S&R Safety Valve from LESER

S&RType 424

Safety valve for steam generators up to 1 bar overpressure. Technical data

  • Standardized heating safety valve
  • Suitable for steam generators up to 1 bar overpressure

  • CE_Europa_schwarz
  • VdTUEV

Applications & Industries

Heating and building services engineering

The optimal solution for:

  • Steam generator up to 1 bar overpressure
ThyssenKrupp Schulte GmbH Thermoquell Brner GmbH  Co

Technical Features Type 424

Set pressure (according to CE) 0.5 - 1 bar | 7.2 - 14.5 psig
Temperature (according to CE) up to 120 °C | up to 248 °F
Capacity orifice G- to Q
Connections DIN EN 1092 DN 25 - DN 150 | NPS 1 - NPS 6
Flange class DIN EN 1092 PN 16 | PN 16
Body material 0.6025, (1.0619) | Cast iron, (SA 216 WCB)
Narrowest flow diameter d₀ 23 - 125 mm | 0.98 - 4.92 in
Narrowest flow area A₀ 416 - 12272 mm² | 0.65 - 19 in²
Bellows material EPDM
Seat gasket Metallic
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