PIG Product Recovery

Application

The PIG system is ideal for the recovery of any product remaining in a pipeline at the end of the transfer process. As this product can be of a high value the PIG system recovers the product removing it from the pipelines and preparing the pipeline for a CIP process. Another benefit is the reduction of the fluid sent to the sewage treatment plant that results in saving energy and water.

The main application of the system is viscous media. Among the products treated there are chocolates, marmelades, confectionary creams in the food-processing industry, or gels, creames and other body care products of high value in the cosmetic industry.

Operating principle

The system comprises a launcher, a receiver, a PIG (or a sphere), two position detectors (one for the lancher and the other for the receiver), four automatic butterfly valves and 2 KH multi-way valves.
The basic principle is that the sphere is put to the launch position Then the sphere is driven by a propellant (normally compressed air) down the pipeline to the receiver thus recovering any product left in the pipeline. When recovery is complete, the PIG is situated at the receiver and the system can be cleaned, the PIG can also be cleaned durig the normal CIP routine. Upon completion of the CIP process the sphere is located in the launcher leaving the plant ready for the next production run.

Design and features

Standard system: SIL PIG.
Hygienic system.
High level of product recovery.
PIG can pass through 1.5D bends.
Connections: DIN (standard).
Size ranges: DN40 (1 ½”) to DN80 (3″).

Options

Connections: RJT, SMS, clamp, flanges, etc.
Spheres: EPDM, Nitrile, Neoprene and Viton®.
Gaskets: Silicone, NBR, PTFE, Viton®.
STERIPIG system.
Manual system (launch and/or reception)
Various levels of automation.
Control panel.
Second drain port.

Materials

Metallic product contact surfaces: AISI 316 L
Other metal parts: AISI 304
PIG: Silicone
Gaskets: EPDM

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