Products

Anvil Fire Protection Tri-Flex Loop®

Setting the Standard in Flexibility, Reliability and Safety

The patented Anvil Fire Protection Tri-Flex Loop® is the only flexible pipe loop that absorbs and compensates for pipe movement in six degrees of freedom — including three coordinate axes — plus simultaneous rotation about those axes. The Anvil Fire Protection Tri-Flex Loop is the safest and most reliable means of absorbing movement resulting from thermal changes and random seismic shifts in a fire protection system.

tri flex loop

Manufactured to the Industry’s Highest Standards

Quality assurance and precision manufacturing are central to the Anvil Fire Protection Tri-Flex Loop. The Anvil Fire Protection product ensures safety and superior performance, as it is specially designed to withstand large and irregular movements, such as those caused by seismic activities.

The Anvil Fire Protection Tri-Flex Loop is tested and approved by Factory Mutual from 1"–12" sizes. In sizes 1"–3", this product is approved for up to 300 psi and service assemblies maintain pressure integrity to 1,200 psi — a 4:1 safety factor. In sizes 4"–12", the product is approved for up to 175 psi and service assemblies maintain pressure integrity to 700 psi, also a 4:1 safety factor.

The Anvil Fire Protection Tri-Flex Loop is designed and manufactured using state-of-the-art welding technology. The product is 100% dye penetrant-tested at the seal welds and pressure-tested prior to release for shipment. The Anvil Fire Protection Tri-Flex Loop has a three-year warranty. Please refer to warranty registration for details.

As an added service, Anvil Fire Protection provides our customers with a free Seismic Expansion Loop Sizing Software. This program allows you to:

  • Build seismic joints
  • Calculate the forces to deflect the seismic expansion loop
  • Design AutoCAD drawings as you create piping systems
  • Select a Seismic Hanger Assembly Kit
  • Create a detailed schedule of submittals
  • Save projects and edit them anywhere you have access to the web