July 2026

When selecting pipe fittings for your fire protection system, it is important to ensure that they can hold the necessary pressure, make installation as easy as possible, reduce the risk of maintenance issues, and satisfy any compliance requirements of the project. Ductile iron grooved pipe fittings are...

The K-factor is a crucial selection parameter in the design of a fire protection system. The sprinkler’s K-factor determines the fire sprinkler’s maximum allowed flow, required pressure and the overall system design’s efficiency to protect a fire. Here we look at how to pick a number of different K-factors...

A procurement manager sent us a valve inquiry last week. He wrote: “Sealing requirement: Class C.” We replied: “Which Class C? Seat leakage or fugitive emission?” He did not know there were two. That happens all the time. Engineers, buyers, even some experienced contractors mix up these two standards....

Connections in fire protection, plumbing, gas distribution, and industrial piping systems are amongst the most critical elements of any system. Those connections that are made using malleable iron pipe fittings are particularly popular due to their high strength, ductility, and ability to handle fluctuating...