cryogenic ball

cryogenic ball is a device that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically valves fittings, but are usually discussed as a separate category. In an open valve, fluid flows in a direction from higher pressure to lower pressure. The simplest, and very ancient, valve is simply a freely hinged flap which drops to obstruct fluid (gas or liquid) flow in one direction, but is pushed open by flow in the opposite direction. This is called a check valve, as it prevents or "checks" the flow in one direction.
   
 
No. title name date hit
7  축구팀 관리자 2016-12-09 1542
6    고온(500도) 테스트후의 시트테스트 관리자 2012-02-09 3556
5    600 lb Forged Steel Ball Valves 관리자 2012-02-09 3695
4    Top Entry Metal Seat Ball Valve 관리자 2012-02-09 1411
3    Swivel Joint 관리자 2012-02-09 1289
2  태국 전시회 무역부 2011-02-28 2543
1  캐나다 전시회 무역부 2011-02-28 2451
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