Technical specifications Type 457, 458

Nominal Diameter at Inlet

DN 25 - DN 150 | 1" - 6"

Actual Orifice Diameter d₀

15 - 110 mm | 0.59 - 4.33 in

Actual Orifice Area A₀

177 - 9503 mm² | 0.274 - 14.730 in²

Pressure

2.5 - 300 bar | 36 - 4350 psig

Flange Rating Inlet

CL150 - CL1500 | CL150 - CL1500

Temperature (in accordance with DIN EN)

-85 to 550 °C | -121 to 1022 °F

Temperatur (nach ASME)

-29 to 538 °C | -20 to 1000 °F

Body Material

1.0619, 1.4581, 1.7357 | SA 216 WCB, SA 351 CF10M, SA 217 WC6

Valve Connection

Flange acc. to DIN EN 1092-1 or acc. to ASME B 16.5 or acc. to JIS 2220

Bellows Material (optional)

Stainless steel

Load Type

Spring loaded

Approvals

PED/DIN EN ISO 4126-1, PED/AD 2000-Merkblatt A2, ASME Sec. VIII Div. 1, CRN, AQSIQ, EAC