LESER Clean Service Safety Valve Type 484
LESER Clean Service Safety Valve Type 484
LESER Clean Service Safety Valve Type 484

Clean Service

Type 484

Safety valve with small to medium capacities and a low dead space ratio through a weldable vessel connection

Approvals

LESER Clean Service safety valves of Type 484 are designed, marked, produced and approved according to the requirements of the following regulations:

  • LESER CE Approvel
  • LESER ASME Approvel
  • LESER EAC Approvel
  • LESER Chinese TS Approvel

Technical specifications Type 484

Nominal Diameter at Inlet
DN 25 - DN 40 | 1'' - 2''
Orifice
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
Pressure
0.1 - 16 bar | 1.5 - 232 psig
Temperature (in accordance with DIN EN)
-45 to 250 °C | -49 to 482 °F
Body Material
1.4435 (BN2) | SA 479 316L
Valve Connection
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)
EPDM
Load Type
Spring loaded
Approvals
PED/ DIN EN ISO 4126-1, PED/ AD 2000-Merkblatt A2, ASME Sec. VIII Div. 1, CRN, AQSIQ, EAC
Specials
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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