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View Flow Restrictors for
Flow Restrictors

2.5 mm 303 Stainless Steel Press-In Single-Orifice Restrictor for Gases

This threadless, reliable, and highly accurate flow restrictor is specifically designed for installation into plastic housings and fittings. Its unique press-in design provides easy installation that ensures retention and prevents any bypass leakage. The orifice is constructed of 303 stainless steel, providing compatibility with a wide range of gases. It is flow tested on nitrogen with a nominal flow tolerance of ± 5%. Tighter tolerances are available as custom configurations. To increase accuracy, the orifice is tested in the direction of use.

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Key Product Facts
  • Mounting Configuration:Press-In - Into Plastic
  • Diameter:2.54 mm
  • Metered Flow Range:500 - 45,000 Lohms
  • Test Fluid:Clean & Dry Nitrogen
  • Maximum Working Pressure:Dependent on Housing Material
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Product Information

General Performance
Characteristic Specification
Lohm Rate Tolerance ± 5%
Test Fluid Clean and Dry Nitrogen
Maximum Working Pressure Dependent on Housing Material, Configuration, and Operating Conditions
Designed for Installation Into Plastics, Such as Polypropylene, Nylon, Acetal, Polyethylene, and PEEK
Materials
COMPONENT MATERIAL
Body 303 Stainless Steel
Cross Section View
Dimensional View
This image is for reference only. All dimensions are in millimeters.
Installation Hole Details
Installation Hole Drawing Number: 1INST005724S
This image is for reference only. All dimensions are in millimeters.

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
PART NUMBER FLOW DIRECTION LOHM RATE APPROXIMATE WEIGHT (g) INSTALLATION HOLE DRAWING NUMBER Request Information
RPGF2551005S Forward 500 Lohms 0.07 1INST005724S Request
RPGF2551006S Forward 600 Lohms 0.07 1INST005724S Request
RPGF2551008S Forward 800 Lohms 0.07 1INST005724S Request
RPGF2551010S Forward 1000 Lohms 0.07 1INST005724S Request
RPGF2551012S Forward 1200 Lohms 0.07 1INST005724S Request
RPGF2551015S Forward 1500 Lohms 0.07 1INST005724S Request
RPGF2551020S Forward 2000 Lohms 0.07 1INST005724S Request
RPGF2551025S Forward 2500 Lohms 0.07 1INST005724S Request
RPGF2551030S Forward 3000 Lohms 0.07 1INST005724S Request
RPGF2551040S Forward 4000 Lohms 0.07 1INST005724S Request
RPGF2551050S Forward 5000 Lohms 0.07 1INST005724S Request
RPGF2551060S Forward 6000 Lohms 0.07 1INST005724S Request
RPGF2551080S Forward 8000 Lohms 0.07 1INST005724S Request
RPGF2551100S Forward 10,000 Lohms 0.07 1INST005724S Request
RPGF2551120S Forward 12,000 Lohms 0.07 1INST005724S Request
RPGF2551150S Forward 15,000 Lohms 0.07 1INST005724S Request
RPGF2551200S Forward 20,000 Lohms 0.07 1INST005724S Request
RPGF2551250S Forward 25,000 Lohms 0.07 1INST005724S Request
RPGF2551300S Forward 30,000 Lohms 0.07 1INST005724S Request
RPGF2551400S Forward 40,000 Lohms 0.07 1INST005724S Request
RPGF2551450S Forward 45,000 Lohms 0.07 1INST005724S Request
RPGR2551005S Reverse 500 Lohms 0.07 1INST005724S Request
RPGR2551006S Reverse 600 Lohms 0.07 1INST005724S Request
RPGR2551008S Reverse 800 Lohms 0.07 1INST005724S Request
RPGR2551010S Reverse 1000 Lohms 0.07 1INST005724S Request
RPGR2551012S Reverse 1200 Lohms 0.07 1INST005724S Request
RPGR2551015S Reverse 1500 Lohms 0.07 1INST005724S Request
RPGR2551020S Reverse 2000 Lohms 0.07 1INST005724S Request
RPGR2551025S Reverse 2500 Lohms 0.07 1INST005724S Request
RPGR2551030S Reverse 3000 Lohms 0.07 1INST005724S Request
RPGR2551040S Reverse 4000 Lohms 0.07 1INST005724S Request
RPGR2551050S Reverse 5000 Lohms 0.07 1INST005724S Request
RPGR2551060S Reverse 6000 Lohms 0.07 1INST005724S Request
RPGR2551080S Reverse 8000 Lohms 0.07 1INST005724S Request
RPGR2551100S Reverse 10,000 Lohms 0.07 1INST005724S Request
RPGR2551120S Reverse 12,000 Lohms 0.07 1INST005724S Request
RPGR2551150S Reverse 15,000 Lohms 0.07 1INST005724S Request
RPGR2551200S Reverse 20,000 Lohms 0.07 1INST005724S Request
RPGR2551250S Reverse 25,000 Lohms 0.07 1INST005724S Request
RPGR2551300S Reverse 30,000 Lohms 0.07 1INST005724S Request
RPGR2551400S Reverse 40,000 Lohms 0.07 1INST005724S Request
RPGR2551450S Reverse 45,000 Lohms 0.07 1INST005724S Request
For a companion 2.5 mm safety screen filter, click here.

Installation & Accessories

Installation & Manufacturing Tools
Replacement Parts & Accessories
PART NUMBER DESCRIPTION
CCRT0029354S 2.5 mm Restrictor Installation Tool

CAD Envelopes

Resources

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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