Danco Bronze Semi-Nozzle Pressure Relief Valve with Flanged Connections (Sizes ¼” – 2″)

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Model Descriptions:

Shipboard pressure relief valves in full conformance with the applicable ASTM and military specifications. Sizes 1/4″ through 2″. Flanged connections, bronze construction with semi-nozzle and threaded bonnet design.

Applications:

  • ASTM F1508
  • Mil-V-24332 Liquid (latest revision)
  • Mil-V-22549 Air/Gas, (latest revision)
  • Mil-V-20065 Steam (revision C, Type A-2, Class C)

Features:

  • Danco Valves are the industry’s premier mil-spec relief valves. The valves are quick acting, non-chattering and smooth guiding. They also feature optimal sealing tightness with a unique soft-seat design.
  • We warranty materials and workmanship against defects for two years after the date of installation. This comprehensive warranty ensures complete manufacturer support.
  • All valves are wire sealed to prevent unauthorized tampering.
  • For capacity information specific to your application, please contact us.

Standard Materials:

  • Body, Bonnet & Lever Housing: Bronze/ASTM B61
  • Seat: Monel/QQ-N-288/ASTM A494
  • Stem Assembly: CRES/316 ASTM A276
  • Spring: CRES/316 ASTM A313
  • Disc Assembly:
    • Disc: Monel, QQ-N-288/ASTM A494
    • Disc Insert: Teflon®/AMS 3660
    • Disc Insert Retainer: Monel, QQ-N-281

Optional Materials:

Valve materials can be customized for your specific application or in accordance with specification requirements.

Weights & Dimensions

Size Approx. Weight A B C
1/4″ 14 lbs. 3.0 3.0 13.0
3/8″ 14 lbs. 3.0 3.0 13.0
1/2″ 14 lbs. 3.0 3.0 13.0
3/4″ 14 lbs. 3.0 3.0 13.0
1″ 28 lbs. 3.5 3.5 15.0
1 1/4″ 28 lbs. 3.8 3.8 16.0
1 1/2″ 45 lbs. 4.7 4.7 17.0
2″ 55 lbs. 4.7 4.7 18.0

The dimensions noted above are for Mil-PRF-20042 Class 150, Mil-PRF-20042 Class 250 and ASME B16.24 Class 150 and Class 300 flanges, in conformance with ASTM F1508. Center-to-face dimension can be modified to meet your specific requirements.