High PerformanceType 441 IC

Full lift safety relief valve with full nozzle, ASME-, BS-, DIN flange connections. Technical data

Applications & Industries

Pressure relief within 5% and 10% overpressure
Frequently used in gas and liquid applications up to 40 barg. Steam application up to 32 barg.
Nominal sizes up to DN 200
High required mass flows
Easy maintenance

Set pressure (according to ASME)	0.1 - 40 barg \| 15 - 580 psig
Temperature(according to ASME)	-196 to 538 °C \|-321 to 1000 °F
Capacity	Orifice D to T
Connections DIN EN 1092	DN 25 - DN 200
Connections ASME B16.5	NPS 1 - NPS 12
Flange class Inlet DIN EN 1092	PN 10 - PN 40
Flange class Inlet ASME B16.5	Class 150 - Class 600
Body material	SA 216 WCB, SA 351 CF8M, SA 351 CF8, SA 217 WC6, SA 352 LCB, SA 351 CF3, SA 351 CF3M, SA 995 Gr 4A CD3MN (Duplex), SA 494 M35-1 (Monel), SA 494 CX2MW (Hastelloy)
Flow diameter d₀	23 - 165 mm \| 0.906 - 6.496 in
Flow area A₀	416 - 21385 mm² \| 0.644 - 33.147 in²
Faltenbalgwerkstoff (optional)	Stainless steel
Seat seal	Metallic, Soft Sealing