Description
The EMT Pig Accessories range is a family of pigging-support components that detect, indicate, and retrieve pipeline pigs without shutdown. ASME B31.4 and NACE MR0175 compliant.
What Is the Pig Accessories Range?
The Pig Accessories range is a set of pigging-support components built by EMT for oil and gas pipelines. It detects pig passage, signals arrival at the receiver, and retrieves pigs from launcher and receiver traps. The range covers pig signallers, pig indicators, non-intrusive pig detectors, and mechanical or hydraulic retrieval tools.
Key points:
– Full detection chain — signaller, indicator, and detector cover every passage point on a pigging run.
– Non-intrusive option — ultrasonic detector reads pig passage without weld penetration or shutdown.
– Retrieval ready — mechanical and hydraulic tools extract stuck pigs from 2″ to 48″ lines.
Unlike generic wall-mounted beacons, the EMT Pig Accessories range integrates with ASME B31.4 pig traps and keeps the line live during confirmation.
What Problem Does a Pig Accessories Range Solve?
Operators often lose track of a pig on a long crude oil run. The pig stalls in a bend; crews crack open the trap blind, risking pressure release and downtime.
Q: How do I confirm a pig reached the receiver without opening the trap?
A: A pig signaller or non-intrusive detector on the Pig Accessories range confirms passage in real time. The indicator flags arrival at the receiver, so crews open the trap only after confirmation. This avoids blind opening and keeps the line safe.
Product Parameters
The following specifications apply across the EMT pig accessories range. For custom pig size or connection, contact our engineering team.
| Transmitter | |
|---|---|
| Intelligent Digital Transmitter | ![]() |
| High-Power Transmitter | ![]() |
| Veratile Transmitter | ![]() |
| Recevier | |
| LCQZ-JS Smart Tracking And Positioning Receiver | |
| LCQZ-TG Smart Passed Alarm Indicator | ![]() |
| LCQZ-BT High Sensitivity Receiving | ![]() |
| Other Accessories | |
| Gauging Disc:The aluminium gauging plate, part of pipeline cleaning tools, checks pipe inner diameter and detects dents to ensure smooth pig passage. |
|
| Spring Steel Brush:The carbon steel spring brush, a pig accessory, scrapes rust, wax and scale on pipe walls. Its elasticity adapts to elbows for full cleaning. |
|
See also:
– Pig Launcher and Receiver
Product Advantages
- Live passage confirmation — signaller and detector report pig position without line shutdown.
- Non-intrusive reading — ultrasonic detector needs no weld penetration or pressure boundary break.
- Full size coverage — one range serves 2″ to 48″ pipelines, cutting spare-part complexity.
- Harsh-service materials — 316L and NACE MR0175 grades resist sour service and washout.
- Tool-free retrieval — hydraulic retrieval tool frees stuck pigs with rated force, no cutting.
Where Is the Pig Accessories Range Used?
- Crude oil trunklines — passage confirmation on long-haul runs.
- Gas transmission networks — receiver confirmation before trap opening.
- Water injection lines — pig tracking in sweet and sour service.
- Refinery tank farms — launcher and receiver trap monitoring.
- Offshore platforms — compact non-intrusive detector in space-limited skids.
About EMT
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, and 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.

Frequently Asked Questions
Q: What is included in a pig accessories package?
A: The EMT range covers pig signallers, indicators, non-intrusive detectors, and retrieval tools. Pick only the items your run needs; all share the same material and pressure ratings.
Q: Can I install a pig detector without welding?
A: Yes. The non-intrusive ultrasonic detector clamps on the pipe and reads passage without wall penetration. It fits lines where hot work is restricted.
Q: What pig sizes do the accessories fit?
A: The range fits 2″ to 48″ (DN50–DN1200) pigs. Give us your pig diameter and we match the signaller or detector bore.
Q: Are the materials sour-service rated?
A: Yes. Bodies use 316L stainless steel or A105, and wetted parts meet NACE MR0175 / ISO 15156 for H2S service.
Q: How fast can EMT deliver?
A: Standard accessories ship in 4–6 weeks. Custom connections or sizes need 6–10 weeks after drawing approval.
Related Product

This pig is fitted with an aluminium gauging plate and carbon steel spring brushes for pipeline inspection and cleaning. The aluminium gauging plate measures the internal diameter and identifies dents or pipe deformations during travel. The carbon steel spring brushes scrape off rust, wax and hard scale adhered to pipe walls. With flexible design, it can smoothly pass through elbows and reducers. It integrates cleaning and gauging in one run, saving operation time. Made of durable materials, it delivers stable performance for oil, gas and liquid pipelines. It helps operators assess pipe condition while removing deposits efficiently.












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