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.
In the wild, birth occurs in the dry months, but in captivity, births can happen year-round. The mother delivers a single calf while standing upright. At birth, calves weigh 104-154 pounds (47-70 Kg), and stand 72-76 inches (183-193 cm) tall. Calves grow about 1.2 inches (3 cm) per day during the first week, and are 10 feet (3 m) tall by age 1. Calves can walk within an hour of birth, and usually can run within 24 hours.