Working in confined spaces such as manholes, tanks, and tunnels presents serious safety risks due to limited airflow and hazardous gases. The UB20 Manhole Entry Device is designed to solve these challenges by providing powerful and reliable ventilation. Compact and lightweight, it is easy to deploy while delivering strong airflow to keep workers safe and productive.
Industries worldwide trust the UB20 for confined space ventilation, from utility crews to emergency responders. In this article, we’ll explore its key features, applications, and benefits to show why the UB20 is a proven solution for confined space safety.
Why Manhole Entry Devices Are Essential for Safe Operations
Confined spaces such as manholes, tanks, and underground vaults often have limited airflow, making them hazardous for workers. Smoke, toxic gases, or a lack of oxygen can quickly turn these environments into high-risk areas.
In such situations, proper ventilation is essential to maintain breathable air and reduce risks during entry and exit. Continuous airflow ensures safer working conditions and improves the efficiency of crews operating inside.
Manhole entry devices address this need by allowing ventilation without blocking the entry point. They are widely used in utilities, oil and gas, wastewater management, and emergency response, where safe access and reliable ventilation are critical.
What is the RAMFAN UB20 Manhole Entry Device?
The UB20 Manhole Entry Device (M.E.D.) is a specialized ventilation solution designed to make confined space entry safer and more efficient. It allows workers to enter and exit small manhole-sized openings without interrupting the continuous flow of fresh air, which is critical for maintaining safe working conditions.
Unlike traditional ducting that can block access to manholes, the UB20 M.E.D. system is engineered to keep the opening clear while still directing airflow into the confined space. Its unique design transitions airflow from circular to elliptical and back again, ensuring optimal ventilation while leaving enough room for workers to pass through quickly and safely.
Constructed from rugged polyethylene, the device is built to withstand tough handling and years of use in demanding environments. Used together with the RAMFAN UB20 ventilator, the M.E.D. provides a reliable solution for confined space operations where both airflow and unobstructed entry are essential.
Key Features of the RAMFAN UB20 Manhole Entry Device
The UB20 Manhole Entry Device is built to improve safety and efficiency during confined space operations. Below are the standout features that make it a reliable choice for ventilation and worker access:
- Uninterrupted ventilation
The system maintains a steady supply of fresh air into confined spaces while leaving the manhole opening clear. This ensures workers can safely enter and exit without airflow being blocked by ducting.
- Optimized airflow design
By changing the duct’s shape from circular to elliptical and back, the device reduces velocity loss and maximizes airflow. This design keeps confined spaces properly ventilated while leaving ample room for worker access.
- Quick and easy assembly
The M.E.D. system is designed for fast setup in the field. Its swiveling elbow makes duct alignment simple, minimizing delays in critical operations.
- Durable construction
Built from rugged polyethylene, the device is engineered to withstand rough handling and demanding environments. Its long-lasting build quality ensures years of dependable use.
- Comprehensive kit
The package includes a Quick-Couple canister with 4.6 m and 1.5 m duct sections, a manhole entry device, a 90° elbow, a universal mount, and a 20 cm duct adapter for additional duct connections. This makes it a complete solution for confined space ventilation needs.
- Compatible with RAMFAN UB20 ventilator
The M.E.D. requires the RAMFAN UB20 ventilator (sold separately) to deliver high-performance airflow. Together, they form a reliable confined space ventilation system trusted across industries.
Applications of the RAMFAN UB20 Manhole Entry Device
The UB20 Manhole Entry Device is designed for use in confined spaces where continuous ventilation is critical and access must remain unobstructed. Its unique design makes it suitable for a wide range of industries and operations:
- Utility maintenance
Ideal for electrical, water, and sewer utilities, the device keeps ducts out of the way while ensuring steady airflow in manholes and vaults. This helps crews work safely in underground networks.
- Industrial operations
In factories or plants where confined space entry is necessary, the UB20 M.E.D. provides proper ventilation without slowing down entry or exit. This is especially useful during inspections and maintenance tasks.
- Oil, gas, and chemical facilities
The system minimizes airflow velocity loss, which is vital in hazardous environments where toxic gases may accumulate. Workers benefit from continuous fresh air while operating in tight spaces.
- Emergency response
Firefighters and rescue teams can quickly deploy the device to ventilate smoke-filled manholes or tanks. The rugged polyethylene construction ensures reliability even under demanding conditions.
- Construction and infrastructure projects
The UB20 M.E.D. supports crews working in tunnels, shafts, or other confined areas by providing constant ventilation while leaving access clear for equipment and personnel.
Buy RAMFAN Portable Ventilators from PE Energy
In both industrial operations and emergency response, having reliable ventilation equipment is not optional but essential. From clearing toxic gases in confined spaces to improving air quality in hazardous environments, ventilators play a critical role in protecting workers, minimizing risks, and ensuring operational efficiency.
When investing in such vital equipment, it is important to buy only from authorized suppliers. This ensures that you receive genuine products backed by manufacturer support, guaranteeing performance, durability, and compliance with safety standards.
PE Energy is an authorized distributor of RAMFAN portable ventilators, trusted by industries and emergency services worldwide. We provide competitive pricing and bulk supply options, helping businesses reduce procurement costs, plan effectively, and keep operations running without unnecessary downtime.
In addition to the UB20 Manhole Entry Device, PE Energy supplies a wide range of RAMFAN ventilators, including defense ventilators, hazardous location ventilators, and confined space ventilators. Whether you are looking for the RAMFAN EX50Li, RAMFAN UB20 Blower/Exhauster, or RAMFAN UB30 Blower/Exhauster, PE Energy has the right ventilation solution for your operational needs.
Contact PE Energy today for a quote on the UB20 Manhole Entry Device and ensure your operations remain safe, efficient, and prepared for any challenge.