Pre Pleat HV air filters are designed to operate in high velocity and turbulent air applications where standard pleated filters tend to fail. Pre Pleat Class 1 air filters are designed for applications where a UL Class 1 fire rated filter is required and metal frames are unsuitable. Pre Pleat HT air filters are designed for applications where the temperatures reach up to 500 oF.
Noun [edit]. calf â(plural calves or calfs). 1  A young cow or bull. 2  Leather made of the skin of the calf; especially, a fine, light-coloured leather used in bookbinding. 3  A young elephant, seal or whale (also used of some other animals) . 4  A chunk of ice broken off of a larger glacier, ice shelf, or iceberg.
Calf Pain (Definition) Means a pain in the calf. This can be from muscle strain, a clot in a vein, a torn tendon, infection or a host of several other problems, including referred pain from someplace higher up, like the lower back. The best starting place for calf pain is your primary medical doctor, who can then make an appropriate referral depending on what he or she feels it might be....