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View Flow Metering Valves for
Flow Metering Valves

281 Flosert Flow Metering Valve

This miniature, pressure-compensating flow control valve is 0.281 inches in diameter and 1.28 inches in length. This valve provides a constant flow rate over a wide range of pressure differentials. Regulated flow rates are available from 0.1 to 1 GPM.

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Key Product Facts
  • Type:Flosert
  • Diameter:0.187 inches
  • Regulated Flow Rate:0.1 - 1.0 gpm
  • Maximum Working Pressure:3000 psi
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Product Information

General Performance
Characteristic Specification
Regulated Flow Tolerance ±10%
Nominal Screen Hole Size 0.015 inches
Nominal System Pressure up to 3000 psi
Nominal Weight 6.4 grams
Materials
PART MATERIAL SPECIFICATION
Body 303 CRES QQ-S-763C
Pin 303 CRES QQ-S-763C
Piston 416 CRES QQ-S-763C
Spool 440C CRES AMS 5630
Spring 17-7PH CRES AMS 5678
Screen 304L CRES ASTM A 666
Braze --- AMS 4774
Finish: All CRES parts passivated.
Pins are prewaxed. Do not degrease. Do not lubricate.
Cross Section Views
Regulated Flow Forward
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
REGULATED FLOW DIRECTION
LEE PART NUMBER
REGULATED FLOW DIRECTION
REGULATED FLOW ON MIL-PRF-83282 at 85°F (GPM) FLOW REGULATION RANGE (psid) NOMINAL LOHM RATE NON REGULATING FLOW DIRECTION Request Information
FLFA5001350D FORWARD 5 150 - 3000 60 Request
FLFA5001345L FORWARD 4.5 125 - 3000 60 Request
FLFA5001340L FORWARD 4 125 - 3000 65 Request
FLFA5001335L FORWARD 3.5 100 - 3000 70 Request
FLFA5001330L FORWARD 3 100 - 3000 80 Request
FLFA5001325L FORWARD 2.5 100 - 3000 95 Request
FLFA5001320L FORWARD 2 100 - 3000 120 Request
FLFA5001315L FORWARD 1.5 100 - 3000 150 Request
FLRA5001350D REVERSE 5 150 - 3000 60 Request
FLRA5001345L REVERSE 4.5 125 - 3000 60 Request
FLRA5001340L REVERSE 4 125 - 3000 65 Request
FLRA5001335L REVERSE 3.5 100 - 3000 70 Request
FLRA5001330L REVERSE 3 100 - 3000 80 Request
FLRA5001325L REVERSE 2.5 100 - 3000 95 Request
FLRA5001320L REVERSE 2 100 - 3000 120 Request
FLRA5001315L REVERSE 1.5 100 - 3000 150 Request
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Installation & Accessories

Replacement Parts & Accessories
PART NUMBER DESCRIPTION
CUTA2810114C Installation / Extraction Tool Set
PRFA2810003A Replacement Pin

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