A Pig Signaller is a critical device in the pipeline industry, designed to detect, signal, and register the passage of a pig (Pipeline Inspection Gauge) as it travels through a pipeline. Pig Signallers is used in a variety of pipeline applications, including oil, gas, and liquid systems.
Basic Feature or Parameter | |||
| Removable Pig Signaler | B | C | D |
| Type | Intrusive | ||
| Indicator feature | Manual reset flag | Manual reset flag combined with electrical signals | Date and time display combined with electrical signals |
| Installing type | 2″Nipple welded. Design pressure up to 10000Psi | ||
| Plug body length _Correspond to total standoff | Meet the actual needs | ||
| Operating temperature | -20～120℃/Meet customer requirements | ||
| NACE MR – 01- 75 | Yes | ||
| Ingress protection | IP65/IP66 | ||
| Explosion-proof class | ExdⅡ BT4 | ExdⅡ BT4 | |
| Include DBB valve | Yes | ||
| Remove under pressure | Yes(The whole machine comes with a simple retriever_ two whole threaded studs) | ||
Optional Feature | ||||||
| ● Standard configuration — None ○ Optional configuration | ||||||
| Trigger type (B-bi-directional/F-Bi-directional feather/U-Uni-directional*) | ○/○/● | |||||
| Trigger mechanism-Flag interaction (No/Yes_ The flexibility of the trigger mechanism would be checked online) | —/● | —/● | —/— | |||
| Internal part material (316L SS/DSS/INCONEL) | ●/○/○ | |||||
| Flange/Body material(PTFE-coated A105N/304SS/316LSS/DSS/INCONEL, As per MR) | ●/○/○/○/○/○ | |||||
| The position of the Internal liquid surface(High_Need to heating/Low_With no need for heating) | —/● | |||||
| Switch type(DPDT/SPDT) | —/— | ○/● | ○/● | |||
| Switch rating(DC24V 3A/DC24V 5A) | —/— | ●/○ | ●/— | |||
| Electrical connection size (M20×1.5(F)/1/2″NPT(F)) | —/— | ●/○ | ●/— | |||
| Retriever(Two full thread studs/ special tools) | ●/○ | |||||
| Insert depth adjustment range(±10mm) | ● | |||||
| * Standard configuration of Uni-directional trigger is ball shape. | ||||||
Corresponding relationsbetween trigger and Insert depth (In pipe) | ||||||
| Trigger type | Bi-directional | Bi-directional feather | Uni-directional | |||
| Insert depth (In pipe) | 21mm | 30mm | 13mm | |||
I. Introduction to EMT Pig Signaller
Purpose and Functionality in Pipeline Operations
EMT Pig Signallers stand at the forefront of pipeline maintenance, actively tracking the passage of pigs through the intricate network of pipeline systems. So these devices play a pivotal role in signaling the presence and movement of pigs, tools work for cleaning and maintaining pipelines.
As they traverse the pipelines, EMT Pig Signallers reliably detect and indicate their passage, ensuring that essential maintenance and cleaning operations can be carried out with precision and without interruption.
The functionality of EMT Pig Signallers is not just about detection—it’s about providing a continuous stream of information that is vital for the smooth operation of pipeline systems. These signallers enable operators to pinpoint the exact location of pigs at any given moment, thereby facilitating timely interventions and preventing potential operational delays.
Importance of Pig Signallers in the Industry
EMT Pig Signallers play a critical role in the industry by actively contributing to the prevention of pipeline blockages. They serve as the first line of defense against the buildup of deposits that can lead to reduced flow efficiency or, in worse cases, complete blockage. By ensuring that effectively monitoring and tracking the pigs, these signallers help maintain the flow of product and safeguard the pipeline’s integrity.
Moreover, EMT Pig Signallers are instrumental in maintaining product purity. By providing real-time detection of pigging operations, they ensure that the cleaning processes are executed as planned, thereby preventing cross-contamination of different batches of product flowing through the pipelines.
Beyond maintenance and operational efficiency, EMT Pig Signallers are vital for ensuring overall safety. By enabling precise monitoring, they help to avoid the risks associated with overpressure and potential pipeline damage, which can have significant safety implications. Furthermore, their use extends the longevity of pipeline infrastructure by ensuring that regular and effective maintenance is conducted, thus preventing long-term wear and deterioration.
In essence, EMT Pig Signallers are not just tools but essential guardians of pipeline operations. They empower the industry to maintain high standards of efficiency, purity, and safety, thereby ensuring that the lifelines of the energy and utilities sectors operate without fail. Through vigilant monitoring and reliable performance, these signallers are indispensable allies in the pursuit of uninterrupted pipeline operations.
