Check valve check valve or check valve, also known, its role is to prevent the media back in the pipeline. Pump water off the bottom valve check valve category also belong.
hoist pieces by the media flow and forces to open or close, to prevent the media called the check valve backflow valve. Check valves are automatic valves, primarily for one-way flow of media channels, the only medium to flow in one direction, to prevent accidents.
check valve according to the structure can be divided into the lift check valve, swing check valve and butterfly valve three. Lift check valve can be divided into vertical and horizontal check valve two. Swing check valves are divided into single lobe-type check valve, check valve and double valve Orange Peel-type check valve three. Butterfly valve for the straight-through valve, check valve in the connection form of several above can be divided into threaded check valve, check valve and flange welded check valve three.
check valve shall be installed in the top note the following things:
1, the check valve in the pipeline do not bear the weight of a large non-return valve should be independent of support, so that does not generated by the pipe system pressure.
cable tray supplier, cable management trays, basket cable tray
2, installation, note the direction of media flow and the body of the ticket should be the arrow direction. 3, the vertical lift flap valve should be installed in a vertical pipe. 4, the level of valve lift check valve should be installed in horizontal pipelines.
nominal pressure check valve or pressure level: PN1.0-16.0MPa, ANSI CLASS 150-900, JIS10-20K nominal diameter or caliber: DN15 ~ 900, NPS 1 / 4 ~ 36 connections : flange, welded, threaded, socket welding, etc. Applicable Temperature: -196 ℃ ~ 540 ℃ Body materials: WCB, ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8 (304), CF3 (304L), CF8M (316), CF3M (316L ), Ti. Use of different materials, non-return valve can be applied to water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea and other media
没有评论:
发表评论