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product page - LESER type 484 clean service


TYPE 484

LESER type 484 clean service
LESER type 484 clean service
LESER type 484 clean service


Pharmaceutical >

Food and Beverage >


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

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asme logo


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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

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)


Load Type

Spring loaded


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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LESER Clean Service Catalogue
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