玄幻小说改编的电视剧,完美世界txt下载,完美世界小说下载 http://www.gzmykj.com.cn/en/?cat=8 Wed, 14 Aug 2024 08:27:26 +0000 zh-Hans hourly 1 https://wordpress.org/?v=6.7.2 http://www.gzmykj.com.cn/en/wp-content/uploads/2024/09/cropped-cropped-logo1-32x32.png VALVE歸檔 - DEZHOU L&A PETROLEUM MACHINERY CO.,LTD http://www.gzmykj.com.cn/en/?cat=8 32 32 OTECO GATE VALVE http://www.gzmykj.com.cn/en/?p=307 Fri, 09 Apr 2021 06:24:05 +0000 http://8.140.161.178/en/?p=307 The 7500 PSI OTECO MUD GATE VALVE Made From High S Read more…

OTECO GATE VALVE最先出現在DEZHOU L&A PETROLEUM MACHINERY CO.,LTD

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The 7500 PSI OTECO MUD GATE VALVE Made From High Strength Alloy Steel,Corrosion Resisting,Easy To Repair. Imported Rubber Seated,With Nice Sealing Performance And High Compressive Strength. Especially Suitable To The Cold Area. The Gate Valve have three way connection: welding connection, union connection and flange connection.

3“ welding connection
3“ union connection
3” flange connection
4“ welding connection
4“ union connection
4” flange connection

OTECO GATE VALVE最先出現在DEZHOU L&A PETROLEUM MACHINERY CO.,LTD

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DEMCO Butterfly valve http://www.gzmykj.com.cn/en/?p=303 Fri, 09 Apr 2021 06:15:58 +0000 http://8.140.161.178/en/?p=303 DEMCO Butterfly valve is a type of flow contr Read more…

DEMCO Butterfly valve最先出現在DEZHOU L&A PETROLEUM MACHINERY CO.,LTD

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DEMCO Butterfly valve is a type of flow control device, used to regulate a fluid flowing through a section of pipe. The valve is similar in operation to a ball valve. A flat circular plate is positioned in the center of the pipe. The plate has a rod through it connected to a handle on the outside of the valve.
Rotating the handle turns the plate either parallel or perpendicular to the flow of water, shutting off the flow. It is a very robust and reliable design. However, unlike the ball valve, the plate does not rotate out of the flow of water, so that a pressure drop is induced in the flow.

DEMCO Butterfly valve

DEMCO Butterfly valve最先出現在DEZHOU L&A PETROLEUM MACHINERY CO.,LTD

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DEMCO GATE VALVE http://www.gzmykj.com.cn/en/?p=298 Fri, 09 Apr 2021 06:12:41 +0000 http://8.140.161.178/en/?p=298 DEMCO GATE VALVE with a disk-shaped closing e Read more…

DEMCO GATE VALVE最先出現在DEZHOU L&A PETROLEUM MACHINERY CO.,LTD

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DEMCO GATE VALVE with a disk-shaped closing element that fits tightly over an opening through which water passes.

DEMCO GATE VALVE, or Sluice Valve, as it is sometimes known, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar. The gate faces can form a wedge shape or they can be parallel.

DEMCO GATE VALVE are sometimes used for regulating flow, but many are not suited for that purpose, having been designed to be fully opened or closed. When fully open, the typical gate valve has no obstruction in the flow path, resulting in very low friction loss.

DEMCO GATE VALVE are prone to corrosion. Here the shaft has broken. MUD GATE VALVE are characterized as having either a rising or a no rising stem. Rising stems provide a visual indication of valve position. No rising stems are used where vertical space is limited or underground.

DEMCO GATE VALVE最先出現在DEZHOU L&A PETROLEUM MACHINERY CO.,LTD

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HIGH PRESSURE VALVE BODY http://www.gzmykj.com.cn/en/?p=287 Fri, 09 Apr 2021 06:06:55 +0000 http://8.140.161.178/en/?p=287 HIGH PRESSURE VALVE BODY最先出現在DEZHOU L&A PETROLEUM MACHINERY CO.,LTD

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HIGH PRESSURE VALVE BODY最先出現在DEZHOU L&A PETROLEUM MACHINERY CO.,LTD

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