The ninety lowering elbow is built to improve course in addition to reduce the dimension of pipe inside a piping method. The lessening elbow eliminates a single pipe fitting and cuts down the welding by more than one-3rd. A. Yes. Numerous providers and persons make use of the abbreviation IPS http://valvesandfittings23444.blog5.net/27073013/valves-and-fittings-no-further-a-mystery