Solution Summary: Push-Fit Heat-Free Connections
Using push-fit heat-free connections is a prevention-through-design (PtD) process that addresses the risk of hot work (e.g., welding, joining, etc.) during the construction phase. This solution eliminates hot-work risks by using heat-free pipe joining. These innovative push-fit connections are ideal for use in confined spaces, reduce the need for flammable products storage, and eliminate fire risks. Compared to conventional practices of solvent-gluing PVC pipes or soldering copper pipes with a torch, the push-fit connections are considerably easier to use and do not require dangerous torches and solvents.
The Bureau of Labor Statistics (BLS) reported 121 fatal injuries due to fire and explosion in 2015. NIOSH’s National Traumatic Occupational Fatality (NTOF) database also reported rates of 0.2 fire deaths and 0.3 explosion deaths per 100,000 construction workers. Although the fatality rate has decreased over the last five years, fatalities continue to occur, more attention is needed to prevent these incidents. Welding and other hot works are the leading causes of fires at jobsites. Fire detection and extinguishing equipment are inoperable during the construction phase, increasing the risk of fire in this phase of the project. In addition, many flammable materials are stored at job sites during the construction phase that increase the risk of fire considerably. By eliminating the use of glues, this solution also reduces the risk of vapor exposures.
How Risks are Reduced:
The use of heat-free jointing eliminates the need to apply for hot-work permits and reduces the risks of flame damage and fire incidents during construction projects. The joining process is easy, which can shorten installation time. There is no need to store fuel gases, adhesives, fluxes, solders, or any other jointing materials, thus increasing job site safety and eliminating fire risks.
Effects on Productivity:
The speed of making connections and ease of maintenance are perhaps the most important advantages of push-fit connections. Moreover, push-fit connections are heat-free connections, which eliminate the risk of fire incidents. Thus, the advantages of push-fit connections – improved on-site safety, enhanced joint performance, and shortened project time – offer greater productivity.
Sogand Hasanzadeh - SARMAD Research Group, University of Nebraska- Lincoln
Behzad Esmaeili, Ph.D. - SARMAD Research Group, University of Nebraska- Lincoln
Pouya Gholizadeh - SARMAD Research Group, University of Nebraska- Lincoln
- Pipes & Vessels
- Assemble pipes, tubing and fittings
- Cut, thread, hammer and bend pipes and vessel tubes
- Disassemble and remove damaged or worn pipe
- Install pipe assemblies, fittings, valves, appliances and fixtures
- Repair or replace defective vessel parts
- Weld, braze, solder, cut, or gouge pipe sections or vessel parts