PRX Live Gas Main Inspection System
Built in Collaboration with Gas Utilities, for Gas Utilities
Our PRX Live Gas Main Camera Inspection Systems have been an invaluable resource for some of the largest gas utilities to assist with addressing damage prevention, water intrusion, unlocatable PE and other issues involving gas distribution networks. We have built the most comprehensive and innovative live gas main camera systems which are designed from the ground-up to provide gas utilities with the highest quality, most cost effective and reliable pipeline inspection possible.
Why Choose a PRX Camera?
Designed solely for live gas main inspection; This is not a repurposed sewer camera!
Three unique camera camera systems to fit your needs: PRX 250, PRX Mini and PRX Dual
Futher travel distances reduce excavation costs; Push up to 400ft in either direction from within a 2″ PE main
Remote, motorized operation improves inspection quality and safety
Automated camera centering ensures a clear view of the entire pipe, not just the bottom
Field-Proven Products Trusted by Gas Utilities for over 15 years













Which PRX system is right for you?
Which PRX Camera System is Right for You?
Select the diameter and materials would you like to inspect:

PRX Dual Live Gas Main Inspection System
The PRX Dual Live Gas Main Camera Inspection System combines two of the most comprehensive, innovative live gas camera systems to provide natural gas utilities with the highest quality, most cost effective and reliable pipeline inspection possible for 2″ PE and 4 – 12″ PE, Steel and Cast Iron mains.
System specifications include:
- Universal knuckle design allows for operation with both standard camera head and miniaturized camera head
- Wide angle, fixed camera types and 15-inch daylight readable display
- Motorized cable feeder with a tether length of 400′ or 120m
- Custom no-blow launch tube for MAOP at 60psi or 4bar

PRX250 Live Gas Main Inspection System
The PRX250 Live Gas Main Camera Inspection System is built for the internal inspection of plastic, steel and cast iron gas mains ranging from 4 – 12″ in diameter. Built-in centering springs to provide a broad, centered view from inside the pipe with a wide angle, fixed camera type and a 15-inch daylight readable display unit.
Other system specifications include:
- Motorized cable feeder with a tether length of 300′ or 92m
- Custom no-blow launch tube for MAOP at 60psi or 4bar
- Entry with 1.5″ NPT or 1.75″ drilling minimum

PRX Mini Live Gas Main Inspection System
The PRX Mini Live Gas Main Camera Inspection System is designed for inspecting your pressurized 2″ and 4″ PE and Aldyl-A gas distribution mains. Utilizing angular launch, our miniaturized camera travels up to 400ft in either direction from one excavation.
Other system specifications include:
- Wide angle, fixed camera type and 15-inch daylight readable display
- Motorized cable feeder with a tether length of 400′ or 120m
- Custom no-blow launch tube for MAOP at 60psi or 4bar
- Electrofusion fitting with angular branch
Interested in having ULC perform this work as a service including Large Diameter Inspections (12"+)?
USE Cases
PRX Camera Systems: Applications
Identify, Inspect & Locate Features
Utilities have an increasing need to identify and inspect features in gas mains. ULC’s crews provide detailed video and mapping of features such as couplings, stub services, tees and valves. From within the gas main, our camera and crawler systems can deliver a detailed visual assessment of PE pipework to identify imperfections that may not be visible from outside the pipe.
Unlocatable PE
ULC Technologies is helping utilities resolve challenges around unlocatable PE gas mains by providing a means of locating and mapping the main and all features visible from within the pipe. Our crews provide pinpoint accurate markout for excavation crews or accurate utility mapping so utilities can update mapping.
Eliminate 3rd Party Damage
Using our specialized equipment, our teams pinpoint the exact location of your mains along with all pipeline features—even those not traceable by traditional locating methods. The resulting mark out provides the road map construction crews need to ensure project efficiency and safety. ULC manages large scale programs in conjunction with cast iron replacement programs and Aldyl-A replacement programs.
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Reach out today and discuss how our innovative technology can help with your next project.