Complete Guide to Pig Launcher & Pig Receiver Systems for Oil & Gas Pipelines

Pipeline pigging systems play a critical role in maintaining the safety, efficiency, and long-term reliability of oil, gas, and industrial pipeline networks. Among the key components of any pigging operation, pig launchers and pig receivers are essential equipment designed for pipeline cleaning, dewatering, inspection, and operational maintenance.

As global pipeline infrastructure continues to expand across oil & gas transmission, refinery systems, natural gas facilities, and industrial process plants, modern pigging systems are increasingly required to operate under high pressure, harsh environments, and demanding operational conditions.

RKSfluid provides customized pig launcher and pig receiver systems engineered for onshore and offshore pipeline applications, offering reliable solutions for safe and efficient pigging operations.

What Is Pig Launcher and Pig Receiver？ 

A pig launcher is a pressure vessel used to safely insert a pipeline pig into a pressurized pipeline system. The pig is then propelled through the pipeline by the flow of the process medium.

A pig receiver is installed at the downstream end of the pipeline to safely capture and remove the pig after the pigging operation is completed.

Together, pig launcher and receiver systems form the core equipment of a complete pipeline pigging system.
These systems are widely used for:

• Pipeline cleaning 
• Debris removal 
• Dewatering operations 
• Internal pipeline inspection 
• Product separation 
• Corrosion monitoring 
• Commissioning and maintenance operations

Why Pigging Systems Are Important in Pipeline Operations

Over time, pipelines may accumulate:

• Wax deposits 
• Scale buildup 
• Sediment 
• Liquids and condensates 
• Corrosion products 
• Operational debris 

Without regular pigging operations, these contaminants can reduce flow efficiency, increase pressure loss, accelerate corrosion, and create operational risks.

Pigging systems help pipeline operators:

• Improve flow efficiency 
• Reduce energy consumption 
• Extend pipeline service life 
• Maintain pipeline integrity 
• Reduce unplanned shutdowns 
• Improve operational safety 

For long-distance transmission pipelines and high-pressure systems, pigging operations are considered an essential part of routine maintenance management.

How Pig Launcher & Receiver Systems Work

During operation, the pig is loaded into the launcher barrel through a quick opening closure.
After the launcher is sealed and pressurized, the pipeline medium drives the pig through the pipeline. As the pig travels, it performs cleaning, separation, or inspection functions depending on the pig type used.
At the receiving end, the pig enters the pig receiver, where it is isolated, depressurized, and safely removed.
Modern pigging systems allow pigging operations to be performed without shutting down the pipeline, significantly improving operational efficiency and reducing maintenance downtime.

Main Components of a Pigging System

A typical pig launcher and receiver system includes:

• Launcher barrel
• Receiver barrel
• Quick opening closure
• Pig signaller / pig detector
• Pressure gauges
• Vent and drain systems
• Isolation valves
• Safety interlock mechanisms
• Structural skid assembly

RKSfluid pigging systems are designed for safe operation, easy maintenance, and long-term service reliability under demanding industrial conditions.

Applications of Pig Launcher & Receiver Systems

Pigging systems are widely applied in:

Oil & Gas Transmission Pipelines

Used for cleaning, inspection, and maintenance of crude oil and natural gas pipelines.

Gas Gathering Systems

Helps remove condensates and debris from gas collection pipelines.

Refinery & Petrochemical Facilities

Supports product separation and pipeline maintenance operations.

Offshore Platforms

Designed for high-pressure offshore pipeline systems where operational safety is critical.

Water & Industrial Pipelines

Used for dewatering, cleaning, and commissioning operations.

Key Features of RKSfluid Pigging Systems

Custom Engineering Solutions

RKSfluid provides customized pig launcher and pig receiver systems based on:

• Pipeline diameter
• Operating pressure
• Medium characteristics
• Pig type
• Installation environment
• Project specifications

Customized skid-mounted solutions are available for EPC projects and station integration applications.

High-Pressure Design Capability

Our pigging systems are designed for demanding operating conditions with:

• Nominal Diameter: DN150 – DN2000
• Design Pressure: 1.6 MPa – 16 MPa
• Test Pressure: 1.5 × design pressure
• Applicable Media: Oil, gas, water, petroleum products

Compliance with International Standards

RKSfluid pigging systems are designed in accordance with:

• ASME VIII Div.1
• ASME B31.3
• ASME B31.4
• ASME B31.8

These standards ensure structural integrity, operational safety, and long-term reliability.

Quick Opening Closure Design

RKSfluid offers multiple quick opening closure types for pigging systems, including:

• Bandlock Type
• Clamped Type
• Inserted Type

Compared with traditional bolted closures, quick opening closures significantly reduce maintenance time and improve operational safety.

Integrated safety interlock mechanisms help prevent accidental opening under pressure conditions.

Why Choose RKSfluid as Your Pigging System Manufacturer?

RKSfluid specializes in pipeline process equipment and pigging systems for oil & gas and industrial applications.

We provide:

• Custom-engineered pigging solutions
• Factory-direct manufacturing
• OEM & project-based production
• Technical support for EPC projects
• Flexible material selection
• Onshore & offshore application experience
• Integrated skid-mounted systems

Our engineering team works closely with customers to develop pigging systems tailored to actual pipeline operating conditions and international project requirements.

Pig launcher and pig receiver systems are essential equipment for modern pipeline maintenance, operational safety, and long-term pipeline integrity.

Whether for oil & gas transmission pipelines, offshore facilities, refinery systems, or industrial process pipelines, properly designed pigging systems can significantly improve operational efficiency, reduce maintenance costs, and extend pipeline service life.

If you are looking for reliable pig launcher and pig receiver solutions for your pipeline project, RKSfluid is ready to provide professional technical support and customized engineering solutions tailored to your operating conditions.

Our team supports onshore and offshore pipeline projects with factory-direct manufacturing, flexible customization, and international-standard production capabilities.

Feel free to contact us for technical consultation, product selection assistance, or a customized quotation for your pipeline pigging system requirements.