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THE LEE COMPANY
HIGH PRESSURE 281 FLOSERT

HIGH PRESSURE 281 FLOSERT

Product catalog summary

Materials:
The High Pressure 281 Flosert is constructed using various stainless steel materials for durability. Key components include:

Body, Pin, Filter Screens: 15-5PH Cres (AMS 5659)
Spring Seat: 304 Cres (AMS 5639)
Spool: 13-8 MO (AMS 5629)
Orifice Plate: 304 Cres (ASTM-A-666)
Piston: 416 Cres (QQ-S-763C)
Spring: 17-7PH Cres (AMS 5678)
Internal Seal: GFP with 316 or MP35N Spring

Performance:
The valve provides regulated flow with a tolerance of ±10% and can handle system pressures up to 5000 psi. It weighs 7 grams and is endurance tested to 100,000 cycles.

Installation and Extraction:
Tools required include Tool Set Part No.: CUTA2810114C and Replacement Pin Part No.: SHBA2810003A.

Product Features:
The High Pressure 281 Flosert offers regulated flow rates from 0.1 to 1.0 GPM and is available in both forward and reverse flow configurations. It is 100% tested and inspected for reliable performance.

Flow Rates and Part Numbers:
Detailed flow rates and part numbers are provided for both forward and reverse regulated flow configurations, with flow rates ranging from 0.1 to 1.0 GPM and pressure ranges from 100 to 5000 psi.

Lohms Laws:
The document introduces the concept of Lohms, a unit for measuring fluid resistance in hydraulic components, analogous to Ohms in electrical systems. Lohms simplify hydraulic computations by compensating for discharge coefficients and dimensional tolerances.

Liquid Flow Formula:
Formulas are provided to calculate flow rates for various liquids, incorporating factors for liquid density and viscosity. The units constant (K) is used to standardize pressure and flow parameters.

Flow Units:
Tables are provided for volumetric and gravimetric flow units, detailing conversions for different pressure units (psi, bar, kPa).

Catalog excerpts

HIGH PRESSURE 281 FLOSERT® The Lee Company’s new High Pressure 281 Flosert is the latest addition to Lee’s line of miniature flow regulating valves. These valves are pressure compensated to provide a constant flow over a wide range of pressure differentials. This new valve is ideal for high pressure hydraulic applications with system pressures up to 5,000 psi. The metal components are constructed entirely of stainless steel for durability and long life. Nominal weight is just 7 grams. ■ Provides Regulated Flow up to 5000 psid ■ Regulated Flow Rate Available from 0.1 to 1.0 GPM ■ Regulated Flow Tolerance: ±10% ■ Weighs only 7 grams ■ 100% Tested and Inspected ■ Endurance Tested to 100,000 The High Pressure 281 Flosert is available in forward and reverse regulated flow configurations, with regulated flow rates from 0.1 to 1.0 GPM. Each Flosert is 100% tested and inspected to ensure reliable, consistent performance. Contact your local Lee Sales Engineer for more information and technical assistance. INSTALLATION HOLE REGULATED FLOW FORWARD REGULATED FLOW REVERSE Filter Screens Regulated Flow Tolerance: ±10% Nominal System Pressure: up to 5000 psi Nominal Weight: 7 grams Spring Seat Orifice Plate Internal Seal See reverse side for Part Numbers and Flow Rates. The Lee Company, 2 Pettipaug Rd., P.O. Box 424, Westbrook, CT 06498-0424 PDS 122 1/13 Tel: 860-399-6281 Fax, Order Entry: 860-399-7058 Fax, Technical Information: 860-399-7037 Web: www.TheLeeCo.com

Open the catalog to page 1

Flow Regulation Range (psi) D P Min. Nominal Lohm Rate Non Regulating Flow Direction LIQUID FLOW – UNITS CONSTANT K VOLUMETRIC FLOW UNITS LOHMS LAWS (liquids) Every engineer will be interested in our simple system of defining the fluid resistance of Lee hydraulic components. Just as the OHM is used in the electrical industry, we find that we can use a liquid OHM or "Lohm" to good advantage on all hydraulic computations. Flow Units GPM L/min ml/min in3/min When using the Lohm system, you can forget about coefficients of discharge and dimensional tolerances on drilled holes. These factors are automatically...

Open the catalog to page 2

HIGH PRESSURE 281 FLOSERT

HIGH PRESSURE 281 FLOSERT

Catalog excerpts

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