lohms 0.02 Request
JHHA1875800L ± 5% 800 Lohms 0.015 Request
JHHA1875850L ± 5% 850 Lohms 0.015 Request
JHHA1875900L ± 5% 900 Lohms 0.015 Request
JHHA1875950L ± 5% 950 Lohms 0.015 Request
JHHA1875100D ± 5% 1000 Lohms 0.015 Request
JHHA1875110D ± 5% 1100 Lohms 0.012 Request
JHHA1875120D ± 5% 1200 Lohms 0.012 Request
JHHA1875130D ± 5% 1300 Lohms 0.012 Request
JHHA1875140D ± 5% 1400 Lohms 0.012 Request
JHHA1875150D ± 5% 1500 Lohms 0.012 Request
JHHA1875160D ± 5% 1600 Lohms 0.012 Request
JHHA1875170D ± 5% 1700 Lohms 0.012 Request
JHHA1875180D ± 5% 1800 Lohms 0.012 Request
JHHA1875190D ± 5% 1900 Lohms 0.012 Request
JHHA1875200D ± 5% 2000 Lohms 0.012 Request
JHHA1875220D ± 5% 2200 Lohms 0.008 Request
JHHA1875240D ± 5% 2400 Lohms 0.008 Request
JHHA1875260D ± 5% 2600 Lohms 0.008 Request
JHHA1875280D ± 5% 2800 Lohms 0.008 Request
JHHA1875300D ± 5% 3000 Lohms 0.008 Request
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Installation & Accessories

Installation & Manufacturing Tools
Replacement Parts & Accessories
Part Number Description
CUTA1870210C Installation / Extraction Tool Set
JHTA1870003A Replacement Pin

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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