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.
1 A Calf is a general term of a young bovine that has been born from a first-calf heifer or cow and has not been weaned or has not reached sexual or adult maturity yet.  Cows are mature female bovines that have had at least 2 calves. So, essentially, yes, the word cow specifically refers to one sex only: FEMALE. However, the term cow is used so often that it has lost it's specific meaning and to most people, it is a colloquial and ambiguous term that refers to all bovines, no matter what sex, age or breed they are. The more proper terms to call a bovine of unknown age or sex is a Cattle-Beast, Animal, Bovine, Critter, etc.