PRESSURE RELIEF VALVES0 pages

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PRODUCT DATA SHEET

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Innovation in Miniature

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NACE COMPLIANT

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PRESSURE RELIEF VALVES

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The Lee Company's new field proven .281 inch

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diameter Pressure Relief Valves are made with

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materials specifically chosen for optimal perfor-

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mance in harsh duty applications, such as those

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in the oil tool industry. These new high speed,

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direct acting valves are constructed entirely of

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corrosion-resistant materials that are compliant

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with NACE specification MR0175/ISO 15156.

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Standard valves are available in forward and

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reverse flow directions with cracking pressures

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from 80 to 5900 psid. Custom models are also

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available with cracking pressures as high as

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12,000 psid. Each Lee pressure relief valve is

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100% tested and inspected to ensure reliable

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consistent performance. Contact your local Lee

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Sales Engineer for additional information and

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technical assistance.

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All Valve Materials

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Compliant with NACE

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MR0175/ISO 15156

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Materials Used:

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- MP35N

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- 316L

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- Elgiloy

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Standard Cracking

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Pressures from 80 to

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5900 psid

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.281 PRI® (up to 3000 psi system pressure)

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RELIEF FLOW FORWARD

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RELIEF FLOW REVERSE

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PIN

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I	. 27
23

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INSERT

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I		- 1 . ( 57__, 55	)6-- ^—(45° )
281 1 2804				1 0 . 249 t

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1

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INSTALLATION HOLE

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1.57 MIN —t—. 55 Ml N h

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-V

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„.003^

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K MAX

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I I 0 . 003 I A

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Screened .281 PRI® (up to 3000 psi system pressure)

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INSERT

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••••••

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PIN

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RELIEF FLOW FORWARD

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I	. 27
23

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RELIEF FLOW REVERSE

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I		. 57_ , . 55	. 28--■ ^^—(45° )
281 1 2804				1 0 . 249 t

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INSTALLATION HOLE

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1

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.2812

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57 MIN-

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-V

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R. 003^/

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n MAX

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-6/

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.77 MIN-

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258

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254

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-$-|0.OO3TÂ

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High Pressure Screened .281 PRI® (up to 5000 psi system pressure)

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PIN INSERT INSTALLATION HOLE

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-1.36 MIN-

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RELIEF FLOW FORWARD

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I	. 30
23

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I	--- 1.355 MAX---
281 1 2804

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. 2817

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.2812

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63/

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MAX

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45°-

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-\r-

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RELIEF FLOW REVERSE

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THE LEE COMPANY, 2 PETTIPAUG RD., P.O. Box 424, WESTBROOK, CT 06498-0424

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h- . 14 MIN

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. 203

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Tel: 860-399-6281

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Fax, Order Entry: 860-399-7058

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Fax, Technical Information: 860-399-7037

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PDS 103 2/10 Web: www.TheLeeCo.com

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