LIAG® Sanitary Free Flow Arc Valves

LAUFER Free Flow Arc Valves are engineered for high-hygiene processing where product purity, reliability, and efficiency are critical. Designed according to 3-A and FDA sanitary standards, these valves feature a completely clear passage with no dead pockets, ensuring full cleanability and minimal product loss.

Ideal for viscous or particulate media, they deliver unrestricted flow and superior CIP/SIP performance. With a simple, durable design and minimal wear parts, LIAG® Arc Valves provide dependable, low-maintenance operation and are especially suited for hygienic pigging and product recovery systems.

Key Features

  • 3-A 51-01 and FDA compliant.
  • Clear passage with no pressure loss.
  • CIP/SIP capable design for total cleanability.
  • Self-centering shutter segment with single moving O-ring.
  • Minimal components and wear parts.
  • Can be dismantled even when welded in place.
  • Operating pressure up to 290 psi (20 bar).
  • Temperature range up to 392°F (200°C).
  • Available in 2-way, 3-way, and pig diverter configurations.
  • Constructed from 316L stainless steel with EPDM, FKM (Viton®), or PTFE seals.
  • CRN certified.
liag free flow arc valves

Industries

Why Choose LAUFER Arc Valves?

  • Hygienic by Design: Eliminates dead zones for complete cleanability and product safety.
  • Optimized for Pigging: Clear passage supports efficient product recovery and reduced waste.
  • Low Maintenance: Minimal components ensure long service life and easy upkeep.
  • Versatile Integration: Compatible with various configurations and process connections.

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