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Type 484 LESER Clean Service pressure relief valves are designed, marked, produced and approved according to the requirements of the following regulations:
Technical Specifications for Type 484
Nominal Diameter at Inlet
DN 25 - DN 40 | 1'' - 2''
D - F
Actual Orifice Diameter d₀
13 - 25 mm | 0.512 - 0.984 in
Actual Orifice Area A₀
133 - 491 mm² | 0.206 - 0.761 in²
0.1 - 16 bar | 1.5 - 232 psig
Temperature (in accordance with DIN EN)
-45 to 150 °C | -49 to 302 °F
1.4435 (BN2) | SA 479 316L
Inlet: vessel connection type 5034 for welding into the vessel Outlet: normally welded end connection acc. to ASME DIN 11850, Clamps acc. to ASME BPE / DIN 32676, ISO 2852 or DIN EN ISO 1127, Aseptic clamp acc. to DIN 11864 T1 Series A or B (with nut), DIN 11851 or Neumo Sterile aseptic thread (with nut)
Bellows Material (optional)
PED/ DIN EN ISO 4126-1, PED/ AD 2000-Merkblatt A2, ASME Section XIII certified for Section VIII Div. 1 service, CRN, AQSIQ, EAC
HyTight Assembly Designed and manufactured acc. to: DIN 11866, ASME BPE, EN 1672-2, DIN ISO 14159, USP class VI and FDA 21 CFR
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