Cup type batching pigs are used for standard pigging operations such as filling and dewatering during hydrostatic testing, routine batching operations and product removal. Cup pigs can also be equipped with brushes, blades or gauging plates, allowing it to perform all the duties of batching, gauging, hydrostatic testing, product removal, pre-commissioning and on-stream cleaning.
The cup design allows for negotiating multi internal pipe diameters and up to 15% reductions or deformations in nominal same size of a pipe. Cup pigs can be easily configured with discs in lieu of cups or adding guide, sealing and spacer discs for additional sealing capabilities.
Uni - Directional Batching Pigs are the simplest models of cup pigs. They are generally used as a barrier between two or more fluids flowing in the same pipeline and thereby reducing hazards and losses due to fluid contaminations. They are also used for removing the products from the pipelines. The conical cup design allows negotiation of pipes internal diameter. We could do the design so that the seals, spacers and guide discs can be placed on the same body, in place of the cups as per the requirements of the client.
Uni - Directional Cleaning Brush Pig has a similar shape as compared to batching pigs. The main difference is that cleaning brush pigs has brush assembled along with the cups.
There are basically 2 types of brushes that are assembled on the pig they are:
1. Circular Brushes
2. Spring Brushes
They are used for cleaning of rust, mud, sand, wax, oxides, unwanted organic materials or any other foreign particles present inside the pipeline.
Uni - Directional Gauging Pigs basically has a gauge plate assembled with the pig. Gauging pigs are generally used to find out excess weld penetration or any other deformations like dents or thicker internal diameters. They are also used to prove the ovality of the pipe prior to caliper or intelligent pigging. These plates normally have slot cut in them to find out the deformation easily. Gauge plates are generally made around 5-10% lesser as compared to the inner diameter of the pipe. It’s normally fabricated of Aluminum Alloy AA1100-H14.
Uni - Directional Magnetic Pig has high force Magnetic boxes fitted on the pig bodies. These are normally used for cleaning of any ferrous material that may present inside the pipeline they can also be used for pig tracking. They are normally mounted on the middle of the steel pig body.