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Product

Clean Service Safety Relief Valves Leser

Price: Contact

  • Model: Clean Service
  • Trademark: LESER
  • Origin: Germany
  • Leser Safety valves for food, beverage and pharmaceutical applications

    Short and uniform delivery times for Clean Service safety valves: Get 155 top runner variants in two weeks. These top runners cover 90% of the supplied Clean Service valves.

    • Better cleaning through:
      • Low dead space ratio L/D from up to < 0.33
      • HyTight Assembly: gap-free design of the internal parts
      • Surfaces packages according to ASME BPE and DIN 11866 with a high surface quality up to Ra max = 0.375 µm / 15 µinch
    • Easy process integration through cleaning (CIP) or sterilizing (SIP) with pneumatic lifting device possible
    • Worldwide approvals, FDA-compliant elastomers and a wide range of aseptic connections
    • Alternative to bursting disc

    Industries

    • Pharmaceutical 
    • Food and Beverage 

    Approvals

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

    Valve Types

    • Type 481 
      • Small capacity at high set pressure
      • DN15 - DN25 (3/4" - 1")
    • Type 483 
      • Small to medium capacity, best cleanability and a variety of aseptic connections
      • DN 25 - DN 40 (1" - 2")
    • Type 488 
      • High capacity, variety of aseptic connections
      • DN 25 - DN 100 (1" - 4")
    • Type 485 
      • Small to medium capacity, low dead space ratio through weldable integrated pipework connection
    • Type 484 
      • Small to medium capacity, low dead space ratio through weldable vessel connection

     

    Technical data Clean Service

    • Nominal Diameter at Inlet
      • DN 15 - DN 100 | NPS 3/4'' - NPS 4''
    • Actual Orifice Diameter d₀
      • 10 mm - 92 mm | 0.394 in - 3.622 in
    • Actual Orifice Area A₀
      • 78.5 mm² - 6648 mm² | 0.122 in² - 10.304 in²
    • Pressure
      • 0.1 bar - 68 bar | 1.5 psig - 986 psig
    • Temperature (in accordance with DIN EN)
      • -45 °C to 250 °C | -49 °F to 482 °F
    • Body Material
      • 1.4404, 1.4435 (BN2) | SA 479 316L
    • Valve Connection
      • Large Selection of Aseptic Connections: Threaded, Flanged, Clamped, Welded
    • Bellows Material (optional)
      • EPDM
    • Load Type
      • Spring-loaded

    Products range:

    • Type 481 - Cap H2 - Inlet-Clamp connection - Outlet- Threaded connection
    • Type 481 - Packed knob H4 - Inlet - Aseptic clamp and nut - Outlet- Threaded connection
    • Type 483 - Packed knob H4 - Inlet and outlet - Flange connection
    • Type 483 - Pneumatic- lifting device H8 - Inlet and outlet - Clamp connection
    • Type 484 - Cap H2-Inlet-Vessel connection Type 5034 - Outlet- Welded end connection
    • Type 484 - Packed knob H4 - Inlet- Vessel connection Type 5034 - Outlet- Welded end connection
    • Type 485 - Cap H2- Inlet-Integrated pipework connection Type 5034 – Outlet- Welded end connection
    • Type 485-Pneumatic lifting device H8-Inlet- Integrated pipework-connection Type 5034-Outlet- Flange connection
    • Type 488 - Cap H2 - Inlet and outlet - Clamp connection
    • Type 488-Packed knob H4-Inlet and outlet-Flange connection

     

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