LIAG® DMV Pigging System

LAUFER DMV Product Recovery Systems are designed to recover high-value product, reduce waste, and maintain the highest hygienic standards in sanitary process lines. Built for applications handling viscous or fast-hardening media such as yogurt, dressings, chocolate, or toothpaste, these systems streamline production while reducing cleaning time and wastewater generation.

Each system features 3-A certified LIAG® Free Flow Arc Valves and precision-engineered product recovery components designed without dead pockets. The modular construction minimizes threads and clamp unions, eliminating typical hygienic risk areas. Even when welded in place, LIAG® valves can be easily disassembled for maintenance, ensuring long-term reliability and compliance with sanitary requirements.

Key Features

  • Maximum product recovery with minimal waste.
  • Safe separation of product and cleaning media.
  • Faster changeovers for improved efficiency.
  • Full CIP/SIP capability for hygienic performance.
  • Modular design reduces hygienic risk areas.
  • Shorter cleaning cycles and lower water use.
  • 3-A 101-00 and FDA compliant.
  • CRN certified.
DMV turning station

Industries

Operating Options

  • One-Way: Manual pig return.
  • Single Loop: Automatic return to the launch station with manual direction change (semi-automated).
  • Bi-Directional Turning/Cleaning Stations: Automatic return using LIAG® turning station (closed CIP/SIP system).
  • Double Loop (Bi-Directional): Automatic return using LIAG® pig diverter valves (closed CIP/SIP system).
  • Ring System: Fully closed, automated CIP/SIP system.

DMV Lip Pig – Reliable and Hygienic

The DMV system operates with a two-seal dynamic lip pig made from FDA-compliant silicone. Its flexible, homogeneous design provides a secure seal against the pipe wall while adapting to minor variations in pipe geometry. The pig passes standard 90° bends (R = 1.5 × D) and can be fitted with an encapsulated magnet for location and control.

liag pigging system

 

DMV Launching and Receiving Stations

dmv pig launching and receiving stationEach product recovery system is custom-engineered for its process environment. LIAG® launching and receiving stations ensure sterile, closed operation and optimized cleaning performance. Dynamic DMV lip pigs maintain consistent hygiene and enable efficient recovery of product between cleaning cycles.

System Advantages

  • Sterile and closed design.
  • No dead pockets with LIAG® CIP/SIP Free Flow Arc Valves.
  • Suitable for viscous and fast-hardening media.
  • Optional in-system pig cleaning.
  • Available in DN 40 – 100 / 1.5″ – 4″.
  • 3-A and FDA compliant.

Why Choose LAUFER DMV Product Recovery Systems?

  • Hygienic Design: Eliminates dead zones and reduces contamination risks.
  • Operational Efficiency: Faster changeovers and minimal product loss.
  • Sustainability: Cuts water use and waste for cleaner, greener operations.
  • Custom Engineering: Modular systems tailored to each process line.

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