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Figure 41 Steam Safety Relief Valves, ASME Section VIII
Watts

Figure 41 Steam Safety Relief Valves, ASME Section VIII

Series Figure 41 Steam Safety Relief Valves are ASME section VIII valves used for over-pressure protection of unfired pressure vessels, steam pressure reducing valve stations, and other steam service equipment with operating pressures from 5 to 250psi (.34 to 17.2 bar). Series Figure 41 is a high capacity safety relief valve with a top guide and full nozzle. It consists of a bronze body (sizes 1/2 to 2 1/2 in.) with NPT threaded male inlet and threaded female outlet (drain) connections, or a cast iron body (sizes 1 1/2 to 6 in.) construction with flanged connections. ASME, Section VIII rated.

Specification
  • Body Material: Brass, Cast Iron

    Sizes: 

    • Bronze - 1⁄2" – 21⁄2" (15 – 65mm)
    • Cast iron - 11⁄2" – 6" (40 – 150mm)
    Features
    • 2 piece body design
    • Enclosed springs
    • 2-ring control provides precise pop action and seat tightness
    • Single unit cap and lifting lever
    Approvals
    Rated in accordance with ASME Section VIII
    Pressure – Temperature
    Maximum Working Pressure: 250psi (17.2 bar)
    Maximum Working Temperature: 406°F (208°C)

Technical specification
  • Unique ref.3434
  • Product familyWater Safety & Flow Control
  • Product groupRelief Valves
  • TypeObject (single object)
  • Date of publishing2018-01-26
  • Edition number1
Related
  • Material mainBronze
  • Material secondaryCast iron
  • Designed inUnited States
  • Manufactured inUnited States
Classification
  • BIMobject CategoryPlumbing - Valves
  • IFC classificationValve
  • UNSPSC nameBall valves
  • UNSPSC code40141607
  • Uniclass 2015 CodePr_65_54_95_06
  • Uniclass 2015 DescriptionBall valves
  • CSI MasterFormat 2014 Code40 05 63
  • CSI MasterFormat 2014 TitleBall Valves
  • OmniClass Number23-27 31 15
  • OmniClass TitleBall Valves
  • CSI UniFormat II CodeC1030
  • CSI UniFormat II TitleFittings

Region availability

North America
Canada
United States