The pig launcher/receiver (the "launcher/receiver") is the equipment that can receive and launch pig under pressure in the pipeline of liquid and gas. It is installed at both ends of the pipeline or the interim pressure regulating valve room of pipeline, as an important device to clean, remove residues and rust, scrape wax and apply coating.
Our company has organized the people in charge of each department to review the bidding documents of pigging package The sales department is responsible for the price, the technical department takes charge of technical conditions, the production department sees to the capacity and production period, the supply department checks the requirement and period of goods supply, the quality control department exams the quality and the financial department checks the cost which will ensure effective and reliable fulfillment of the bidding document (contract).
The sales department takes charge of the packaging and transportation of equipments. The manager sees to coordinating each competent department involving purchase, production, quality control and sale to ensure the goods to be delivered in due time under the contract and appoint special personnel to guarantee the goods are delivered to the place designated by the owner safely and rapidly. Our company shall assume the responsibility and compensate for the owner providing we fail to fulfill the contract, and the amount and mode of compensation shall be subject to the contract.
The pig launcher/receiver (the "launcher/receiver") is the equipment that can receive and launch pig under pressure in the pipeline of liquid and gas. It is installed at both ends of the pipeline or the interim pressure regulating valve room of pipeline, as an important device to clean, remove residues and rust, scrape wax and apply coating. Due to the pressurized working condition, the design, manufacture, test and acceptance are in strict accordance with ANSI B31.4 Liquid Petroleum transportation Piping System.
The launcher/receiver is composed of quick opening closure, main cylinder, reducer, sub-cylinder, inlet and outlet nozzle (the launcher as the inlet and the receiver as the outlet), pressure gauge nozzle, blowdown valve nozzle, vent valve nozzle, safety valve nozzle, saddle support (the intelligent pig launcher/receiver have balance port). The accessories that connect the launcher/receiver consist of pressure gauge, blowdown valve, vent valve, ball-passing indicator, safety valve as well as the flange, bolt, nut and pad that match with various interfaces. As required by the customers, the sliding filter bear basket, rotating crane and cathodic protection devices can be provided additionally.
Norms and Standards
The design, manufacture, test and acceptance of pig receiver meet the following norms and standards of the latest edition. If there are more than one standard, regulation and norm that meet the same requirement, the most stringent one and ISO9001 quality system shall be followed.
ANSI B31.4 Liquid Petroleum transportation Piping System
API Spec. 5L Specification for Line Pipe
ASME B31.3 Process Piping
API Spec. 6D Specification for Pipeline Valves (Gate, Plug, Ball &
ASME VIII Boiler and Pressure Vessel Code
API Spec.1104 Standard for welding pipelines and related facilities.
ASME Section IX Welding & Brazing Qualification
In general, the pig launcher/receiver are installed horizontally. For exceptional circumstances such as slope, well bottom and underground, the slant or vertical installation can be adopted upon considering safe conditions. The quick opening closure at the end is capable of secondary pressure relief, so that the pressure difference between the inside and outside maintains to be zero to ensure safe operation.