Type 483, 484, 485, 488

Safety Valves for Sanitary and Clean Service

LESER has developed five safety valve types, known collectively as the "48x series", for protection of systems with special cleanliness requirements ("Clean Service": systems for foodstuffs, beverages, pharmaceuticals and cosmetics).

The properties common to the "48x series" are:
Low Dead Space
High Surface Quality
Free of Crevices
CIP, SIP and COP Capability

The four types differ in capacities and opening characteristics:
Type 483:
Safety relief valve for small and medium mass flows
Applications:
Pipelines
Stainless steel reactors/vessels

Type 484:
Safety relief valve with connection direct to vessel
Applications:
Fermenters
Bio-reactors

Type 485:
Safety relief valve with integrated pipework connection
Applications:
Pipework protection when direct vessel protection is impossible or not desired

Type 488
Full lift safety valve for medium and large mass flows
Applications:
Autoclaves
Laboratory facilities
Beverage industry (bottling plants (mixers) and storage tanks)

The safety valves of the 48x series can be fitted with manually lockable lifting devices H4 to hold open at a small lift, and with pneumatic lifting devices H8 for automated systems (CIP process).

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Advance Valve Inc. 212 Fabricator Drive, Fenton, Mo. 63026
Toll Free: 1-800-875-8716 | Phone: (636) 343-8525 | Fax: (636) 343-9509