II. Design Features of EMT Pig Signaller
Bi-directional Trigger Mechanism
Firstly, the EMT Pig Signaller emerges as a pioneering solution in pipeline maintenance, thanks to its bi-directional trigger mechanism—a feature that sets a new standard for reliability. This mechanism confidently ensures the detection of pigs regardless of how the signaller is oriented upon installation, effectively eliminating traditional concerns about the directionality of pig detection.
By doing so, it offers a robust guarantee that the detection of pigs within the pipeline is accurate and reliable, providing operators with a dependable tool that safeguards the pipeline’s integrity.
Error-proof Installation Benefits
Then beyond its innovative trigger, the EMT Pig Signaller shines in its installation process. Its design champions an error-proof approach, dramatically reducing the risk of mistakes during setup. This not only offers operators peace of mind but also translates into substantial savings by cutting down the downtime often associated with installation errors. The need for post-installation corrections drops significantly, allowing for a smoother, more efficient operational flow within pipeline management.
User-friendly Mounting Options
At last, adaptability in mounting options further illustrates the user-friendly nature of the EMT Pig Signaller. Whether the pipeline system requires a threaded boss or a flange connection, the signaller accommodates with ease. This adaptability ensures a quick, hassle-free installation that facilitates a swift return to pipeline operations, minimizing the interruption to the workflow.
360-degree Operational Capability
The 360-degree operational capability of the EMT Pig Signaller allows it to perform unfailingly, regardless of its rotational placement on the pipeline. This versatility is not just a matter of convenience; it simplifies inventory and spares management significantly. Pipeline operators no longer need to stock multiple versions of signallers for different orientations, streamlining their operations and reducing the complexity of managing pipeline maintenance components.
In summary, the design of the EMT Pig Signaller embodies a forward-thinking approach to pipeline maintenance. With its omni-directional trigger, error-proof installation, versatile mounting options, and comprehensive operational capability, it stands as a testament to EMT’s dedication to innovation, safety, and efficiency in pipeline management technologies. Operators can rely on this tool for a seamless, interruption-free workflow that maintains the high standards required in the industry.
III. Operational Reliability
Elimination of Incorrect Installation Issues
The EMT Pig Signaller stands out for its resilience against installation errors, a common pitfall in pipeline maintenance. The design team at EMT has actively engineered a solution that circumvents the orientation challenge entirely.
By incorporating an omni-directional trigger mechanism, the signaller eradicates the risk of non-operational installation, delivering unwavering reliability in detecting pigs. This proactive approach streamlines the installation process, allowing operators to fit the device efficiently and correctly on the first attempt, thereby avoiding costly downtime and the frustration of re-installation.
Bi-directional Installation Concerns in Other Models
Moreover, the EMT Pig Signaller diverges from the industry’s conventional models by eliminating the risks with bi-directional sensitivity. Other signallers on the market often require precise alignment with the pig’s path, an aspect that can lead to misalignment and failure to detect the pig. In stark contrast, EMT’s design guarantees detection from any direction, ensuring that the signaller captures every pig passage without the risk of missing due to misorientation.
EMT’s commitment to operational reliability is further exemplified in the ease with which their signallers integrate into existing pipeline systems. The flexibility of the 360-degree operational capability means that regardless of how the signaller is mounted—whether via a threaded boss or a flange connection—it remains fully functional. This feature simplifies inventory management and reduces the need for special training, as the installation process is the same in every orientation.
In summary, the EMT Pig Signaller exemplifies operational reliability through its innovative design. It actively dispels the concerns of incorrect installation and aligns with industry needs for a fail-safe, user-friendly device. Pipeline operators can depend on the EMT Pig Signaller to consistently provide accurate indications of pig location, thereby optimizing pipeline integrity and maintenance operations.
About EMT Piping
Shenyang Institute of Sources Technology Development and Shenyang EMT Piping Technology Co., Ltd. are manufacturers of products for corrosion monitoring and pipeline cleaning. Since our inception in 1993, we have been delivering pipeline equipment and associated services to pipeline industries. It including chemical processing, oil and gas, and water treatment.
To ensure optimal performance and efficient resource utilization, we often deliver customized products to meet the unique requirements of each project.
Our rigorous and unwavering commitment to quality control over the years has made our pig indicators listed as the sole Chinese brand products in the optional products in multiple CNOOC projects. As early as 2010, we began providing products for oil projects in the Asia, Africa and Latin America region, with long-term and ongoing projects such as PDOC, DPOC, Hafaya, Misan, and Graf oil fields, and without receiving any negative quality feedback.
At present, our products have also been recognized by companies such as CCED, Oxy, Saudi Aramco, and Shell. Then we have become members of the “Pigging Products and Services Association (PPSA)”, presenting yet another way for pipe project contractors to access affordable, top-tier products.
Moving forward, we remain committed to perpetual self-improvement. We will provide superior quality products and advanced pigging solutions for industrial pipelines, striving tirelessly towards building EMT into an industry benchmark within the pipeline equipment industry.
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