Single screw pump technical parameters

Single-screw pump is a rotor type positive displacement pump, this pump has a very good intake performance, but also has good self-priming capabilities and other advantages, so the use of such pump equipment by the user's favorite. For those who want to understand single screw pump users, single screw pump parameters and other information is to understand the single screw pump is very important content, so this is to master the content. Single screw pump technical parameters Screw pump technical parameters usually refers to the flow, excluding pressure, suction pressure, speed, pump input power (shaft power), media characteristics, medium temperature and medium viscosity. Flow rate and medium viscosity by the impact of medium viscosity also affects the pump input power, the choice of speed and medium viscosity has a great relationship, but also affect the suction pump performance. The design of the pump must consider the relationship between these parameters. 1, the flow rate of flow refers to the pump in the unit of time to send the media or the pump per revolution excluded by the media. Volume flow Q, Qz mass flow said that when the rotor rotates a week, the media along the axial movement of the stator a lead T, so the rotor rotates a week, the volume of the pump transport medium 4eDT. 2, speed screw pump to work reliably must limit the speed. The main factors affecting the selection speed are as follows: Suction performance. The higher the pump speed, the greater the flow, the speed not only affects the pumping into the cavity of the loss, and when the speed increased to a certain extent, it will happen in the suction under pressure medium too late to enter or too full Open the sealed chamber, suction into the geometric height, the medium in the suction pipe frictional resistance and the characteristics of the medium and temperature are limited to the pump speed agreed. 3, the wear of the medium The abrasion of the medium has a direct impact on the wear resistance of the rotor and the stator, which affects the service life, the more "bad" media (here only refers to the magazine, lubrication and activity, etc.) The rotor and stator must wear more easily, and the higher the speed of the pump, the faster the wear. Therefore, the speed of the pump is also limited by the abrasion of the transport medium and the like. Through the above simple introduction of the relevant technical parameters of single screw pump, single screw pump technical parameters we have a more preliminary concept, from historical experience we can find the single screw pump technical parameters for the use of single screw pump, with the single There is still a lot of places where the use of screw pumps is expanding. There are still many places that need to work hard on the research and application of single-screw pumps. This not only requires the wisdom of experts and scholars, but also requires the user's suggestions and opinions. This article is copyrighted industry interconnect (Xiamen) Co., Ltd. All are welcome to reprint, please indicate the source and author of: Asian pumps Network (CEO QQ / micro letter: 18,189,528) Editor: Coco (QQ / micro-channel: 97,129,096) starting: http : //beng.liuti.cn/ (Service Hotline:)


Bend is one kind of Pipe Fitting.made of carbon steel, stainless steel, alloy steel and other special metal materials as required by its customers.

Bend of complete sets of bending dies is adopted to bend, divided into two kinds of cold heat and hot push technology.Whether what kind of machinery, equipment and pipeline, mostly use bend, mainly used in oil, gas, fluids, etc.

Bend and bend is the most basic difference with the diameter of the pipe and elbow, bend compared with elbow bent pipe is longer, R is 2 times higher than bend, R = 1 to 2 times in which belongs to the elbow in the bending process, can use cold heat bend pipe, made from pipe bending machine bending type directly, one-time can manufacture bend, and need not secondary anti-corrosion, but bend to factory customized, do anti-corrosion, ordering cycle is long.Bend the price must be lower the elbow, but price is lower than the elbow out of many, if not do anticorrosive processing bent pipe is easy to damage, this is, as you know, I also don't say, but its because cheap in some demand is not high engineering use very much.
Elbow manufacturers custom-made, anti-corrosion, ordering cycle is long.Cold bending tube can directly use the pipe direct forming technology in tube bending machine, one-time can be completed, also need not second antiseptic, cold bending pipe construction technology has a oil standard, west-east gas with the enterprise standard.But open area with elbow bent pipe is ok, only consider the cost, cold bending can be bended tube elbow should be roasted, highly cost, of course, is the elbow.Sometimes narrow area must turn the elbow, such as regarding the section of pipeline, because of small bend radius of curvature, generally for the 6 d, and bend for 40 d.Engineering construction site construction site, use the elbow or a bend, not only should consider the price of the elbow and pipe bending quality, but also in where, so choose elbow bend.

5D Elbow


Bend Pipe Fitting

Bend Pipe Fitting,Pipe Bend,Carbon Steel Bend,Butt Weld Bend

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