Danco Bronze Semi-Nozzle Pressure Relief Valve with Flanged Connections (Sizes 2½” – 8″)

bronze-seminoz-flan-lrg_image_diagram
Model Descriptions:

Shipboard pressure relief valves in full conformance with the applicable ASTM and military specifications. Sizes 2 1/2″ through 8″. Flanged connections, bronze construction with semi-nozzle and bolted 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.

End Connections, Weights & Dimensions

Mil-PRF-20042
150 #
Mil-PRF-20042
250 # & ASME Class 150
Size Approx. Weight A B C A B C
2 1/2" 80 lbs. 5.5 5.5 19.0 5.5 5.5 19.0
3" 80 lbs. 6.0 5.5 19.5 6.0 5.5 19.5
4" 170 lbs. 6.5 6.5 24.0 7.0 7.0 24.0
4" x 6" 200 lbs. 9.0 6.5 30.0 9.0 6.5 30.0
5" 182 lbs. 6.5 6.5 24.0 7.0 7.0 24.5
6" x 8" 450 lbs. 10.0 9.5 41.0 10.0 9.6 41.5
8" 600 lbs. 10.0 10.0 49.0 10.0 10.0 49.5

The dimensions noted above are in conformance with ASTM F1508. Center-to-face dimensions can be modified to meet your specific requirements.