Danco Pressure Relief Valves

Bronze Semi-Nozzle Valves

DANCO BRONZE SEMI-NOZZLE PRESSURE RELIEF VALVE WITH FLANGED CONNECTIONS (SIZES ¼" - 2")

Flanged Connections

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.
  • Danco Valve Company wire seals all valves 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

STEM ASSEMBLY: CRES/316 ASTM A276

SPRING: CRES/316 ASTM A313

DISC ASSEMBLY:
___Disc: Monel, QQ-N-288
___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.