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DMV - Pigging System for low-germ processes

Sterile processes pose stringent demands on system components

For this processes we offer DMV pigging systems featuring CIP/SIP LIAG® free flow shutter valves and specifically designed pig launching and receiving stations without dead pockets. Simplifying the modular component design, thread and clamp unions are virtually no longer needed, minimizing typical hygienic risk areas by design. All LIAG® arc valves, even when welded in place, can be easily disassembled for maintenance.

Operating procedures

DMV lip pig - reliable tight

The DMV pigging System works with a 2-seal lip pig and are of homogenous hygienic design. They offer excellent cleaning effect and are virtually free of wear. Two dynamic lips form

The pigs are highly flexible and can pass tight radii (R= 1.5 x D). Dynamic lip pigs are optionally equipped with a magnet for location and control. A reliable seal with the pipe wall, the action of pressure and counter pressure forms the seal to the pipe wall, compensating for minor deviations in the pipe geometry.


  • Sterile and closed pipe system
  • No dead pockets with LIAG® CIP/SIP free flow arc valves
  • Optimized cleaning result with dynamic DMV lip pigs
  • Capable of passing 90° standard bends (R= 1.5 x D)
  • Available with in system cleaning of the pig
  • Optimally suited for hygienic processes and highly viscous fast hardening media, e.g. yoghurt, dressings, softcheese, chocolate, tooth paste, etc.
  • Optionally 3-A 101-00 and FDA compliance

DMV pig launching and receiving station

To satisfy the diverse requirements of the wide range of processes, the optimum pigging procedure is always designed to the specific project.


Data Sheets

Pigging System Questionary

Data sheet for DMV lip pig


LIAG® DMV System (3-A 101-00)


DMV Pigging System

Technical Data Overview

Nominal sizes:
Basic facts:
Radius of the bends:capable of passing 90° Standard bends R= 1.5 x D
Multi mode:Manual, semi or fully automated
DMV pushing media:e.g. product, water, air etc.
Inox parts in contact with product:AISI 316L (1.4404 / 1.4435)
Other inox parts:AISI 304 (1.4301)
O-ring seals:EPDM, FPM (Viton®), FEP, other grades upon request
Shutter:DyneonTM TFM 1600, alternatively: Teflon +15% Peek, Tecapeek®
DMV lip pig:Silicone with FDA compliance
In contact with product:Ra ≤ 32µin (Ra ≤ 0.8 µm)
Short-term:140°C (284°F) - Optional up to 200°C (392°F)
Range of temperature:
Standard:-25°C (13°F) up to +110°C (230°F)
Optional: -25°C (13°F) up to +150°C (302°F)
Pushing pressure DMV lip pig:
Depending on product (viscosity) and length of pipe work:
min. 1 bar - max. 10 bar
(min. 14.5psi - max. 145 psi)
Further option:
3-A 101-00 and FDA compliance
Important note:
DMV pigs should only be used in pigging systems, which are designed for this type of pig. The supplier will not assume any kind of function warranty or product liability and no responsibility for any kind of damage to persons or property due to improper use.

ROI calculator

Enter specific values for your application into the red marked fields. Press the calculation button to calculate totals. For decimal values please use the "dot" symbol.

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